Skocz do pozycji: 1.

Tytuł:

Seasonal Variations of Sea Surface Temperature and Sea Current in the Celebes Sea

Autorzy:

Hapsari, Siti Nirmala
Syamsuddin, Mega Laksmini
Riyantini, Indah
Sunarto, Sunarto

Powiązania:

https://bibliotekanauki.pl/articles/1031483.pdf

Data publikacji:

2021

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Celebes Sea
Sea Current
Sea Surface Temperature

Opis:

The waters of the Celebes Sea are an area that has quite complex dynamics because it is influenced by several factors, either regionally or globally. This influence certainly has an impact on variations in oceanographic conditions in waters such as Sea Surface Temperature (SST) and sea currents. Currently, there are many observations of oceanographic data, one of which is by using remote sensing methods. The purpose of this study was to determine the seasonal variations in sea surface temperature and sea surface currents in the Celebes Sea using a remote sensing system in a time series for 5 years (2014-2018). The results of this study indicate data on seasonal variation of SST and sea surface currents have an average maximum SST value for 5 years occurring in the eastern season and the second transitional season (May, June, July) with an average value range of 30.6 °C - 31.1 °C and the average maximum sea current velocity for 5 years occurs in the western monsoon with a value range of 0.72 m/s - 0.77 m/s. The high SST value and sea current velocity are caused by the influence of the season which causes variations in the ongoing rainfall, also presumably due to the opposite direction between the monsoon wind and the direction of the main current flowing in the Celebes Sea.

Źródło:

World News of Natural Sciences; 2021, 35; 135-143
2543-5426

Pojawia się w:

World News of Natural Sciences

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:

Influence of Indian Ocean Dipole Phenomena Towards the Eddy Variability in Southern Java Ocean

Autorzy:

Rachim, Fadliyan R.
Syamsudin, Mega L.
Riyantini, Indah
Yuliadi, Lintang P. S.

Powiązania:

https://bibliotekanauki.pl/articles/1065419.pdf

Data publikacji:

2019

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Automated Eddy Detection
Eddies
IOD
SSH
Sea Temperature

Opis:

The phenomenon of Indian Ocean Dipole (IOD) can influence the variability of eddy in the Southern Java Ocean (SJO). The purpose of this research is to know the characteristics of eddy in the SJO at the time of the IOD condition. The research was conducted in Eastern Indian Ocean (EIO), South of the Java Island by coordinate 0º S – 15º S and 90º E – 120º E. The data used in this research is currents data, sea surface height (SSH) data, and temperature data from HYCOM, and Dipole Mode Index (DMI) data from Japan Marine Science and Technology (JAMSTEC). Methods used for detecting eddy is using the Automated Eddy Detection (AED) method. The results of this research show that the IOD phenomena affect the variability of eddies in the SJO, this is evidenced by the difference of the total eddies is generated at the time of normal conditions and at the time was going to the phenomenon of IOD. Total average eddies on IODM (+) conditions is 153 and on IODM (-) conditions is 144. IODM (+) conditions could cause the value of a central point of sea surface height (SSH) and sea temperature is lower than the normal conditions, the opposite IODM (-) conditions can cause the value of a central point of SSH and sea temperature is higher than the normal conditions.

Źródło:

World Scientific News; 2019, 132; 121-131
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

Overview of Oceanic Eddies in Indonesia Seas Based on the Sea Surface Temperature and Sea Surface Height

Autorzy:

Purba, Noir P.
Faizal, Ibnu
Damanik, Finri S.
Rachim, Fadliyan R.
Mulyani, Putri G.

Powiązania:

https://bibliotekanauki.pl/articles/1031834.pdf

Data publikacji:

2020

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Eddies
Indonesia Throughflow
Ocean Fronts
Water Mass

Opis:

One of the complexities of the ocean currents in the territorial waters of Indonesia is oceanic eddies form. Ocean eddy is one of the very crucial phenomena in the ocean due to its circulation and connection with the chemical and biological aspects in the water column. This study aimed to observe the distribution of oceanic eddies associated with the Sea Surface Temperature (SST) and Sea Surface Height (SSH) with the Automatic Eddy Detection (AED) method. The analysis included distribution and types correlated with seasons. The results showed that eddies occur in all regions in the Indonesian Seas except the Java Sea. In general, the occurrence of eddies every month does not differ significantly for both Ocean Cyclonic Eddies (OCE) and Ocean Anticyclonic Eddies (OAE). The total oceanic eddies in a year are around 1,149 events. A minimum radius of the ocean eddies found was about 5.08 km, and a maximum was around 386.76 km. Furthermore, the occurrence of OCE is mostly in locations that are almost the same as OAE. Both types of eddy are mostly in locations with the boundary of temperatures and the boundary of SSH. Several eddies exist every month and mostly change or move into other areas. Eddies in Indonesia seas are influenced by differences of SST and different SSH that form ocean currents. One of the complexities of the ocean currents in the territorial waters of Indonesia is oceanic eddies form. Ocean eddy is one of the very crucial phenomena in the ocean due to its circulation and connection with the chemical and biological aspects in the water column. This study aimed to observe the distribution of oceanic eddies associated with the Sea Surface Temperature (SST) and Sea Surface Height (SSH) with the Automatic Eddy Detection (AED) method. The analysis included distribution and types correlated with seasons. The results showed that eddies occur in all regions in the Indonesian Seas except the Java Sea. In general, the occurrence of eddies every month does not differ significantly for both Ocean Cyclonic Eddies (OCE) and Ocean Anticyclonic Eddies (OAE). The total oceanic eddies in a year are around 1,149 events. A minimum radius of the ocean eddies found was about 5.08 km, and a maximum was around 386.76 km. Furthermore, the occurrence of OCE is mostly in locations that are almost the same as OAE. Both types of eddy are mostly in locations with the boundary of temperatures and the boundary of SSH. Several eddies exist every month and mostly change or move into other areas. Eddies in Indonesia seas are influenced by differences of SST and different SSH that form ocean currents.

Źródło:

World Scientific News; 2020, 147; 166-178
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:

Sea surface temperature distribution during upwelling along the Polish Baltic coast

Autorzy:

Krezel, A.
Ostrowski, M.
Szymelfenig, M.

Powiązania:

https://bibliotekanauki.pl/articles/48583.pdf

Data publikacji:

2005

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

advanced very high resolution radiometer
temperature
upwelling
coastal upwelling
coastal region
sea surface
Baltic Sea

Opis:

Among over 150 maps of sea surface temperature in the Polish Baltic coastal region derived from satellite data during the warm period of the year (April–October) in 2000–2002, 41 cases were noted where its distribution showed characteristic features indicating the occurrence of coastal upwelling. The fundamental parameters of range, probability of occurrence and temperature modification caused by water from deeper sea layers raised by an upwelling event and spreading across the surface were established for three regions (Hel, Łeba and Kołobrzeg). The Kołobrzeg upwelling region had the largest spatial range (up to 5000 km2). The region with the smallest spatial range (Hel, up to 1400 km2) had the largest surface temperature amplitude (to 14◦C), the largest maximum temperature gradient (5◦C km−1) and the largest average sea surface temperature decrease in the centre in relation to the background value.

Źródło:

Oceanologia; 2005, 47, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 5.

Tytuł:

Recent sea surface temperature trends and future scenarios for the Red Sea

Autorzy:

Shaltout, M.

Powiązania:

https://bibliotekanauki.pl/articles/48804.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

sea surface
sea surface temperature
chlorophyll a
heat exchange
climate model
Red Sea

Źródło:

Oceanologia; 2019, 61, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 6.

Tytuł:

Recent sea surface temperature trends and future scenarios for the Mediterranean Sea

Autorzy:

Shaltout, M.
Omstedt, A.

Powiązania:

https://bibliotekanauki.pl/articles/49032.pdf

Data publikacji:

2014

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Mediterranean Sea
sea surface temperature
temporal distribution
spatial distribution
climate change
heat exchange
cloud cover
variation coefficient

Źródło:

Oceanologia; 2014, 56, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 7.

Tytuł:

Sea surface temperature retrieval from MSG-SEVIRI data in the Baltic Sea area

Autorzy:

Wozniak, M.
Krezel, A.

Powiązania:

https://bibliotekanauki.pl/articles/47694.pdf

Data publikacji:

2010

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

sea surface temperature
Baltic Sea
algorithm
mid-latitude region
spatial resolution
regression analysis
surface temperature
marine environment
climate change

Opis:

The aim of the paper was to confirm the proposition that the classical SST algorithms MCSST and NLSST originally prepared for AVHRR data could also be used for Meteosat/SEVIRI data with satisfactory accuracy in the mid-latitude region, where the spatial resolution is about 7×7 km. The research was performed in the southern Baltic Sea (between 13◦E 53◦N and 21◦E 58◦N). Data were collected in all the seasons of 2007. The coefficients were found by means of regression analysis. SSTs determined on the basis of AVHRR data were used in the regression analysis instead of in situ data. A set of paired AVHRR and SEVIRI images spaced no more than 8 minutes apart were compared. The results show that the method is capable of producing sea surface temperatures with a statistical error (standard deviation) of 1◦C.

Źródło:

Oceanologia; 2010, 52, 3; 331-344
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 8.

Tytuł:

Sea surface temperature development of the Baltic sea in the period 1990-2004

Autorzy:

Siegel, H.
Gerth, M.
Tschersich, G.

Powiązania:

https://bibliotekanauki.pl/articles/48942.pdf

Data publikacji:

2006

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Sopot
regional variation
sea surface temperature
seasonal variation
conference
interannual variation
Baltic Sea
trend

Opis:

Sea Surface Temperature (SST) maps derived from NOAA weather satellites for the period 1990–2004 were used to investigate seasonal and inter-annual variations in the Baltic Sea. A comparison between monthly mean SST and in situ measurements at the MARNET station ‘Arkona Sea’ showed good agreement with differences in July and August. Monthly means reflect strong seasonal and interannual variations. The yearly means show a slight positive trend with an increase of 0.8 K in 15 years. In particular, summer and autumn months contribute to this positive trend, with stronger trends in the northern than in the southern Baltic. The winters are characterised by a slightly negative trend. The winter minimum SST in the Arkona Sea correlates best with the WIBIX climate index derived for the Baltic region.

Źródło:

Oceanologia; 2006, 48, S
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 9.

Tytuł:

Annual course of superficial water temperature in the Ezcurra Inlet, King George Island, Antarctica

Autorzy:

Gurgul, Henryk
Stochmal, Wiesław
Szymczak, Wiesław

Powiązania:

https://bibliotekanauki.pl/articles/2052577.pdf

Data publikacji:

1996

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Antarctica
South Shetland Islands
sea water temperature

Źródło:

Polish Polar Research; 1996, 17, 1-2; 43-59
0138-0338
2081-8262

Pojawia się w:

Polish Polar Research

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 10.

Tytuł:

Spatial and interannual variations of seasonal sea surface temperature patterns in the Baltic Sea

Autorzy:

Bradtke, K.
Herman, A.
Urbanski, J.A.

Powiązania:

https://bibliotekanauki.pl/articles/48507.pdf

Data publikacji:

2010

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

spatial variation
interannual variation
sea surface temperature
seasonality
global climate change
thermal season
annual cycle
transitional period
Baltic Sea

Opis:

On the basis of monthly averaged satellite data, this study examined how the annual cycle of the Baltic Sea surface temperature (SST) varied spatially and temporally during the period 1986–2005. We conclude that there are two main thermal seasons in the Baltic Sea separated only by short transitional periods – spring lasting about one month, and autumn lasting two months. Generally speaking, summer covers the part of the year from June to October with the highest monthly mean SST in August. Winter, with a minimum monthly mean SST in February in shallow waters or in March in deeper areas, lasts from December to April. As a result of climate changes over the Baltic Sea region, strong positive trends in SST occur in the summer months. In consequence, the period with extremely high sea surface water temperatures has become slightly longer in the central Baltic. In the last decade winter changes in SST display zero or even negative tendencies. The investigated period was characterized by an annual increase in mean temperatures of about 0.03–0.07◦C. However, the rates of monthly mean SST changes were sometimes more than three times as high.

Źródło:

Oceanologia; 2010, 52, 3; 345-362
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 11.

Tytuł:

Influence of density stratification on effluent plume dynamics

Autorzy:

Loncar, G.
Paklar, G.B.
Janekovic, I.

Powiązania:

https://bibliotekanauki.pl/articles/47653.pdf

Data publikacji:

2011

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

3D numerical model
Croatia
density stratification
numerical model
numerical simulation
Rijeka Bay
salinity
sea temperature
statistical analysis
submarine outfall
submarine sewage

Opis:

In this study we modelled sea temperature (T ), salinity (S) and density field dynamics using a 3D numerical model applied to Rijeka Bay (Croatia) in order to explore their effect on effluent plume dynamics in the vicinity of four submarine sewage outfalls when the bora wind (NE direction) is blowing. The vertical density stratification in the area studied is strongly related to the bora wind, which contributes significantly to the lowering of the pycnocline depth through enhanced mixing in the vertical, giving rise to changes in the neutral buoyancy level. The features of near-field plume dynamics were calculated with the use of a separate near-field numerical model, using information on the vertical density distribution previously calculated using a 3D numerical model. The results of the numerical simulations and statistical analysis of the wind data indicate a very low probability of complete water column homogenization and consequent effluent plume rise to the sea surface under the influence of the bora wind during the peak tourist season (May–September).

Źródło:

Oceanologia; 2011, 53, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 12.

Tytuł:

Indian Ocean wind speed variability and global teleconnection patterns

Autorzy:

Sinha, M.
Jha, S.
Chakraborty, P.

Powiązania:

https://bibliotekanauki.pl/articles/2079299.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

wind speed
variability
sea surface temperature
remote sensing
Indian Ocean

Opis:

The influence of the local sea surface temperature (SST) and remote ENSO (El Niño-Southern Oscillation) indices on the wind speed (WS) data were explored for the Indian Ocean region. Relationships among the parameters were studied using spatial correlation plots and significant correlation ranges. Two months (July and January) representing opposite monsoon phases were selected for analysis for the period 1950–2016. There was a significant negative correlation between WS and SST over the Bay of Bengal (BOB) during July. Although different ENSO indices correlated differently in different areas of the Indian Ocean, the region off the coast of Sri Lanka was most significantly teleconnected. The southwest monsoon locally impacted the WS and SST relationship and the WS parameter was remotely teleconnected in both the monsoon seasons. Further empirical orthogonal function (EOF) analysis was applied on the 67 years WS data of the BOB region to extract the dominant mode representing maximum variability of the total variance. The temporal pattern of the first principal component (PC1) of WS data was linked to the North Atlantic Oscillations in January and the Atlantic Multidecadal Oscillation in July respectively. The continuous wavelet power spectra of the PC1 of WS showed significant regions in the 2–4-year band resembling the ENSO variability. Wavelet coherence applied between PC1 of WS and the ENSO indices showed greatest values for January in the 8–16-year band and for July in the 0–4-year band. A close relationship was established between the WS variability in BOB and the ENSO indices.

Źródło:

Oceanologia; 2020, 62, 2; 126-138
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

Zmiany temperatury powierzchni Morza Czukockiego (1982-2008)
Changes of sea surface temperature at the Chukchi Sea (1982-2008)

Autorzy:

Zblewski, S.
Marsz, A. A.

Powiązania:

https://bibliotekanauki.pl/articles/261049.pdf

Data publikacji:

2009

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

Morze Czukockie
temperatura powierzchni morza
cyrkulacja atmosferyczna
sea surface temperature
atmospheric circulation

Opis:

Praca charakteryzuje zmiany temperatury powierzchni Morza Czukockiego zachodzące w okresie 1982-2008 oraz wpływ na te zmiany cyrkulacji atmosferycznej. Stwierdzono występowanie dodatnich, istotnych statystycznie, miesięcznych i rocznych trendów temperatury powierzchni morza (TPM), nierównomiernie rozłożonych w przestrzeni. Obserwuje się występowanie asynchronicznych związków między cyrkulacją atmo-sferyczną a TPM, przy czym zmiany cyrkulacji atmosferycznej wyprzedzają w czasie zmiany TPM. W badanym okresie najsilniejszy wpływ na miesięczne i roczne zmiany TPM ma charakter cyrkulacji atmosferycznej występu-jącej w dłuższych okresach – wiosną, a nawet w całym okresie marzec-sierpień i marzec-wrzesień, poprzedzającym moment wystąpienia maksimum temperatury powierzchni morza. Wpływ cyrkulacji atmosferycznej na zmiany TPM nie jest bezpośredni, lecz realizuje się poprzez wpływ na dryf lodów na Morzu Czukockim w okresie wiosen-nym i letnim.
This work characterizes changes in sea surface temperature of the Chukchi Sea observed in the period 1982- 2008 and the way atmospheric circulation (mid-troposphere circulation, modified Arctic Dipole) influences these changes. The research made use of homogeneous data series of sea surface temperature (SST) originating from the data set NOAA NCDC ERSST v.2, in a 2�‹. x 2�‹�É grid (Fig. 1). In the examined period (1982-2008) the increase in sea surface temperature of the Chukchi Sea was observed (Table 1). In the central and southern part of the sea the increase in SST is much stronger (+0.067 deg/year) than in the northern part (0.002 deg/year). This phenomenon is connected with the fact that the northern part of the examined sea area was freed from ice only after the year 2002. During the observed period there was also mean annual increase in SST ranging from 0.62�‹C in the south-west part to 0.03�‹C in the northern part of the examined region (Fig. 2). In the period 1982-2008 strong, statistically significant correlations between SST and the character of the atmospheric circulation observed before were noted. The correlations of SST in the Chukchi Sea are stronger than those with the modified Artic Dipole. The changeability of value of the modified Arctic Dipole from March to September explains 36% (in the eastern part of the sea area) and up to 46% (in the western part) of annual changeability in SST. However the influence of changes in atmospheric circulation on the changeability of SST is not direct. The character of atmospheric circulation noted in spring season (III-V) and even during the entire spring and summer seasons (III-VIII) has influence on the ice drifting in the Chukchi Sea. The drifting ice has influence on the time during which the sea surface accumulates the heat and as a consequence affects the sea surface temperature. This sequence of consecutive correlations seems to be most important for the changes in the SST. The secondary role affecting the changes in SST in the Chukchi Sea plays the increased transport of warm water from the Bering Sea forced by strong positive phases of modified Arctic Dipole in September. This influence is limited to the area up to the southern part of the Chukchi Sea and to the time till the last three months (October-December).

Źródło:

Problemy Klimatologii Polarnej; 2009, 19; 147-158
1234-0715

Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:

Wpływ zmian temperatury wody powierzchniowej mórz Barentsa, Norweskiego i Grenlandzkiego na trend rocznej temperatury powietrza na Spitsbergenie
Influence of changes in sea surface temperature in the Barents, Norwegian and Greenland seas on the annual air temperature trend at Spitsbergen

Autorzy:

Styszyńska, A.

Powiązania:

https://bibliotekanauki.pl/articles/261025.pdf

Data publikacji:

2011

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

temperatura powietrza
temperatura powierzchni morza
Spitsbergen
air temperature
sea surface temperature

Opis:

Praca omawia wpływ zmian temperatury wód powierzchniowych (SST - sea surface temperature) mórz Barentsa, Norweskiego i Grenlandzkiego zachodzących w okresie zimowego wychładzania (styczeń-kwiecień) na roczne i sezonowe wartości temperatury powietrza na Spitsbergenie w okresie 1912-2010. Stwierdzono, że zimowa SST rozległej powierzchni mórz otaczających Spitsbergen jest silnie skorelowana z roczną temperaturą powietrza na Spitsbergenie przez kolejne trzy lata (k, k+1, k+2). Powierzchnia akwenów, na których występują opóźnione korelacje z temperaturą powietrza na Spitsbergenie stopniowo zmniejsza się, a siła związków słabnie. Obszary, na których w roku k+2 korelacje utrzymują najwyższą (p < 0.001) istotność odtwarzają szlaki przenosu prądowego. Akwen, na którym zmienność SST z roku k najsilniej koreluje z roczną i zimową temperaturą powietrza na Spitsbergenie w kolejnych trzech latach (k, k+1, k+2) nie zmienia swojego położenia - jest to obszar leżący na pograniczu N części Morza Norweskiego i W części Morza Barentsa - między Bjornoyą a Nordkapem. Długookresowe zmiany temperatury powierzchni mórz wokółspitsbergeńskich regulują długookresową zmienność temperatury powietrza na Spitsbergenie, a występujący w przebiegu rocznej temperatury powietrza trend ma swoją genezę w zmianach zasobów ciepła w wodach tych mórz.
This work discusses the influence of changes in SST (sea surface temperature) of the Barents, Norwegian and Greenland seas occurring during winter cooling (January-April) on annual and seasonal air temperatures at Spitsbergen during 1912-2010. It was found that the winter SST of vast seas surrounding the region of Spitsbergen is strongly correlated with annual and winter air temperature at Spitsbergen during the next three years (k, k+1, k+2). The sea areas, where the delayed correlations with air temperature at Spitsbergen are observed, gradually decrease, and the strength of the correlation decreases. The routes of moving current represent the areas where correlations maintain the highest significance (p <0.001) in the year k+2. The sea area, where variability of SST from year k is most strongly correlated with the annual and winter air temperature at Spitsbergen in the next three years (k, k+1, k+2) does not change its position - this is the area lying on the border of the north part of the Norwegian Sea and the west part of the Barents Sea - between Bjornoya and Nordkap. Long-term sea surface temperature changes of vast seas surrounding the region of Spitsbergen regulate the long-term variability of the air temperature on Spitsbergen, and appearing in the course of the annual air temperature trend has his own genesis in changes of resources of the warmth in waters of these seas.

Źródło:

Problemy Klimatologii Polarnej; 2011, 21; 115-131
1234-0715

Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:

Influence of the parametrization of water optical properties on the modelled sea surface temperature in the Baltic Sea

Autorzy:

Stramska, M.
Zuzewicz, A.

Powiązania:

https://bibliotekanauki.pl/articles/49070.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Baltic Sea
sea surface temperature
parametrization
optical property
water column
biogeochemical modelling
light propagation
vertical distribution
spectral range
photosynthetically available radiation

Źródło:

Oceanologia; 2013, 55, 1
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 16.

Tytuł:

Validation and statistical analysis of the group for high resolution sea surface temperature data in the Arabian Gulf

Autorzy:

Nesterov, O.
Temimi, M.
Fonseca, R.
Nelli, N.R.
Addad, Y.
Bosc, E.
Abida, R.

Powiązania:

https://bibliotekanauki.pl/articles/2078874.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

validation
statistical analysis
sea surface temperature
annual variability
seasonal variability
Arabian Gulf
Oman Sea

Opis:

The combined effect of climate change and steadily increasing seawater demand for industrial and domestic purposes in the Arabian Gulf region has a significant impact on the ecosystem in this region. Additionally, this effect may reduce the efficiency and increase the operating costs of industrial facilities that utilize seawater for cooling and other purposes. In this context, it is important to know various statistical characteristics of the sea surface temperature (SST) and their trends, in addition to the mean climatological characteristics. The analysis conducted in this study utilized a 17-year Group for High Resolution Sea Surface Temperature Level 4 dataset of 0.01 × 0.01° spatial resolution. First, the dataset was compared against a 2-year seawater temperature measurements at the ten offshore buoys in the relatively shallow coastal waters of the United Arab Emirates between Ras Ghumais and Dubai, which showed a reasonably good agreement between the two datasets, with the estimated root mean square deviations ranging from 0.5 to 0.9°C. Subsequently, several statistical SST characteristics were calculated. The trend analysis showed not only positive tendencies in the mean SSTs of up to 0.08°C/year in the northern Gulf, but also the trends in the annual percentile exceedances, particularly the 95th percentiles (near-maximum SSTs), which increased by approximately 0.07°C/year in the western United Arab Emirates and eastern Qatar waters. On the contrary, the 5th percentiles (near-minimum SSTs) decreased by up to 0.1°C/year, especially in the waters around Bahrain, Qatar, and the western United Arab Emirates. These results indicate that extreme hot and cold SST events in the Gulf are becoming more frequent and more extreme than before.

Źródło:

Oceanologia; 2021, 63, 4; 497-515
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:

Fisher–Shannon analysis of the time variability of remotely sensed sea surface temperature at the Brazil–Malvinas Confluence

Autorzy:

Pierini, J.O.
Lovallo, M.
Gomez, E.A.
Telesca, L.

Powiązania:

https://bibliotekanauki.pl/articles/47981.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Źródło:

Oceanologia; 2016, 58, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

Zlodzenie Hornsundu i jego przedpola (SW Spitsbergen) w sezonie zimowym 2006/2007
Sea-ice cover in Hornsund and its foreshore (SW Spitsbergen) during winter season 2006/2007

Autorzy:

Styszyńska, A.
Rozwadowska, A.

Powiązania:

https://bibliotekanauki.pl/articles/260707.pdf

Data publikacji:

2008

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

Hornsund
Spitsbergen
lód morski
sezon lodowy
sea ice
winter season
sea water temperature

Opis:

W sezonie zimowym 2006/2007 przebieg zlodzenia Hornsundu był odmienny od przeciętnego. Od listopada do marca średnia miesięczna temperatura powietrza była o 3.6–6.3 deg wyższa od średniej klima-tycznej (1978–2006). Ujemna temperatura wody powierzchniowej przy brzegu Isbjornhamny występowała od 28 IX 2006 do 27 V 2007 r. Najniższe wartości temperatury wody mierzono w drugiej i trzeciej dekadzie października (–1.8°C). Latem i jesienią 2006 r. dochodziło do bardzo intensywnego obłamywania się lodu lodowcowego, który okresowo tworzył zwarte skupienia wzdłuż brzegu. Rozwój lodu morskiego w Isbjornhamnie cechuje się stadial-nością. Pierwszy okres tworzenia się lodu morskiego miał miejsce między 6 października a 3 listopada, drugi – od połowy stycznia. W tym samym czasie dryfujący lód allochtoniczny pojawił się również na przedpolu fiordu. Od trzeciej dekady lutego do drugiej dekady kwietnia prawie cała powierzchnia Hornsundu pokryta była lodem dryfu-jącym o zmiennej zwartości. Na osiowej partii fiordu lód morski zanikł po 25 kwietnia, a w Brepollen – w trzeciej dekadzie czerwca 2007 r. Maksymalna wysokość wału lodu nabrzegowego w Isbjornhamnie osiągnęła 2.5 m.
This article presents the development of sea ice cover in the waters of central and western part of the Hornsund Fjord, as well as in its foreshore during winter season 2006–2007. Due to long lasting (November-March) high air temperatures (Fig. 1) the sea ice cover development of Hornsund was different from the average one. Significant decrease in air temperature was observed only in April (mean monthly –8.7°C). In such thermal conditions the maximum thickness of sea ice which might have been formed in the outer, sheltered from high seas areas of the fjord, estimated with the help of Zubov formula, could reach 47cm in January, 58cm in February, 66cm in March, up to 77–80cm in the period from April to May 2007 (Tab.1). In summer and autumn 2006 only brash glacier ice and small icebergs broken off the glaciers endings on the sea in Hornsund drifted in the waters of the fjord. At this time brash glacier ice and growlers broken off the Hans Glacier periodically concentrated densely along the coast of Isbjorhamna. The first forms of new ice (slush and grease ice as well as shuga) were observed close to the west coast of Isbjornhamna from 6th October till 3rd November. The second period of sea ice formation started on 7th December. However, the ice disappeared quickly because of strong winds. Not sooner than in the middle of January when severe frost was noted, a permanent ice cover was formed (young ice). But also this ice was broken and diverged in most part of the fjord. Fast ice was only observed in the internal waters of Hornsund, in the Brepollen, Burgerbukta and Samarinvagen bays. From the third decade of February till the end of April the ice cover of Hornsund experienced large fluctuations. During that period the entire area of Hornsund was covered with sea ice a few times. This phenomenon was noted when the allochtonic ice drifting in the waters of the Sorkapp Current entered western and central part of the fjord and when the central and inner parts were covered with ice formed in situ. This sea ice cover was several times destroyed by very strong east winds causing that most of ice was moved outside the fjord. At the beginning of May very strong E and SE winds caused ice removal from the axial part of Hornsund. Later, apart from two short episodes (19-29 May and 22-23 June) when open strips of allochtonic ice entered west and central part of the fjord, only single floes of broken-off the fast ice from Brepollen, Burgerbukta and Samarinvagen drifted in the waters of Hornsund. The ice season 2006/2007 ended on 19th July when the last floes of very rotten ice were observed drifting from the inside of the fjord with the tidal stream to its foreshore.

Źródło:

Problemy Klimatologii Polarnej; 2008, 18; 141-160
1234-0715

Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 19.

Tytuł:

Wpływ zmian temperatury powierzchni oceanu na Morzu Norweskim na temperaturę powietrza na Svalbardzie i Jan Mayen (1982-2002)
The influence of the changes in sea surface temperature of the Norwegian Sea on the air temperature at Svalbard and Jan Mayen (1982-2002)

Autorzy:

Kruszewski, G.
Marsz, A. A.
Zblewski, S.

Powiązania:

https://bibliotekanauki.pl/articles/260931.pdf

Data publikacji:

2003

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

temperatury powietrza
temperatury powierzchni oceanu
Morze Norweskie
air temperature
sea surface temperature
Norwegian Sea

Opis:

This work deals with correlations between SST in the Norwegian Sea and air temperature at selected stations located in the Atlantic sector of Arctic (Bjornoya, Hornsund, Svalbard-Lufthavn, Ny Alesund and Jan Mayen). The southern and central parts of the Norwegian Sea show the strongest correlation with the air temperature at the above mentioned stations, whereas the northern parts of this sea show weaker correlation. Apart from synchronic correlations (occurring in the same months) asynchronic correlations have been found. The latter are generally much stronger than the synchronic ones. The predominant influence on the changes in air temperature at the stations have the winter SST (JFMA) in the central part of the Norwegian Sea (grid 2° x 2°, 67°N, 010°E). These winter SST show quite strong correlations with monthly air temperature at Bjornoya, Hornsund, Svalbard-Lufthavn and Jan Mayen in July, August and September. At Ny Alesund station the period with statistically significant correlation between the air temperature and the winter SST is limited to September. The strongest correlation can be observed in August (see Table 4). The observed correlations result from modification in atmospheric circulation, caused by increased heat volume in the Norwegian Sea. Such modification is reflected in the increased frequency of occurrence of meridional atmospheric circulation, which is accompanied by the increase in the frequency of air advection from the S to this sector of Arctica. Some correlations which show more significant time shift have also been observed (see Table 5). Winter SST indicate positive correlations with air temperature observed at Bjornoya and Horn-sund in August and September the following year and at Svalbard-Lufthavn in September. At Ny Alesund station the coefficients of correlation with the air temperature in the following year are increased but they do not reach the statistically significant level. Another period with statistically significant correlations is November and December the following year; significant correlations with winter SST occur at Bjornoya (r = 0.71) and all stations located on Spitsbergen (r = 0.57). The correlations of SST with air temperature observed at Jan Mayen the following year are different, i.e. the presence of strong correlations is limited to summer season - July, August and September (r ~ 0.6). The correlations with winter SST occurring in November and December the following year is connected with warm masses carried to this region together with waters with the West Spitsbergen Current. Correlations between SST and air temperature present in summer and at the end of summer the following year may probably be influenced by the modification of atmospheric circulation. The only significant correlation with summer (July and August) SST indicates the temperature of February the following year at stations located on Spitsbergen and Jan Mayen. These correlations are negative (r ~ -0.55 - -0.50). The reason for occurrence of such correlations is not clear. The changeability of winter SST in the central part of the Norwegian Sea explains from 20% (Hornsund) to 32% (Bjornoya) of changeability in annual air temperature at the above mentioned stations in the same year and from 34% (Jan Mayen) to 41% (Hornsund) of changeability in annual air temperature in the following year. The increased level of explanation of changeability in air temperature the following year influenced by winter SST is connected with the delayed flowing of the Atlantic waters to high latitudes carried with the Norwegian Current and the West Spitsbergen Current.

Źródło:

Problemy Klimatologii Polarnej; 2003, 13; 59-78
1234-0715

Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

Stan termiczny wód powierzchniowych Bałtyku a temperatura powietrza w Polsce
Sea surface temperature in Baltic and air temperature in Poland

Autorzy:

Styszynska, A.

Powiązania:

https://bibliotekanauki.pl/articles/2084511.pdf

Data publikacji:

2011

Wydawca:

Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych

Tematy:

Baltyk
morza
wody powierzchniowe
stan termiczny
temperatura powietrza
Polska
korelacja

Opis:

The influence of sea surface temperature (SST) changeability of the Baltic Sea on the monthly and seasonal air temperature in Poland has been examined here. Spatial variability of these correlations was analyzed in the period 1950-2009, and temporal changes - in the years 1854-2009. A significant influence of changes in SST of the Baltic on air temperature in Poland at the end of winter (February-March) and in the middle of summer (Juty-August) was indicated. The correlations between SST and the air temperature are stable both in space and time. In fact the same correlation coefficients are noted at particular stations both for 155-year and for 60-year periods.

Źródło:

Prace i Studia Geograficzne; 2011, 47; 159-167
0208-4589

Pojawia się w:

Prace i Studia Geograficzne

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 21.

Tytuł:

Spatial and temporal variability of sea surface temperature in the Baltic Sea based on 32-years (1982–2013) of satellite data

Autorzy:

Stramska, M.
Bialogrodzka, J.

Powiązania:

https://bibliotekanauki.pl/articles/48273.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

satellite data
sea surface temperature
Baltic Sea
annual cycle
climate change
spatial variability
temporal variability

Źródło:

Oceanologia; 2015, 57, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 22.

Tytuł:

Comparison of direct and inverse methods of satellite observations downscaling for the coastal zone area

Autorzy:

Chybicki, A.
Łubniewski, Z.

Powiązania:

https://bibliotekanauki.pl/articles/331736.pdf

Data publikacji:

2016

Wydawca:

Polskie Towarzystwo Akustyczne

Tematy:

Earth observation
land surface temperature
sea surface temperature
PBIM downscaling method
surface effective emissivity

Opis:

The Earth observation satellite imaging systems have known limitations, especially regarding their spatial and temporal resolution. Therefore, approaches which aim to combine data retrieved from sensors of higher temporal and lower spatial resolution with the data characterized by lower temporal but higher spatial resolution are of high interest. This allows for joint utilization of the advantages of both these types of sensors. As there are several ways to achieve this goal, in this paper two approaches, direct and inverse, of downscaling the land surface temperature (LST) derived from low resolution imagery acquired by the Advanced Very High Resolution Radiometer (AVHRR) were evaluated. The applied downscaling methods utilize biophysical properties of the surface sensed using short wave infrared and thermal band. The presented algorithm evaluation was performed on the basis of a specific test case: the coastal zone area of the Gulf of Gdańsk, Poland. In this context, the objective presented in the study was to compare two methods of downscaling for a specific test case in order to evaluate how the proposed approaches cope with the specific conditions of the coastal zone area.

Źródło:

Hydroacoustics; 2016, 19; 55-64
1642-1817

Pojawia się w:

Hydroacoustics

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

Summer distribution patterns of Trichodesmium spp. in the Changjiang (Yangtze River) Estuary and adjacent East China Sea shelf

Autorzy:

Jiang, Z.
Chen, J.
Zhou, F.
Zhai, H.
Zhang, D.
Yan, X.

Powiązania:

https://bibliotekanauki.pl/articles/47907.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Trichodesmium
Yangtze River
estuary
China Sea
trichome
biogeochemistry
environment parameter
sea surface temperature
salinity

Opis:

To examine the distribution of Trichodesmium relative to physicochemical factors during summer in the Changjiang (Yangtze River) Estuary and adjacent East China Sea shelf, three cruises were conducted separately in June 2009, July 2011, and August 2009. Trichodesmium species found were T. thiebautii, T. erythraeum, and T. hildebrandtii. The population was dominated by T. thiebautii, which accounted for >85% of the samples found. Most of them were free trichomes. Colonial forms were rarely observed (approximately 10% of our samples), occurring only in offshore waters. The depth integrated abundances of Trichodesmium were 308 × 103, 1709 × 103, and 3448 × 103 trichomes m−2 in June, July, and August, respectively. Trichodesmium was distributed abundantly in the southern or southeastern part of our study area, where nutrients were low and light penetration, temperature, and salinity were high, which were influenced by the Taiwan Warm Current (TWC) and Kuroshio. Trichodesmium was found in low abundance in inshore, eutrophic, low-salinity waters, which were mainly controlled by the Changjiang Diluted Water (CDW) and coastal current. These results suggest that spatiotemporal changes in the summer Trichodesmium distribution correlate highly with the variations in physicochemical properties that are primarily controlled by the TWC, Kuroshio, and CDW. The summer N2 fixation rate of Trichodesmium was estimated at 12.3 μmol N m−2 d−1 in our study area, contributing >50% of biological N2 fixation.

Źródło:

Oceanologia; 2017, 59, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 24.

Tytuł:

Variability in fish catch rates associated with Sea Surface Temperature Anomaly (Niño 3.4 index) in the West of Java Sea

Autorzy:

Syamsuddin, Mega
Sunarto, Sunarto
Yuliadi, Lintang
Harahap, Syawaludin

Powiązania:

https://bibliotekanauki.pl/articles/1076099.pdf

Data publikacji:

2019

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Catch rates
El Niño
Java Sea
La Niña
oceanographic conditions

Opis:

The remotely derived oceanographic variables included sea surface height anomaly (SSHA), sea surface temperature (SST), chlorophyll-a (Chl a) and fish catches are used as a combined dataset to understand the ocean climate variability and further addresses their relations with the fish catches in the West-Java Sea. Fish catches and remotely sensed data are analyzed for the 5 years datasets from 2010-2014 and emphasized the differences of climate conditions during El Niño Southern Oscillation (ENSO) events. Here, we demonstrate the prominent annual variation of two species small pelagic fish catches (Euthynus affinis and Scomberomorus commerson) and one demersal species (Netuma thallasina) as representative of dominant catch in the region. Small pelagic catches had significant increment during El Niño compared to during La Niña events. Changes in oceanographic conditions during ENSO events resulted in perceivable variations in catches, with an average catches of 839.6 t (E. affinis) and 273,7 t (S. commerson) during El Niño. During La Niña event catch rates were reduced with an average catches of 602.6 t (E. affinis) and 210.3 t (S. commerson). During the La Niña event was less favorable for small pelagic catches. In contrast, N. thallasina does not seem to be directly affected by the ENSO. The average catches of N. thallasina during El Niño (182.17 t) lower than during La Niña (250.14 t). This inferred that different climate events might cause different oceanographic conditions that related to fish biodiversity. Our results would benefit the fish biodiversity-management to reduce risks due to climate regimes.

Źródło:

World Scientific News; 2019, 117; 175-182
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 25.

Tytuł:

Zlodzenie Hornsundu i wód przyległych (Spitsbergen) w sezonie zimowym 2010-2011
Ice conditions in Hornsund and adjacent waters (Spitsbergen) during winter season 2010-2011

Autorzy:

Kruszewski, G.

Powiązania:

https://bibliotekanauki.pl/articles/260971.pdf

Data publikacji:

2012

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

lód morski
temperatura wody morskiej
Hornsund
Spitsbergen
sea ice
ice season
sea surface temperature

Opis:

Sezon lodowy 2010/2011 zaczął się w połowie października. Pierwsze postacie autochtonicz-nego lodu morskiego zaobserwowano w strefie brzegowej Isbjornhamny 15.10. po spadku dobowej temperatury powietrza poniżej poziomu temperatury zamarzania wody morskiej. Zbliżone do średnich wieloletnich wartości temperatury powietrza okresu listopad – styczeń sprzyjały tworzeniu się lodu w strefie brzegowej Hornsundu. Lód morski o zwartości do 4/10 pojawił się w Hornsundzie w końcu października i utrzymywał w listopadzie. Prze-bieg warunków lodowych w rejonie południowego Spitsbergenu – zbliżony do normalnego z wielolecia – umoż-liwiał napływ lodu do fiordu z zewnątrz od połowy grudnia. W tym też okresie w wewnętrznych partiach fiordu zaczął się formować lód stały brzegowy, którego pokrywa w sposób ciągły występowała w N części Brepollen do końca drugiej dekady lipca 2011 (około 7 miesięcy). W okresie maksymalnego rozwoju (druga dekada lutego) lód stały lub całkowicie zwarty pokrywał około 2/3 powierzchni fiordu.
This paper presents the ice conditions in the Hornsund Fjord (Svalbard) during expedition season 2010/2011. Sea ice season started in the mid of October, after clear air temperature drop (Fig. 2). Since this time forms of locally formed ice were present, mainly in coastal zone. To the end of November concentration of ice did not exceed 4/10 (very open drift ice). Close to mean thermal conditions in Hornsund area during winter months (Fig.1, Tab. 1) were favourable for ice development in this region. Theoretical sea ice thickness at the end of the Year 2010 could reach about 50 cm, and close to 1 m at the end of ice season. Close and very close pack ice (7-10/10) drifting outside the fjord were present since December (Fig. 7). Easternmost inner part of the Hornsund was covered by fast (consolidated) ice since mid of December to the mid of July 2011. During its maximum development in February fast ice covered over 70% of Hornsund area. Close and very close pack ice were present at Hornsund waters in January, February, three weeks of March, second half of April and first week of May – all together over three and half months. Periods of time with smaller ice concentration were connected with strong easterly air circulation. In May and June ice concentration in SW Svalbard area decrease significantly. Last two episodes the very close ice pack flowed into the Hornsund took place in first days and in second half of July 2011 (Fig. 8).

Źródło:

Problemy Klimatologii Polarnej; 2012, 22; 69-82
1234-0715

Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 26.

Tytuł:

Zlodzenie Hornsundu i jego przedpola (SW Spitsbergen) w sezonie zimowym 2007/2008
Ice conditions in Hornsund and its foreshore (SW Spitsbergen) during winter season 2007/2008

Autorzy:

Styszyńska, A.

Powiązania:

https://bibliotekanauki.pl/articles/260675.pdf

Data publikacji:

2009

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

lód morski
sezon lodowy
temperatura wody morskiej
Hornsund
Spitsbergen
sea ice
sea surface temperature

Opis:

W sezonie zimowym 2007/2008 przebieg zlodzenia Hornsundu był odmienny od przeciętnego. Od października do lutego średnia miesięczna temperatura powietrza była o 2,6–6,1 deg wyższa, a w marcu o 2,5 deg niższa od średniej klimatycznej (1978-2006). Ujemna temperatura wody powierzchniowej przy brzegu Isbjorn-hamny występowała od 29 X 2007 do 20 V 2008 r. Najniższe (–1,9°C) wartości temperatury wody mierzono od trzeciej dekady listopada 2007 r. do końca kwietnia 2008 r. Latem i jesienią (VIII-X) 2007 r. dochodziło do inten-sywnego obłamywania się lodu lodowcowego, który okresowo tworzył zwarte skupienia growlerów i gruzu lodow-cowego wzdłuż brzegu. W Isbjornhamnie pierwszy okres tworzenia się lodu morskiego miał miejsce między 31 października a 12 grudnia 2007 r. (lepa lodowa, krążki lodowe), drugi – od 26 grudnia 2007 r. do 22 maja 2008 r. Na przedpolu Hornsundu dryfujący lód allochtoniczny pojawił się w pierwszych dniach grudnia 2007 r. Od połowy lutego do trzeciej dekady kwietnia prawie cała powierzchnia Hornsundu pokryta była lodem dryfującym o zmiennej zwartości. Na osiowej partii fiordu lód autochtoniczny zanikł po 28 kwietnia 2008 r. Maksymalna wysokość wału lodu nabrzegowego w Isbjornhamnie osiągnęła 2,5 m.
This article presents the development of sea ice cover in the waters of central and western part of the Hornsund Fjord, as well as in its foreshore during winter season 2007-2008. Due to long lasting (November-February) high air temperatures (Fig. 2-3) the sea ice cover development of Hornsund was different from the average one. Significant decrease in air temperature was observed in March (mean monthly –13.4°C) and April (mean monthly –9.3°C). In such thermal conditions the maximum thickness of sea ice which might have been formed in the outer, sheltered from high seas areas of the fjord, estimated with the help of Zubov formula, could reach 41cm in January, 52cm in February, 71cm in March, up to 82–84cm in the period from April to May 2008 (Tab. 1). In summer and autumn (August-October) 2007 only brash glacier ice and small icebergs broken off the glaciers endings on the sea in Hornsund drifted in the waters of the fjord. At this time brash glacier ice and growlers broken off the Hans Glacier periodically concentrated densely along the coast of Isbjorhamna. The first forms of new ice (slush and grease ice as well as shuga) were observed close to the west coast of Isbjornhamna from 31th October till 12rd December (Fig. 8). The second period of sea ice formation started on 26th December. Not sooner than in the middle of March when severe frost was noted, a permanent ice cover was formed (young ice). Fast ice was only observed in the internal waters of Hornsund, in the Brepollen, Burgerbukta, Samarinvagen, Adria and Isbjornhamna bays. From the first decade of February till the 3th July the ice cover of Hornsund experienced large fluctuations (Fig. 11-12, 14-17). During that period the entire area of Hornsund was covered with sea ice a few times. The first this phenomenon was noted from 7th till 20th February 2008 when the allochtonic ice drifting in the waters of the Sorkapp Current entered western and central part of the fjord and when the central and inner parts were covered with ice formed in situ (Fig. 11-12). The second this phenomenon was noted from the third decade of March till the end of April when the all surface of Hornsund were covered autochthonous ice. On the western and central part of the fjord this was young ice and nilas. In the internal waters of Hornsund was observed first-year ice (Fig. 14-15). This sea ice cover was several times destroyed by very strong east winds causing that most of ice was moved outside the fjord. At the end of April strong E and SE winds caused ice removal from the axial part of Hornsund. Later, apart from three short episodes (5-8 May, 15-22 May and 1-9 July) when strips of allochtonic ice entered west and central part of the fjord (Fig. 16-17), only single floes of broken-off the fast ice from Brepollen, Burgerbukta and Samarinvagen drifted in the waters of Hornsund. The ice season 2007-2008 ended on 9th July when the last floes of very rotten ice were observed drifting from the inside of the fjord with the tidal stream to its foreshore.

Źródło:

Problemy Klimatologii Polarnej; 2009, 19; 247-267
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Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 27.

Tytuł:

Zmienność temperatury powierzchni morza w rejonie Spitsbergenu (1982-2002) jako przejaw współcześnie zachodzących zmian klimatycznych
Changeability in sea surface temperature in the region of Spitsbergen (1982-2002) reflecting climatic changes observed at present

Autorzy:

Kruszewski, G.

Powiązania:

https://bibliotekanauki.pl/articles/260692.pdf

Data publikacji:

2004

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

temperatury powierzchni morza
zmiany klimatyczne
Spitsbergen
temperatury powietrza
sea surface temperature
climatic changes
air temperature

Opis:

This work has analysed changeability in water surface temperature in sea areas in the direct vicinity of West Spitsbergen. (Fig. 1). The analysis made use of SST (Sea Surface Temperature) from Reynolds?s data, covering mean monthly values of grids 1 x 1° from the period 1982-2002 (21 years). The changes in SST have been examined both monthly and yearly in 48 grids originating from the region 76-80°N, 006-020°E. A noticeable increase in water temperature was noted in the entire analysed area. The highest positive annual trends in water temperature were noted in the region 77-78°N, 006-007°E located west of Spitsbergen. In this area the mean yearly trends in SST values exceed +0.11°C/year and are highly statistically relevant (p<0.001). The values of trend noted in the areas in the direct vicinity of SW coast of Spitsbergen are +0.07°C to +0.08°C/year (at the latitudes 76-78°N). Farther north the values of the trend are remarkably lower, yet they are still highly statistically relevant. At 80°N the SST trend ranges from +0.006°C to +0.013°C and grows when moving west. At 79°N the observed trend of mean yearly value of SST is within the range from +0.04°C (010°E) to +0.07°C/year (006°E). This indicates that the mean yearly temperature of water in the region west of Spitsbergen has increased by more than 2.5°C over the period of the last 21 years and in coastal waters SW of Spitsbergen by about 1.5°C to 1.7°C. The lowest increase in SST was noted in waters at 80°N, where it did not exceed 0.3°C within 21 years. The increase in water temperature is distributed unevenly in time - since 1995 the rate of the increase has been rapidly growing (see Fig. 2). The changes in yearly SST values, as the analysis indicated, are influenced by the changes in temperature noted mainly in the period from September to February. This proves that the heat sources carried by the West Spitsbergen Current are increasing and that the summer warming of waters is becoming more and more significant. Interannual changeability in SST in the remaining months proves to be relatively low, in extreme cases being zero (water completely frozen). It can be observed especially at 80°N. The yearly changeability in values of SST in waters around SE coasts of Spitsbergen (Storfjorden) is mainly influenced by the temperature of waters in autumn (August ? October), which means that the influence of the summer warming of waters on the yearly SST value in this area has increased.

Źródło:

Problemy Klimatologii Polarnej; 2004, 14; 79-86
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Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 28.

Tytuł:

Climatic change on King George Island in the years 1948–2011

Autorzy:

Kejna, Marek
Araźny, Andrzej
Sobota, Ireneusz

Powiązania:

https://bibliotekanauki.pl/articles/2051395.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

Antarctic
South Shetland Islands
climate
air temperature
air pressure
pre−cipitation
sea surface temperature
sea−ice

Źródło:

Polish Polar Research; 2013, 2; 213-235
0138-0338
2081-8262

Pojawia się w:

Polish Polar Research

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 29.

Tytuł:

Wpływ zmian temperatury wód w głównym nurcie Prądu Zachodniospitsbergeńskiego na temperaturę powietrza na Spitsbergenie Zachodnim (1982-2002)
The influence of the changes in sea surface temperature in the West Spitsbergen Current on the air temperature at West Spitsbergen (1982-2002)

Autorzy:

Kruszewski, G.

Powiązania:

https://bibliotekanauki.pl/articles/260635.pdf

Data publikacji:

2005

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

temperatura powierzchni oceanu
Prąd Zachodniospitsbergeński
temperatura powietrza
Spitsbergen
air temperature
West Spitsbergen Current
sea surface temperature

Opis:

Praca omawia związki temperatury powietrza na trzech stacjach Spitsbergenu Zachodniego z temperaturą wody powierzchniowej na akwenach położonych po zachodniej stronie wyspy - w nurcie Prądu Zachodniospitsbergeńskiego. Przeprowadzona analiza korelacji ciągów temperatury wody i powietrza wykazała istnienie między nimi istotnych statystycznie związków. Najwyższe współczynniki korelacji (osiągające nawet wartość +0.80) występują w okresie jesieni - między wartościami temperatury powietrza i wody z tego samego miesiąca. Związki pomiędzy roczną temperaturą powietrza a miesięcznymi wartościami temperatury wody są tylko nieznacznie słabsze. W niektórych przypadkach zmiany miesięcznej temperatury powierzchni wody objaśniają ponad 40% zmienności rocznej temperatury powietrza na Spitsbergenie.
This work deals with correlations between SST in the West Spitsbergen Current and air temperature at Spitsbergen (Hornsund, Svalbard-Lufthavn and Ny Alesund). The strongest correlations SST with air temperature have been found in the southern part of the West Spitsbergen Current. In grid [76, 14] synchronic correlations (SST & air temperature in the same month) are strongest and most frequent, occurring in fall and winter months at all three stations (table 1). Correlations in summer months are strong only with closest station at Hornsund (r = 0.67 in July), and decrease with distance to the station. Synchronic correlations between monthly air temperature and SST in next two grids are less frequent and weaker. In [77, 10] grid statistically significant synchronic correlations are limited to fall and winter months and in [78, 06] grid occur in November only (see table 2 & 3). Correlations between monthly SST and annual air temperature are strongest for October, November and December in [76, 14] grid, and coefficients of correlation are very close for all three stations and months (0.62 < r < 0.70) - see Fig. 5. Interesting correlation occur between SST in April and May and annual air temperature values at Spitsbergen, especially strong at Ny Alesund and SST in May in [77, 10] grid (r = 0.66). The changeability of SST in this area in May explains from 31% (Hornsund) to 41% (Ny Alesund) of changeability in annual air temperature at Spitsbergen.

Źródło:

Problemy Klimatologii Polarnej; 2005, 15; 53-63
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Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 30.

Tytuł:

Zlodzenie Hornsundu (Spitsbergen) w sezonie zimowym 2008/2009
Ice conditions in Hornsund (Spitsbergen) during winter season 2008-2009

Autorzy:

Kruszewski, G.

Powiązania:

https://bibliotekanauki.pl/articles/261047.pdf

Data publikacji:

2010

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

lód morski
sezon lodowy
temperatura wody morskiej
Hornsund
Spitsbergen
sea ice
ice season
sea surface temperature

Opis:

Sezon lodowy 2008/2009 zaczął się w trzeciej dekadzie października, przy czym spadki temperatury powietrza poniżej zera notowano od końca września. Na wodach fiordu w okresie lipiec – wrzesień odnotowywano jedynie postacie lodu lodowcowego. Dopiero spadki temperatury w listopadzie umożliwiły two-rzenie się lodu autochtonicznego w strefie brzegowej. W tym samym czasie do fiordu zaczął okresowo napływać także lód dryfujący z Prądem Sorkapskim. Pokrycie fiordu lodem o dużej zwartości wystąpiło w kilku epizodach, przerywanych kilkudniowymi aktami przynajmniej częściowego odpływania lodu z Hornsundu. Zwarty i bardzo zwarty lód występowała na praktycznie całej powierzchni fiordu w drugiej dekadzie grudnia, pierwszej i drugiej stycznia, lutym, marcu, pierwszej połowie kwietnia i przez kilka dni w maju. Stała pokrywa lodowa utworzyła się poza Isbjornhamną jedynie w skrajnie wschodniej części fiordu, gdzie pod Brepollen przetrwała do pierwszych dni lipca.
This paper presents the sea ice development in the waters of Hornsund Fjord during winter season 2008/2009. In autumn 2008 only brash glacier ice, growlers and bergy bits were present in Hornsund, especially along the coast. Sea ice season started at end of October. Since this time forms of new ice were formed in coastal zone of Isbjornhamna. Because of mild thermal conditions in November and December (Fig. 2, 3) the maximum theoretical ice thickness in inner parts of the fjord could reach 43 cm at the end of the year 2008 (Table 1). In January young coastal ice was formed in Isbjornhamna. Consolidation of close pack ice coming from outside the Hornsund was interrupted few times by increase in air temperature and strong easterly winds, blowing the ice outside again. In the inner bays consolidation of pack ice started probably at end of February. Eastern part of the Hornsund was covered by fast ice since mid of March to the end of June 2009 (Brepollen, Samarinvagen). For over 16 weeks close and very close young pack ice drifted in the Hornsund waters. At the end of April ice concentration in fjord and outside decrease significantly and part of fast ice was broken and removed too. Last episode the Hornsund was covered by very close pack ice drifting from outside took place from 15th till 25th May.

Źródło:

Problemy Klimatologii Polarnej; 2010, 20; 187-196
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Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 31.

Tytuł:

Zlodzenie Hornsundu (Spitsbergen) w sezonie zimowym 2009-2010 (SW Spitsbergen)
Ice conditions in Hornsund (Spitsbergen) during winter season 2009-2010 (SW Spitsbergen

Autorzy:

Kruszewski, G.

Powiązania:

https://bibliotekanauki.pl/articles/260995.pdf

Data publikacji:

2011

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

lód morski
sezon lodowy
temperatura wody morskiej
Hornsund
Spitsbergen
sea ice
ice season
sea surface temperature

Opis:

Sezon lodowy 2009/2010 zaczął się pod koniec października. Pierwsze postacie autochtonicznego lodu morskiego zaobserwowano w strefie brzegowej Isbjornhamny dopiero 26 października. Spadki dobowej temperatury powietrza poniżej zera sporadycznie notowano od połowy września, jednak dopiero w końcu października obniżyła się ona do poziomu temperatury zamarzania wody morskiej. Wyraźnie wyższe od średnich wieloletnich wartości temperatury powietrza okresu październik - luty nie sprzyjały tworzeniu się lodu. Wyjątkowo łagodne warunki lodowe w rejonie południowego Spitsbergenu uniemożliwiały napływ lodu z zewnątrz aż do początków stycznia 2010. Lód morski o większej zwartości pojawił się w Hornsundzie w zasadzie dopiero po wyraźnym spadku temperatury w marcu. Dochodziło wtedy do całkowitego pokrycia fiordu lodem, włącznie z tworzeniem się w zatokach wewnętrznych lodu stałego. Pokrywa lodu stałego utrzymywała się we wschodniej części fiordu, w fazie maksymalnego rozwoju (od połowy marca do połowy kwietnia) pokrywając od połowy do blisko całej jego powierzchni. W skrajnie wschodniej partii fiordu pod Brepollen przetrwała do końca czerwca.
This article presents the sea ice development in the waters of Hornsund Fjord during winter season 2009/2010. Due to long lasting (November-February) high air temperatures (Fig. 1-2) during autumn 2009 mainly brash glacier ice, growlers and bergy bits were present in Hornsund, especially along the coast. Since end of October forms of new ice were observed in coastal zone of Isbjornhamna. In beginning of January first allochtonic drifting ice entered western part of the fjord. First in situ formed pancake ice was observed in coastal zone in February (Fig. 4). During this month young coastal ice was formed in inner bays of the fjord. Significant decrease in air temperature observed in March was connected with ice development (Fig. 5) on whole fjord area. In eastern part the 'autochtonic' fast ice was formed, in western consolidation of drifting ice occurred. The whole area of Hornsund was covered with fast ice for about two weeks. In eastern part of the fjord (Brepollen, Burgerbukta, Samarinvagen) fast ice existed even in June, with maximum thickness 70-80 cm. Last forms of fast ice was destroyed in first days of July in NE part of Brepollen. In April and May close pack ice drifting outside the Hornsund entered few times the central parts of the fjord, but because of mild temperature conditions consolidation did not start. Usually concentration of ice in central part of the fjord was smaller than outside and do not exceed 4-6/10 (open drift), because of prevailing easterly winds, blowing the ice outside. Such a situation existed since end of March for next six weeks. The last short episode the strips of allochtonic ice entered central part of the fjord took place in beginning of May (Fig. 7).

Źródło:

Problemy Klimatologii Polarnej; 2011, 21; 229-239
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Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 32.

Tytuł:

Zmiany temperatury powierzchni Morza Barentsa w latach 1951-2006
Changes in the sea surface temperature of the Barents Sea in the years 1951-2006

Autorzy:

Zblewski, S.

Powiązania:

https://bibliotekanauki.pl/articles/260773.pdf

Data publikacji:

2007

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

temperatura powierzchni morza
NAO
Morze Barentsa
Prąd Zachodniospitsbergeński
Prąd Nordkapski
sea surface temperature
Barents Sea
West Spitsbergen Current
North Cape Current

Opis:

Praca charakteryzuje zmiany temperatury powierzchni Morza Barentsa (TPM) zachodzące w okresie 1951–2006. Stwierdzono występowanie słabych, dodatnich i istotnych statystycznie trendów TPM w gridach leżących poza obszarem bezpośredniego oddziaływania ciepłych prądów morskich. Odnotowano słaby i nierównomiernie rozłożony w przestrzeni wzrost temperatury powierzchni morza – silniejszy we wschodniej części Morza Barentsa. W badanym okresie (1951–2006) na obserwowaną zmienność rocznej TPM znacznie silniejszy wpływ wywierają procesy oceaniczne niż zmienność zimowej cyrkulacji atmosferycznej.
The aim of this work was to analyse monthly and annual values of sea surface temperatures of the Barents Sea in the years covering the period from 1951 up to 2006 averaged to chosen grids 2x2° (Fig. 1).The analysis showed that in the course of SST a clearly marked period (1976–1988) of significant decrease in annual values of water temperature was noted, with the minimum observed in 1980 (Fig. 2). This phenomenon is connected with Great Salinity Anomaly.The research showed that the general decrease in annual SST takes place towards north-east and at the same time, following the same direction, the increase in amplitude of inter-annual changes can be observed (Fig. 3). ‘The warm sources of the North Cape Current and West Spitsbergen Current moving away and the transfer of heat from the ocean to the atmosphere are the cause of this situation. This significant drop in annual sea surface temperature in the NE part of the Barents Sea is also influenced by flows of cold and fresh Surface Arctic Waters from the Arctic and Kara seas. There were also great differences observed in the course of annual SST in the western and eastern parts of the examined sea area. (Fig.4). In the eastern part rapid falls in water temperature can be noted by even 0.7°C from year to year. They result from the sea ice spreading and Surface Arctic Waters from the Kara Sea and from the north region of the Barents Sea which cut off the flow of heat from the deeper parts of the sea towards the surface and to the atmosphere.In the examined period weak positive trends in the annual sea surface temperature were observed and they are statistically significant in almost all grids (Tab.1). The strongest trends were noted in the east part of the examined sea area. Positive and statistically significant trends of the monthly SST are observed in summer and autumn in grids located farthest NE.The analysis showed that the influence of winter atmospheric circulation on the temperature of the sea surface is weak or rather moderate (Tab. 2) and that the observed changeability in annual sea surface temperature of the Barents Sea is mainly controlled by oceanic processes.

Źródło:

Problemy Klimatologii Polarnej; 2007, 17; 61-70
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Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 33.

Tytuł:

Modeling the ecosystem response to summer coastal upwelling in the Northern South China Sea

Autorzy:

Jiang, R.
Wang, Y.-S.

Powiązania:

https://bibliotekanauki.pl/articles/47804.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

nutrient
phytoplankton
zooplankton
ecosystem model
coastal upwelling
hydrographic condition
seasonal change
sea surface temperature
South China Sea

Opis:

A coupled three-dimensional physical model and a nitrogen-based nutrient, phytoplankton, zooplankton, and detritus (NPZD) ecosystem model were applied to simulate the summer coastal upwelling system over the continental shelf of northern South China Sea (NSCS) and its impact on hydrographic conditions and ecosystem. The simulated results were comprehensively validated against field and satellite measurements. The model results show that the near shore ecosystem of NSCS has significant responses to the summer coastal upwelling system. The Shantou Coast to the Nanri Islands of Fujian province (YD) and the east of the Leizhou Peninsula (QD) are two main regions affected by NSCS summer coast upwelling. During summer, these two coastal areas are characterized by nearshore cold and high salinity upwelling current. Further, the summer coastal upwelling serves as a perfect nutrient pump, which lifts up and advects nutrient-rich current from deep to surface, from inner shelf to about 30 km outer shelf. This nutrient source reaches its maximum in the middle of July and then begins to decrease. However, the maximum phytoplankton and chlorophyll a do not coincide with the maximum nutrients and delay for about 10 days. Because of the intensive seasonal thermocline and the complicated current transporting through Qiongzhou strait, the ecological responding of QD is less pronounced than YD. This study has a better understanding of the physically modulated ecological responses to the NSCS summer coastal upwelling system.

Źródło:

Oceanologia; 2018, 60, 1
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 34.

Tytuł:

Dynamic features of successive upwelling events in the Baltic Sea - a numerical case study

Autorzy:

Myrberg, K.
Andrejev, O.
Lehmann, A.

Powiązania:

https://bibliotekanauki.pl/articles/48404.pdf

Data publikacji:

2010

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Baltic Sea
Hel Peninsula
numerical modelling
coastal upwelling
thermal stratification
sea surface temperature
water column
Polish coast

Opis:

Coastal upwelling often reveals itself during the thermal stratification season as an abrupt sea surface temperature (SST) drop. Its intensity depends not only on the magnitude of an upwelling-favourable wind impulse but also on the temperature stratification of the water column during the initial stage of the event. When a ‘chain’ of upwelling events is taking place, one event may play a part in forming the initial stratification for the next one; consequently, SST may drop significantly even with a reduced wind impulse. Two upwelling events were simulated on the Polish coast in August 1996 using a three-dimensional, baroclinic prognostic model. The model results proved to be in good agreement with in situ observations and satellite data. Comparison of the simulated upwelling events show that the first one required a wind impulse of 28 000 kg m−1 s−1 to reach its mature, full form, whereas an impulse of only 7500 kg m−1 s−1 was sufficient to bring about a significant drop in SST at the end of the second event. In practical applications like operational modelling, the initial stratification conditions prior to an upwelling event should be described with care in order to be able to simulate the coming event with very good accuracy.

Źródło:

Oceanologia; 2010, 52, 1; 77-99
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 35.

Tytuł:

Upwelling dynamics in the Baltic Sea studied by a combined SAR-infrared satellite data and circulation model analysis

Autorzy:

Gurova, E.
Lehmann, A.
Ivanov, A.

Powiązania:

https://bibliotekanauki.pl/articles/48338.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Baltic Sea
coastal upwelling
MODIS satellite image
circulation model
synthetic aperture radar
sea surface temperature
wind stress

Źródło:

Oceanologia; 2013, 55, 3
0078-3234

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Oceanologia

Dostawca treści:

Biblioteka Nauki

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Tytuł:

Prędkość wiatru w rejonie Svalbardu w świetle zmian warunków cyrkulacyjnych i środowiskowych
Surface wind speed in Svalbard area in relation to circulation and environmental changes

Autorzy:

Kruszewski, G.

Powiązania:

https://bibliotekanauki.pl/articles/261013.pdf

Data publikacji:

2010

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

Svalbard
prędkość wiatru
cyrkulacja atmosferyczna
temperatura powierzchni morza
wind speed
atmospheric circulation
sea surface temperature
correlations

Opis:

Praca charakteryzuje związki prędkości wiatru w dwunastu punktach gridowych z rejonu Svalbardu z ciśnieniem atmosferycznym, wybranymi wskaźnikami cyrkulacyjnymi i temperaturą powierzchni morza w okresie 1950-2009. Związki synchroniczne średniej rocznej i sezonowych prędkości wiatru z ciśnieniem atmosferycznym w tych samych punktach (korelacje ujemne) są zmienne w przestrzeni (silniejsze na północy) i niestabilne w czasie (słabsze w ostatnich 30. latach). Podobnie istotne korelacje prędkości wiatru ze wskaźnikiem cyrkulacji „C” Niedźwiedzia dla Spitsbergenu najliczniej występują zimą i wykazują „przesuwanie się” w czasie z północy na południe badanego obszaru. W ostatnich 30. latach odnotowano także bardzo silne związki zimowej wartości wskaźnika „S” z prędkością wiatru – najwyraźniejsze w NE części Svalbardu. W tym samym rejonie najsilniej zaznaczają się także związki rocznej prędkości wiatru z temperaturą morza.
This paper deals with correlations between surface wind speed in Svalbard area and chosen environmental factors (atmospheric pressure, circulation indices, sea surface temperature). Gridded surface data from NCEP Reanalysis Derived data provided by the NOAA/OAR/ESRL PSD, Boulder Colorado from their Web site at http://www.cdc.noaa.gov/ (wind speed and air pressure), SST from NOAA NCDC ERSST v.2, AO and Nied.wied. (2006) circulation indices were used to statistical analysis over the period 1950-2009. Mean values and linear trend coefficients of wind speed in chosen grid points are in Table 1. The highest trend values are present in northern part of Svalbard in last 30 years. Linear correlation coefficients between wind speed and SLP in same grid points are strongest in northern part too, but correlations are not stable in time (Table 2, 3 and 4). Correlations between wind speed and AO index (monthly values) are week and in most cases statistically insignificant. Significant correlations are frequent between wind speed and C and S indices for winter and annual values (Table 5 and 6). Wind speed during winter in latitudes 80 and 82.5°N in last 29-year period show strong positive correlation with frequency of southern circulation S, which explains from 26 to 60% changeability of wind speed in years 1980-2009. Some correlations between wind speed and SST from grids 2°[fi] x 2°[lambda], situated in same area were found too. The highest coefficients of annual values were found in north of investigated area (wind speed in [82,5; 20] and SST in area between 81 to 83°N, and 19 to 21°E, r = +0,64) . see Fig. 2. In last 30 years significant correlations of this kind were found in NE area of interest (Fig. 3). This is probably connected with changes of the ice edge positions during last years (retreat of sea ice) in the region situated N and NE from Svalbard (Rodrigues 2009).

Źródło:

Problemy Klimatologii Polarnej; 2010, 20; 31-44
1234-0715

Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 37.

Tytuł:

Spatio-temporal variability of the phytoplankton biomass in the Levantine basin between 2002 and 2015 using MODIS products

Autorzy:

El Hourany, R.
Fadel, A.
Gemayel, E.
Abboud-Abi Saab, M.
Faour, G.

Powiązania:

https://bibliotekanauki.pl/articles/48550.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

spatio-temporal variability
phytoplankton biomass
remote sensing
sea surface temperature
chlorophyll a concentration
phytoplankton bloom
Mediterranean Sea

Opis:

The Levantine basin in the Eastern Mediterranean Sea is subject to spatial and seasonal variations in primary production and physical-chemical properties both on a short and long-term basis. In this study, the monthly means of daily MODIS product images were averaged between 2002 and 2015, and used to characterize the phytoplankton blooms in different bioregions of the Levantine basin. The selected products were the sea surface temperature (SST), the chlorophyll-a concentration (Chl-a), the diffuse attenuation coefficient for downwelling irradiance at 490 nm (Kd_490) and the colored dissolved organic matter index (CDOM_ index). Our results showed that phytoplankton blooms were spatially and temporally variable. They occurred in late autumn at the Nile Delta, in early spring and late summer at the eastern coastline, and in spring at the northeastern coastline. The northern coastline and the open water had a common bloom occurring in winter. The Nile Delta was found to be the most productive area of the Levantine basin showing high Chl-a. Kd_490 and Chl-a present a parallel co-variation indicating a dominance of Case 1 waters in the Levantine basin. The CDOM_index shows a phase shift with the Chl-a fluctuation. A strong inverse correlation was observed between both Chl-a and CDOM_index with SST, connoting an indirect relation represented by a depression of CDOM in summer by photobleaching, and a suppression of the chlorophyll-a concentration due to water stratification, together with nutrient stress. An overestimation of the Chl-a values had been signaled by the use of the CDOM_index, suggesting a correction plan in a latter study.

Źródło:

Oceanologia; 2017, 59, 2
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 38.

Tytuł:

A statistical approach to coastal upwelling in the Baltic Sea based on the analysis of satellite data for 1990–2009

Autorzy:

Lehmann, A.
Myrberg, K.
Hoflich, K.

Powiązania:

https://bibliotekanauki.pl/articles/49090.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Baltic Sea
coastal upwelling
sea surface temperature
statistical analysis
numerical model
1990-2009 period
meteorological data
satellite data

Opis:

A statistical analysis of Baltic Sea upwelling has been carried out to cover, for the first time, the entire sea area for the period 1990–2009. Weekly composite SST maps based on NOAA/AVHRR satellite data were used to evaluate the location and frequency of upwelling. The results obtained were analysed and compared with earlier studies with excellent agreement. Our study enables the most intense upwelling areas in the entire Baltic Sea to be evaluated. According to the analysis of 443 SST maps, the most common upwelling regions are found off the Swedish south and east coasts (frequency 10–25%), the Swedish coast of the Bothnian Bay (16%), the southern tip of Gotland (up to 15%), and the Finnish coast of the Gulf of Finland (up to 15%). Pronounced upwelling also occurs off the Estonian coast and the Baltic east coast (up to 15%), the Polish coast and the west coast of Rugen (10–15%); otherwise the upwelling frequency was between 5 and 10%. Additionally, simulated SST distributions derived from a Baltic Sea numerical model were analysed for the same period. Furthermore, at specific positions close to the coastline, surface winds based on the SMHI meteorological data base were analysed for the same 20-year period. Wind components parallel to the coast were discriminated into favourable and unfavourable winds forcing upwelling. The obtained frequencies of upwelling-favourable winds fit very well the observed upwelling frequencies derived from satellite SST maps. A positive trend of upwelling frequencies along the Swedish east coast and the Finnish coast of the Gulf of Finland was calculated for the period 1990–2009.

Źródło:

Oceanologia; 2012, 54, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 39.

Tytuł:

Characterization of the Northern Red Seas oceanic features with remote sensing data and outputs from a global circulation model

Autorzy:

Eladawy, A.
Nadaoka, K.
Negm, A.
Abdel-Fattah, S.
Hanafy, M.
Shaltout, M.

Powiązania:

https://bibliotekanauki.pl/articles/48367.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Red Sea
sea surface temperature
air-sea interaction
wind
atmospheric parameter
remote sensing
chlorophyll a
principal component analysis

Opis:

Sea surface temperature (SST) and surface wind (SW) are considered the most important components in air—sea interactions. This study examines the relationships between SST, SW and various oceanic variables in the northern Red Sea (NRS) during the period of 2000— 2014. The current study is the first attempt to identify the SST fronts and their relationship with the dominant circulation patterns. SST fronts are mapped using the Cayula and Cornillon algorithms. The analysis is performed with available remote sensing and reanalyzed data together with 1/128 HYbrid Coordinate Ocean Model (HYCOM) outputs. Seasonal-trend decomposition procedure based on loess (STL) is applied for trend analysis, and Principal Component Analysis (PCA) is run for the atmospheric parameters. The SST, SW speed and Chlorophyll-a (Chl-a) changes show insignificant trends during the period of 2000—2014. Meridional SST fronts are more significant during the month of January, and fronts that are perpendicular to the sea's axis occur from February to May. Distinct monthly and spatial variations are present in all the examined parameters, although these variations are less pronounced for the wind direction. The SST is mainly controlled by the air temperature and sea level pressure. Significant correlations exist between the SSTand the studied parameters (alongshore wind stress rather than the cross-shore wind stress, surface circulation, MLD, and Chl-a). Surface winds generally flow southeastward parallel to the Red Sea's axis explaining that alongshore wind stress is highly correlated with the studied parameters.

Źródło:

Oceanologia; 2017, 59, 3
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 40.

Tytuł:

Microplankton size structure induced by a warm-core eddy in the Western Bay of Bengal: Role of Trichodesmium abundance

Autorzy:

Chinnadurai, K.
Retnamma, J.
Nagarathinam, A.
Subramanian, P.R.
Singaram, P.
Shoba, S.

Powiązania:

https://bibliotekanauki.pl/articles/2078908.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

microplankton
size structure
biomass
Trichodesmium
sea surface temperature
wind
sea level
geostrophic current circulation
chlorophyll a
Bengal Bay

Opis:

Mesoscale warm-core eddies are common in the Bay of Bengal (BoB), and this study in the western BoB during Pre-Southwest Monsoon (April 2015) presents how a prolonged warmcore core eddy could modify the microplankton biomass and size structure. To investigate this, field sampling and laboratory analyses were augmented with satellite data sets of sea surface temperature (SST), winds, mean sea level anomaly (MSLA), geostrophic currents and chlorophyll-a. High SST with positive MSLA (≥ 20 cm) and a clockwise circulation, represented the occurrence of a large warm-core eddy in the western BoB. Time series data evidenced that it was originated in the mid of March and persistent there till early June, which in turn caused a decrease in the surface nutrients and chlorophyll-a. The abundance and biomass of microplankton were negligible in the warm-core eddy region. FlowCAM data showed a significant decrease in the autotrophic microplankton parameters in the warm-core eddy (av. 13 ± 9 ind. L−1 and 0.1 ± 0.04 μgC L−1, respectively) as compared to the surrounding locations (av. 227 ± 143 ind. L−1 and 0.8 ± 0.5 μgC L−1, respectively). Low nutrients level in the warm core eddy region favoured high abundance of needle-shaped phytoplankton cells dominated by Trichodesmium cells. As a result, the size of micro-autotrophs in the warm-core eddy was larger (av. 91,760 ± 12,902 μm3 ind.−1) than its outside (av. 50,115 ± 21,578 μm3 ind.−1). This is a deviation from our belief that the oligotrophy decreases the phytoplankton size. We showed here that the above understanding might not be infallible in warm-core eddies in the northern Indian Ocean due to its inducing effect on the Trichodesmium abundance.

Źródło:

Oceanologia; 2021, 63, 3; 283-300
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 41.

Tytuł:

Mixing characteristics of the subarctic front in the Kuroshio-Oyashio confluence region

Autorzy:

Ke-Lan, Z.
Xi, C.
Ke-Feng, M.
Dong, H.
Sen, H.
Yan, L.

Powiązania:

https://bibliotekanauki.pl/articles/49009.pdf

Data publikacji:

2019

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Subarctic Front
Kuroshio-Oyashio confluence region
sea surface temperature
salinity
topography
geostrophic flow
thermohaline
structural characteristics
turbulent mixing

Źródło:

Oceanologia; 2019, 61, 1
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 42.

Tytuł:

Propagation of Upwelling on Western-Coast Sumatra During Madden-Julian Oscillation Event

Autorzy:

Haryanto, Y. D.
Fitrianti, N.
Hartoko, A.
Anggoro, S.
Zainuri, M.

Powiązania:

https://bibliotekanauki.pl/articles/125091.pdf

Data publikacji:

2018

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

MJO
upwelling
coastal upwelling
coastal downwelling
mean sea level pressure
potential velocity
zonal wind
meridional wind
sea surface temperature

Opis:

Madden-Julian oscillation (MJO) is an atmospheric oscillation due to atmospheric phenomenon that occurs due to the uniformity of solar energy received at the surface of the earth, MJO is a natural occurrence in the seaatmosphere system. When the MJO is active, in general there will be a disturbance in the upper air which is then followed by an anomaly at sea surface pressure causing the changes in the wind on the surface. The changes in the surface wind affect the sea surface currents which then cause the occurrence of coastal upwelling downwelling. The upwelling process itself is a process whereby a sea mass is pushed upward along the continent, when the beach is to the left of the wind direction, the ecological transport leads to the mass of water away from the coast. As a result, there is a mass vacuum (divergence) in the coastal area. This mass void will be filled by the mass of water from the inner layer that moves to the surface. Indonesian territory itself is passed by MJO in phases 3, 4 and 5, while for Sumatra region is passed by MJO phase 3 and 4. This research aims to identify the propagation of coastal upwelling during MJO on the west coast of Sumatera, therefore the data of geopotential height, surface pressure sea ( MSLP), zonal and meridional components and sea surface temperature are used to analyze how the MJO effect on the coastal upwelling occurs in the research area. The analysis was conducted in June, July and August by comparing the atmospheric conditions at the time of strong MJO in phases 3 and 4 with normal viewing of anomaly geopotential height and MSLP and then seeing the anomaly surface wind changes from zonal wind (u) and meridional wind (v) and changes in SST in Sumatra region. The result shows that there is a change of GH and MSLP when MJO passes the west coast of Sumatra and then follows the change in the value of u and v and SST to identify the upwelling, while the anomaly change negative SST does not occur when MJO is active but has time lag (lag). In this analysis it was found that SST anomaly occurs when the anomaly changes in both the upper and surface water occurring after 5 days in phases 3, 4 and 5.

Źródło:

Journal of Ecological Engineering; 2018, 19, 1; 122-128
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 43.

Tytuł:

O związkach między zmianami temperatury powierzchni Morza Sargassowego a zmianami temperatury powietrza na półkuli północnej (1880-2007)
Correlations between changes in sea surface temperature of the Sargasso Sea and changes in air temperature of the Northern Hemisphere (1880-2007)

Autorzy:

Marsz, A. A.

Powiązania:

https://bibliotekanauki.pl/articles/295028.pdf

Data publikacji:

2011

Wydawca:

Stowarzyszenie Geomorfologów Polskich

Tematy:

globalne ocieplenie
AMO
Morze Sargassowe
półkula północna
global warming
Sargasso Sea
Northern Hemisphere

Opis:

W artykule przedstawiono występowanie bardzo silnych związków między zmiennością temperatury powierzchni Morza Sargassowego a zmianami globalnych i hemisferycznych anomalii temperatury powietrza. Zmiany temperatury powierzchni Morza Sargassowego najsilniej powiązane są ze zmiennością anomalii temperatury powietrza w Arktyce (64-94°N) i w szerokościach umiarkowanych (44-64°N) półkuli północnej. Przeprowadzone analizy szeregów, z których wyeliminowano trendy, wykazują, że zmienność temperatury powierzchni Morza Sargassowego steruje hemisferycznymi anomaliami temperatury powietrza, nie wykazuje natomiast związków ze zmianami koncentracji CO2 w troposferze. Zmienność temperatury powierzchni Morza Sargassowego odbija zmienność AMO (Atlantic Multidecadal Oscillation), która jest procesem naturalnym. Konkluzją jest stwierdzenie, że obserwowany obecnie wzrost hemisferycznej i globalnej temperatury powietrza stanowi w zasadniczym stopniu wynik działania procesów naturalnych.
This article presents occurrence of very strong correlations between the changeability in sea surface temperature of the Sargasso Sea and changes in global and hemispherical anomalies in air temperature. Changes in sea surface temperature of the Sargasso Sea are correlated in the strongest way with the changeability in air temperature anomalies in the Arctic (64-94°N) and latitudes (44-64°N) of the northern hemisphere. The analysis of series, where trends have been eliminated, indicates that changeability in sea surface temperature of the Sargasso Sea has influence on hemispherical anomalies in air temperature, yet it does not show any correlation with the concentration of CO2 in troposphere. Changes in sea surface temperature of the Sargasso Sea reflect AMO (Atlantic Multidecadal Oscillation) changeability, which is a natural process. A conclusion may be drawn that the currently observed increase in hemispherical and global air temperature is significantly influenced by natural processes.

Źródło:

Landform Analysis; 2011, 15; 17-38
1429-799X

Pojawia się w:

Landform Analysis

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 44.

Tytuł:

Svalbard as a study model of future High Arctic coastal environments in a warming world

Autorzy:

Piskozub, J.

Powiązania:

https://bibliotekanauki.pl/articles/48795.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

Svalbard Archipelago
climate change
Arctic area
coastal area
sea surface temperature
Spitsbergen fjord
water temperature
sea ice
cloud
Arctic environment

Opis:

Svalbard archipelago, a high latitude area in a region undergoing rapid climate change, is relatively easily accessible for field research. This makes the fjords of Spitsbergen, its largest island, some of the best studied Arctic coastal areas. This paper aims at answering the question of how climatically diverse the fjords are, and how representative they are for the expected future Arctic diminishing range of seasonal sea-ice. This study uses a meteorological reanalysis, sea surface temperature climatology, and the results of a recent one-year meteorological campaign in Spitsbergen to determine the seasonal differences between different Spitsbergen fjords, as well as the sea water temperature and ice ranges around Svalbard in recent years. The results show that Spitsbergen fjords have diverse seasonal patterns of air temperature due to differences in the SST of the adjacent ocean, and different cloudiness. The sea water temperatures and ice concentrations around Svalbard in recent years are similar to what is expected most of the Arctic coastal areas in the second half of this century. This makes Spitsbergen a unique field study model of the conditions expected in future warmer High Arctic.

Źródło:

Oceanologia; 2017, 59, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 45.

Tytuł:

Rekonstrukcje paleotemperatur w strefie Frontu Polarnego Oceanu Południowego (sektor atlantycki) na podstawie środkowo-górnoplejstoceńskich promienic z odwiertu ODP Leg 177 Site 1091
Paleotemperature reconstructions at the Polar Front in the Southern Ocean (Atlantic sector) based on middle–late Pleistocene radiolarian record from ODP Leg 177 Site 1091

Autorzy:

Kotrys, B.

Powiązania:

https://bibliotekanauki.pl/articles/2075164.pdf

Data publikacji:

2014

Wydawca:

Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy

Tematy:

radiolaria
Southern Ocean
Polar Front
summer sea surface temperature
promienica
Ocean Południowy
Front Polarny
letnia temperatura powierzchni morza

Opis:

Quantitative analysis of radiolarian assemblages, carried out at the Ocean Drilling Program (ODP) Leg 177 Site 1091 (Atlantic sector of the Southern Ocean), provides a well-established summer sea surface temperature (SSST) record from the Polar Front Zone extending back into the Middle Pleistocene at orbital- -submillennial resolution. In order to estimate the SSST, the Imbrie & Kipp method (IKM) and the artificial neural network (ANN) were applied. The SSST records derived from the IKM and ANN display close similarities in paleotemperature fluctuations, amplitudes and absolute values. The ANN-derived SSST estimations display a pattern of slightly more distinct warm events that is closest to the records obtained from EDC (EPICA Dome C) ice cores and ODP Site 1090. The warm events indicate a distinct shift in the extent of the Southern Ocean cold water sphere that must have affected the ocean–atmosphere–ice field interactions and the configuration of high-latitude wind fields. Consistently with the global trend of paleotemperature fluctuation, the SSST record is marked by a distinct shift from low to high glacial/interglacial variability around Termination V. Prior to Termination V, the SSST displays coldest values and low variability. It points to a distinct expansion of the Southern Ocean cold water masses and positional changes of hydrographical fronts during most of the lower Middle Pleistocene.

Źródło:

Przegląd Geologiczny; 2014, 62, 9; 448--455
0033-2151

Pojawia się w:

Przegląd Geologiczny

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 46.

Tytuł:

Effects of global climate oscillations on intermonthly to interannual variability of sea levels along the English Channel Coasts (NW France)

Autorzy:

Turki, I.
Massei, N.
Laignel, B.
Shafiei, H.

Powiązania:

https://bibliotekanauki.pl/articles/2079277.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

sea level
interannual variability
storm
atmospheric circulation
climatic oscillation
sea surface temperature
sea level pressure
North Atlantic oscillation
English Channel

Opis:

This work examines the multiscale variability in sea level along the English Channel coasts (NW France) using a wavelet multiresolution decomposition of water level values and climate oscillations in order to gain insights in the connection between the global atmospheric circulation and the local-scale variability of the monthly extreme surges. Changes in surges have exhibited different oscillatory components from the intermonthly (~3–6-months) to the interannual scales (~1.5-years, ~2–4-years, ~5–8-years) with mean explained variances of ~40% and ~25% of the total variability respectively. The correlation between the multiresolution components of surges and 28 exceptional stormy events with different intensities has revealed that energetic events are manifested at all timescales while moderate events are limited to short scales. By considering the two hypotheses of (1) the physical mechanisms of the atmospheric circulation change according to the timescales and (2) their connection with the local variability improves the prediction of the extremes, the multiscale components of the monthly extreme surges have been investigated using four different climate oscillations (Sea Surface Temperature (SST), Sea-Level Pressure (SLP), Zonal Wind (ZW), and North Atlantic Oscillation (NAO)); results show statistically significant correlations with ~3–6-months, ~1.5-years, ~2–4-years, and ~5–8-years, respectively. Such physical links, from global to local scales, have been considered to model the multiscale monthly extreme surges using a time-dependent Generalized Extreme Value (GEV) distribution. The incorporation of the climate information in the GEV parameters has considerably improved the fitting of the different timescales of surges with an explained variance higher than 30%. This improvement exhibits their nonlinear relationship with the large-scale atmospheric circulation.

Źródło:

Oceanologia; 2020, 62, 2; 226-242
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

Zmiany temperatury powierzchni morza przy zachodnich wybrzeżach Półwyspu Antarktycznego (1900-2012)
Changes in sea surface temperature at the West Coast of the Antarctic Peninsula (1900-2012)

Autorzy:

Marsz, A. A.
Styszyńska, A.

Powiązania:

https://bibliotekanauki.pl/articles/260880.pdf

Data publikacji:

2013

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

Półwysep Antarktyczny
zmiany SST
ochłodzenie
zmiany klimatu
Antarctic Peninsula
SST change
cool
climate change

Opis:

Praca przedstawia wyniki analizy zmian temperatury powierzchni morza (SST) na akwenie rozciągającym się na NW od północnej części Półwyspu Antarktycznego w latach 1900-2012. Stwierdzono występowanie trzech okresów zmian SST. Pierwszy okres – w latach 1900-1932 – charakteryzował się względnie stabilnym zachowaniem SST (trend zerowy, niewielka zmienność międzyroczna, niska (~0,3°C) średnia roczna SST. W drugim okresie – w latach 1932-2000 – nastąpił wzrost zmienności międzyrocznej SST i stopniowy, trójfazowy wzrost SST (trend +0,006(±0,001)°C•rok-1, sumaryczny wzrost rocznej SST o 0,7 deg do ~+1°C). Najwyższą wartość średnią obszarową SST osiągnęła w roku 2000. Trzeci okres – w latach 2000-2012 – charakteryzował się gwałtownym spadkiem SST (trend –0,048(±0,010)°C•rok-1, spadek SST o ~1 deg). Analiza trendów miesięcznych wykazuje, że zmiany SST stanowią rezultat adwekcji wód o odmiennych zasobach ciepła niesionych z zachodu przez Prąd Cirkumantarktyczny. Zmiany SST na badanym akwenie w ostatnim okresie nie są związane ze zmianami makroskalowej cyrkulacji atmosferycznej (SAM, Południowego Trybu Pierścieniowego, Oscylacji Antarktycznej). Opisane zmiany SST zachodzące w latach 2000-2012 mogą doprowadzić do zmiany trendu zmian temperatury powietrza na stacjach zachodniego wybrzeża Półwyspu Antarktycznego.
The paper presents the results of the analysis of changes in sea surface temperature (SST) of the sea area extending to NW from the northern part of the Antarctic Peninsula in the years 1900-2012. Three periods of SST changes were noted: – period covering years 1900-1932 with relatively stable behaviour of the SST (zero trend, a small inter-annual variability, low average annual SST – ~ 0.3°C), – period covering years 1932-2000 with an increase in inter-annual variability of SST and a gradual three-phase increase in SST (trend 0.006 (± 0.001)°C•yr-1, the total increase in annual SST of 0.7 degrees (up to ~ 1°C). The highest average value of the SST was noted in 2000. – period covering years 2000-2012 – a period of rapid drop in SST (trend –0.048 (± 0.010)°C•yr-1, SST decrease of ~ 1 degree). The analysis of monthly trends shows that the changes in SST are the result of advection of water resources with different heat carried from the west by the Antarctic Circumpolar Current. Changes in SST in the analyzed sea area in the last period are not connected with changes in macro-scale atmospheric circulation (SAM Southern Annular Mode, Antarctic Oscillation). The described changes in the SST occurring in 2000-2012 may lead to changes in the trend of temperature changes at the stations on the west coast of the Antarctic Peninsula.

Źródło:

Problemy Klimatologii Polarnej; 2013, 23; 7-19
1234-0715

Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 48.

Tytuł:

Stan termiczny Atlantyku Północnego a zlodzenie mórz Barentsa i Grenlandzkiego (1972-1994)
The thermal conditions of the North Atlantic and ice cover of the Barents and Greenland seas (1972-1994)

Autorzy:

Styszyńska, A.

Powiązania:

https://bibliotekanauki.pl/articles/260840.pdf

Data publikacji:

2004

Wydawca:

Stowarzyszenie Klimatologów Polskich

Tematy:

pokrywa lodowa
temperatury powierzchni oceanu
Morze Barentsa
Morze Grenlandzkie
zlodzenie mórz
ice cover
sea surface temperature
Barents Sea
Greenland sea

Opis:

This work deals with correlations between anomalies in SST (sea surface temperature) in the North Atlantic and the sea ice area of the Barents and Greenland seas. This research made use of mean monthly sea ice cover with density >= 10% observed in the Barents and Greenland seas over the period 1972-1994 (calculated on the bases of weekly area of sea ice cover of the above mentioned seas collected in NCDC data set ?1972-1994 Sea Ice Historical Data Set?). The thermal condition of the North Atlantic is characterised by the values of anomalies in mean monthly sea surface temperature (SST) in so called ?controlled grids? (2° x 2°) selected/appointed here by A.A.Marsz (1999a, 2001). Their location is presented in Fig.1. A standard statistical analysis has been used in this research (correlation analysis, regression analysis). The strongest synchronic correlations (observed in the same months) with the sea ice cover of the said seas have been noted in grids located north of the North Atlantic Current and characterising the following waters (Tables 1 and 2): of the Labrador Sea (located within the range of Labrador Current activity) - [50,52], those north of the Gulfstream delta - [40,52] and those located inside the circle of the cyclonic circulation of the North Atlantic - [30,54]. The highest coefficient values of linear correlation, at a level p<0.05 exceeding the statistical significance, were noted in winter months (December, January, February) and those spring ones (April, May, June) as well as in summer - in July and August (the Greenland Sea). There are also several asynchronic correlations. The results of analysis of multiple regression between the SST anomalies and the area of the sea ice cover indicated that the sea areas in which the changeability in their thermal condition has the greatest influence on the formation of the sea ice cover of the said seas are located in the western part of the North Atlantic.

Źródło:

Problemy Klimatologii Polarnej; 2004, 14; 39-57
1234-0715

Pojawia się w:

Problemy Klimatologii Polarnej

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 49.

Tytuł:

Zmiany stanu termicznego Atlantyku Północnego a przebieg wybranych elementów klimatycznych charakteryzujących klimat Polski
Changes in the thermal state of the North Atlantic and a course of selected climatic elements characterizing the climate of Poland

Autorzy:

Marsz, Andrzej A.
Styszyńska, Anna

Powiązania:

https://bibliotekanauki.pl/articles/2175602.pdf

Data publikacji:

2021

Wydawca:

Polskie Towarzystwa Geofizyczne

Tematy:

Północny Atlantyk
temperatura powierzchni oceanu
SST
Polska
elementy klimatyczne
korelacje
North Atlantic
Sea Surface Temperature
Polska
climatic elements
correlation

Opis:

W pracy rozpatruje się związki między szeregami 7 elementów klimatycznych, obliczonych jako średnie obszarowe dla Polski, a rocznymi szeregami SST na Atlantyku Północnym, obliczonymi dla gridów między 30 a 70°N, w rozdzielczości przestrzennej 10°φ × 10°λ. Okres analizy obejmuje lata 1951-2018. Dane SST pochodzą ze zbioru NOAA NCDC ERSST v.3b, a dane do utworzenia rocznych obszarowych wartości elementów klimatycznych nad Polską stanowią przetworzone dane IMGW BIP (temperatura i wilgotność powietrza, zachmurzenie ogólne, sumy opadów i usłonecznienie) oraz dane pochodzące z reanalizy (SLP i prędkość wiatru). Wyniki analizy ujawniły, że między wszystkimi roz- patrywanymi elementami klimatycznymi a SST na N Atlantyku zachodzą istotne lub (w zdecydowanej przewadze) wysoce istotne korelacje. Rozkład przestrzenny korelacji SST z poszczególnymi elementami przedstawia wyraźne zróżnicowanie geograficzne (rys. 1-7). SST na N Atlantyku w rejonie 30-40°N i 60-40°W wykazuje silne i wysoce istotne korelacje z temperaturą powietrza, sumą usłonecznienia i wilgotnością względną nad Polską. Słabsze, ale przeważnie wysoce istotne korelacje SST z rocznym zachmurzeniem, sumami opadu, SLP i prędkością wiatru obserwuje się w rejonie 50-60°N, 60-20°W. Analiza w większej rozdzielczości przestrzennej przeprowadzona na dwóch obszarach (sekcja S i sekcja N, ryc. 8) wskazała, czego należało się spodziewać, że wartości współczynników korelacji między zmianami SST są wyższe od określonych w analizie o małej rozdzielczości przestrzennej. Oprócz korelacji między SST w poszczególnych punktach i elementami klimatycznymi nad Polską, zachodzą również korelacje między południkowymi gradientami SST między 40 a 60°N. Największą siłę korelacji osiągają te na długościach B (40°W) i C (30°W) - tab. 8. Zmienność SST wykazuje silne związki ze składową długookresową zmian elementów klimatycznych, słabsze ze zmiennością międzyroczną. Analiza relacji logicznych wskazuje, że zmiany SST stanowią przyczynę zmian elementów klimatycznych nad Polską. Zmiany rocznych wartości SST na poszczególnych akwenach objaśniają około 46% wariancji rocznej temperatury powietrza i usłonecznienia w Polsce, 27-30% wariancji wilgotności względnej i prędkości wiatru oraz 12-23% wariancji rocznej zachmurzenia ogólnego, sum opadów oraz SLP. Ponieważ zmienność każdego elementu klimatycznego jest funkcją zmian SST na Atlantyku Północnym, wynika z tego, że zmiany i zmienność klimatu Polski są w znacznej części sterowane przez zmiany stanu termicznego Atlantyku Północnego.
The study considers the relationships between the series of 7 climatic elements, averaged for the area of Poland, and the annual series of SST in the North Atlantic, calculated for grids between 30 and 70°N, at a spatial resolution of 10°φ × 10°λ. The period of analysis covers the years 1951-2018. The SST data comes from the NOAA NCDC ERSST v.3b data base. The data used for the creation of area-averaged annual values of climatic elements over Poland are obtained from IMWM NRI (Institute of Meteorology and Water Management – National Research Institute) – air temperature and humidity, cloud cover, precipitation sums and sunshine duration, and from reanalyzed data – SLP and wind speed. The results of the analysis showed that there are significant or (prevalent) highly significant correlations between all the considered climatic elements and the SST in the North Atlantic. The spatial distribution of the SST correlation with individual elements shows a clear geo graphic differentiation (Fig. 1-7). SST in the North Atlantic in the region of 30°N – 40°N and 60°N - 40°W produces strong and highly significant correlations with air temperature, sum of sunshine duration and relative humidity over Poland). Weaker, but predominantly highly significant correla tions of SST with annual cloudiness, sum of precipitation, SLP and wind speed are observed in the region of 50°N – 60°N, 60°W – 20°W. The analysis based on higher spatial resolution carried out in two areas (section S and section N, Fig. 8) indicated, what could be expected, that the values of the correlation coefficients between changes in SST are higher than those performed for lower spatial resolution. Next to the correlation between the SST defined for individual grids and the climatic ele ments over Poland, the correlations between the longitudinal SST gradients between 40°N and 60°N are also observed. The greatest values of these correlations are noticed for the B (40°W) and C (30°W) profiles – Table 8. SST variability shows strong relation with the long-term component of changes in climatic elements, weaker with inter-annual variability. The analysis of logical relations shows that SST is the cause of changes in climatic elements over Poland. Changes in the annual SST values in individual water bodies explain about 46% of the annual air temperature and sum of sunshine dura tion variance in Poland, 27-30% of the relative humidity and wind speed variance, and 12-23% of the annual variance of cloud cover, sum of precipitation and SLP. Since the variability of each climatic element is a function of SST changes in the North Atlantic, the changes and variability in Poland’s climate are largely driven by changes in the thermal state of the North Atlantic.

Źródło:

Przegląd Geofizyczny; 2021, 3-4; 161--186
0033-2135

Pojawia się w:

Przegląd Geofizyczny

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 50.

Tytuł:

Synoptic conditions governing upwelling along the Polish Baltic coast

Autorzy:

Bednorz, E.
Polrolniczak, M.
Czarnecki, B.

Powiązania:

https://bibliotekanauki.pl/articles/49142.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Instytut Oceanologii PAN

Tematy:

synoptic condition
upwelling
Baltic Sea
Baltic coast
sea surface temperature
marine ecosystem
sea level pressure
wind direction
wind speed
weather condition

Źródło:

Oceanologia; 2013, 55, 4
0078-3234

Pojawia się w:

Oceanologia

Dostawca treści:

Biblioteka Nauki

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