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Wyświetlanie 1-15 z 26
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
Artykuł
Tytuł:
Changes of water physical features as indicators of the convection movements in the coastal zone of the Pomeranian Bay
Zmiany cech fizycznych wód jako wskaźnik ruchów konwekcyjnych w strefie brzegowej Zatoki Pomorskiej
Autorzy:
Kowalewska-Kalkowska, H.
Lejman, J.
Powiązania:
https://bibliotekanauki.pl/articles/85081.pdf
Data publikacji:
2003
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
water temperature
salinity change
sea water
air temperature
wind condition
physical feature
indicator
convection movement
coastal zone
Pomeranian Bay
sea surface temperature
summer period
meteorological condition
surface water
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2002-2003, 07
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Związki między temperaturą wody w energoaktywnej strefie Morza Bellingshausena a temperaturą powietrza na Stacji Arctowskiego
Correlations between the water temperature in energy-active zone of the Bellingshausen Sea and the air temperature at the Arctowski Station
Autorzy:
Styszyńska, A.
Powiązania:
https://bibliotekanauki.pl/articles/260963.pdf
Data publikacji:
1998
Wydawca:
Stowarzyszenie Klimatologów Polskich
Tematy:
temperatura wody
temperatura powietrza
Szetlandy Południowe
Stacja Arctowskiego
anomalia TPO
water temperature
air temperature
Arctowski Station
South Shetland
SST anomalies
Opis:
The main task of this paper is to explain if there is an energy-active sea zone in the vicinity of the South Shetland Islands and the Antarctic Peninsula which controls changes in atmospheric circulation in this area. The analysis made by use of the data comprising information about mean monthly sea surface temperatures (later SST) and SST anomalies in 2 x 2° grids - GEDEX and data about mean monthly air temperatures taken at the Arctowski Station (Meteorological Yearbooks of the Arctowski Station). Common data spanned the period from January 1982 to April 1992. The first stage of this work was to find so called .active grids", i.e. grids of bigger influence of ocean surface on thermic regime of distant areas. In order to do that an analysis of changes in SST in parts of the South Ocean comprising the Bellingshausen Sea, the Drake Strait, the Scotia Sea and the boundary between the Scotia Sea and the Weddell Sea was carried out. The analysis resulted in a conclusion that three grids situated 80oW: 56°,60° and 64°S show the larger relation with the flow of air temperature at the Arctowski Station. There are synchronic and asynchronic correlations between SST anomalies and the air temperature in nominated grids of the Arctowski Station. The results of analysis of synchronic correlations have been presented in table l. Asynchronic correlations are of complicated nature and distributions. Most numerous simple correlations were reported to occur between the temperature at the Arctowski Station and SST Anomalies in grids [80°W, 64°S]. The largest correlations are those with anomalies occurring in January, February and March. They can be observed in the air temperature with 11-13 months delay. The combined correlations are multiple correlations between regression equation of synchronically occurring anomalies (AN) in those grids and the air temperature at the Arctowski Station (ARC) in consecutive months (1, 2, 3, ..., n, n + 1, n + 2); ARC_n = a + b AN[80.56]_n + c AN[80.60]_n + d AN[80.64]_n. Table 2 contains set of multiple correlation coefficients and those which are likely to be significant have been marked. It has been stated that SST anomalies at 800W in March correlate with monthly air temperatures at the end of summer the following year (February and March) at the Arctowski Station and with temperatures of the early and midwinter of the following year (May, June, July).The variation in SST anomalies in March explains 88% - 69% of variance of variation in the air temperature in June and in July of the following year at the Arctowski Station (fig. l). The response of the air temperature to the occurrence of SST anomalies in October at 800W is much faster - from one to five months. Large correlation between the air temperatures at the Arctowski Station and SST anomalies can be observed already in December of the same year and in January, March and April in the following year (fig. 2). The above stated facts lead to conclusion that the distribution of SST does not influence the flow of the air temperature in a continuous way. Future variations in the air temperature are influenced by the states of thermal field of water measured at crucial moments (the end of summer and the end of winter). They are the states, which later on are slowly modified by processes of radiation in-and off flow, wind chilling and dynamic processes active in the ocean (heat advection following the mass advection). Thus a thesis can be stated that the SST anomalies occurring in grids 56°, 600 and 64°S. 800W may serve as predictive values to work out long term prognosis of the air temperature at the Arctowski Station. These prognosis can be divided into "early" prognosis with 2-6 months' advance (equations 1-4) and "distant" prognosis with 11-18 months' advance (equations 5-8). The above mentioned equations explain about 91% to 52% of variations in the mean monthly air temperature at the Arctowski Station. The presented facts indicate that there really is energy-active zone in the Bellingshausen Sea. Chapter 6 in 4 points shows how the hypothetical mechanism works. It can be understood and explained in a similar way as in case of the Labrador Sea and the New Foundland region (Marsz 1997). The analysis of synchronic statistical correlations between the air temperature at the Arctowski Station and the distribution of SST anomalies at 80°W indicates, among others, the presence of the mechanism described in Chapter 6. Such correlations have been analysed and discussed in a detailed way for April (fig. 3, equations 9 and l0) and for July (fig. 4, equation 11).
Źródło:
Problemy Klimatologii Polarnej; 1998, 8; 25-46
1234-0715
Pojawia się w:
Problemy Klimatologii Polarnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Validation of the hydrodynamic part of the ecohydrodynamic model for the Southern Baltic
Autorzy:
Jedrasik, J.
Powiązania:
https://bibliotekanauki.pl/articles/48134.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
fluctuation
water temperature
hydrodynamic model
validation
sea level
ecohydrodynamic model
salinity
Baltic Sea
Opis:
The first part of the Baltic Sea ecohydrodynamic model, based on the Princeton Ocean Model (POM), was validated by long-term observations of sea level, salinity and water temperature fluctuations. The modelled sea surface temperature (SST) fields were also compared to satellite images – satisfactory correlation coefficients were obtained. The model bias and efficiency coefficients of the modelled variables in relation to the observed values were determined. The quality of model simulations in relation to measured values was estimated with respect to spatial and seasonal variability in shallow and deep coastal waters as well as in the open sea. The results indicated the high quality of simulations by the hydrodynamic model.
Źródło:
Oceanologia; 2005, 47, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Winter upwelling in the Gulf of Finland, Baltic Sea
Autorzy:
Suursaar, U.
Powiązania:
https://bibliotekanauki.pl/articles/2078916.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
upwelling
winter
nearshore region
Finland Gulf
Baltic Sea
stratification
vertical flux
water temperature
Opis:
Traditionally, upwelling-related studies in the Baltic Sea have been limited to the period from May to September. Based on wintertime in situ measurements at two nearshore locations in the Gulf of Finland, clear evidence of winter “warm” upwelling events was detected and analysed. The process was very common. At a 10 m deep location, upwelling caused water temperature (T) to switch from 0—1 to 4—5°C and salinity (S) to switch from 4.5 to 6 PSU; at 20 m depth it caused a switch in T between 1 and 2—4°C and in S between 5.5 and 6.8 PSU. Differently from summer upwelling, T and S variations were positively correlated to each other. Salinity variations remained roughly the same throughout the winter, whereas T differences were higher in winter onset, then decreased to ca. 1°C, and increased again after the process reversed to summer-type upwelling in April—May. Based on analysis of SatBaltyk (January to March) sea surface temperature and salinity product imagery, winter upwelling occurrence along the North Estonian coast was 21—28% over 2010—2021, and slightly less along the Finnish coast. Regarding S variations, winter upwelling occurred with roughly similar frequencies and impacts in the northern and southern parts of the gulf. However, the impacts on T and sea ice conditions were highly asymmetrical. Upwelling kept the Estonian coast ice-free longer and water temperatures slightly higher than at the Finnish coast. Winter upwelling as a phenomenon has long been ignored and therefore probably underestimated.
Źródło:
Oceanologia; 2021, 63, 3; 359-369
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combined impact of summer heat waves and coastal upwelling in the Baltic Sea
Autorzy:
Suursaar, U.
Powiązania:
https://bibliotekanauki.pl/articles/2079092.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
global warming
heat wave
coastal upwelling
water temperature
salinity
satellite image
Finland Gulf
Baltic Sea
Opis:
Under warming climates, heat waves (HWs) have occurred in increasing intensity in Europe. Also, public interest towards HWs has considerably increased over the last decades. The paper discusses the manifestations of the summer 2014 HW and simultaneously occurring coastal upwelling (CU) events in the Gulf of Finland. Caused by an anticyclonic weather pattern and persisting easterly winds, CUs evolved along the southern coast of the Gulf in four episodes from June to August. Based on data from coastal weather stations, 115 days-long measurements with a Recording Doppler Current Profiler (RDCP) oceanographic complex and sea surface temperature (SST) satellite images, the partly opposing impacts of these events are analysed. Occurring on the background of a marine HW (up to 26°C), the CU-forced SST variations reached about 20 degrees. At the 10 m deep RDCP mooring location, a drop from 21.5 to 2.9°C occurred within 60 hours. Salinity varied between 3.6 and 6.2 and an alongshore coastal jet was observed; the statistically preferred westerly current frequently flowed against the wind. Locally, the cooling effect of the CUs occasionally mitigated the overheating effects by the HWs both in the sea and on the marine-land boundary. However, in the elongated channel-like Gulf of Finland, upwelling at one coast is usually paired with downwelling at the opposite coast, and simultaneously or subsequently occurring HWs and CUs effectively contribute to heat transfer from the atmosphere to the water mass. Rising extremes of HWs and rapid variations by CUs may put the ecosystems under increasing stress.
Źródło:
Oceanologia; 2020, 62, 4PA; 511-524
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Historical occurrences of marine microalgal blooms in Indian Peninsula: Probable causes and implications
Autorzy:
Oyeku, O.G.
Mandal, S.K.
Powiązania:
https://bibliotekanauki.pl/articles/2079002.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
marine environment
algal bloom
microalga
sea surface
water temperature
Indian Peninsula
Opis:
The Indian marine environment supports employment for over 200 million people, including revenue of nearly $7 billion per annum. However, ecological goods and services of the shallow coast and the marine environment of the Indian peninsula are being affected by recurrent blooms of microalgae. One hundred and six published literature, starting from the first report in 1908 to 2017, were reviewed to investigate the historical occurrences of marine microalgal blooms (MMBs) around the Indian peninsula. 154 MMBs comprising 24 genera and 7 classes were reported during the study period. Noctiluca (dinophyceae) and Trichodesmium (cyanophyceae) bloom contributed 34.4% and 31.8% of total blooms. PCA revealed that high sea surface temperature (SST) and salinity were significant driving forces for Trichodesmium blooms formation, while high nutrients (NO3-N, PO4-P, and SiO4-Si) and low salinity triggered prymnesiophyceae, raphidophyceae, bacillariophyceae and most of the dinophyceae blooms. Noctiluca blooms were linked with both eutrophication and the abundance of prey organisms. HABs were generally dinophyceae dominated and were associated with mass mortality of aquatic fauna, human intoxication, paralytic, and ciguatera shellfish poisoning and even death. Increasing SST and anthropogenic influences around the Indian peninsula could increase the occurrences of MMBs (including HABs) and the number of causative taxa. Proper safety measures such as routine monitoring of phycotoxin levels in the environment and local seafood are required to be put in place in other to protect the health of the public.
Źródło:
Oceanologia; 2021, 63, 1; 51-70
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes of the water temperature in Polish seaside resorts
Zmiany temperatury wody w polskich miejscowościach nadmorskich
Autorzy:
Swiatek, M.
Powiązania:
https://bibliotekanauki.pl/articles/84801.pdf
Data publikacji:
2016
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
temperature change
sea water
water temperature
air temperature
Baltic coast
Polska
seaside resort
Opis:
Subject of the study are changes of the water temperature occurring on the Polish Baltic coast during years 1951-2010 (in Kołobrzeg, due to deficiencies in the data, for the years 1957-2010). It is expressed in the form of a linear trend. The study was based on the monthly average temperature of the sea water in the following stations: Świnoujście, Międzyzdroje, Kołobrzeg, Władysławowo, Hel and Gdynia. For most of analyzed stations an increase in average annual temperature of the water were observed. The largest one was recorded in Gdynia. In Świnoujście there were no significant changes in water temperature except for the slight its drop in June. A significant increase in the water temperature occurred in Międzyzdroje in February, March, April and May; in Kołobrzeg in January and March; in Władysławowo in January, February, March, April and June and in Hel and Gdynia in February, March, April, May, July and August. The greatest changes were in April in Hel and Gdynia.
Przedmiot badań stanowią zmiany temperatury wody zachodzące na polskim wybrzeżu Bałtyku w latach 1951-2010 (w Kołobrzegu ze względu na braki w danych w latach 1957-2010), wyrażone w formie trendu liniowego. W pracy wykorzystano średnie miesięczne wartości temperatury wody w następujących miejscowościach: Świnoujście, Międzyzdroje, Kołobrzeg, Władysławowo, Hel oraz Gdynia. W większości analizowanych stacji (oprócz Świnoujścia i Kołobrzegu) nastąpił wzrost średniej rocznej temperatury wody. Największy odnotowano w Gdyni, gdzie temperatura wody wzrastała średnio o około 0,02°C rocznie. Istotny statystycznie wzrost temperatury wody nastąpił w Międzyzdrojach w lutym, marcu, kwietniu i maju, w Kołobrzegu w styczniu i marcu, we Władysławowie w styczniu, lutym, marcu, kwietniu i w czerwcu, a w Helu i Gdyni w lutym, marcu, kwietniu, maju, lipcu i sierpniu. Największe zmiany następowały w kwietniu (w Helu i Gdyni powyżej 0,03°C rocznie). W Świnoujściu nie wystąpiły istotne zmiany temperatury wody z wyjątkiem niewielkiego jej spadku w czerwcu.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2016, 20
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of atmospheric circulation on water temperature along the Southern Baltic Sea coast
Autorzy:
Girjatowicz, J.P.
Swiatek, M.
Powiązania:
https://bibliotekanauki.pl/articles/48210.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
atmospheric circulation
water temperature
surface temperature
thermal property
air mass
correlation
Baltic Sea
coastal zone
Źródło:
Oceanologia; 2019, 61, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pronounced anomalies of air, water, ice conditions in the Barents and Kara Seas, and the Sea of Azov
Autorzy:
Matishov, G.G.
Dzhenyuk, S.L.
Moiseev, D.V.
Zhichkin, A.P.
Powiązania:
https://bibliotekanauki.pl/articles/49104.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
climate
water temperature
anomaly
air temperature
sea ice
Barents Sea
Kara Sea
Azov Sea
hydrographic condition
winter condition
Źródło:
Oceanologia; 2014, 56, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of measured and modelled water temperature for the southern Baltic Sea during 1998-2001
Autorzy:
Piliczewski, B.
Powiązania:
https://bibliotekanauki.pl/articles/972881.pdf
Data publikacji:
2001
Wydawca:
Instytut Morski w Gdańsku
Tematy:
HIROMB
water temperature
Opis:
The article presents results of verification of water temperature forecasts from HIROMB model, which were compared with every-day measurements from some selected JMGW coastal hydrological stations during 1998-2001. In addition to that the model results were also confronted with CTD measurements from the Gdańsk Deep.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 2001, 28, 2; 89-95
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of measured and modelled water temperature for the southern Baltic Sea during 1998-2001
Autorzy:
Piliczewski, B.
Powiązania:
https://bibliotekanauki.pl/articles/1920638.pdf
Data publikacji:
2001
Wydawca:
Instytut Morski w Gdańsku
Tematy:
HIROMB
water temperature
Opis:
The article presents results of verification of water temperature forecasts from HIROMB model, which were compared with every-day measurements from some selected JMGW coastal hydrological stations during 1998-2001. In addition to that the model results were also confronted with CTD measurements from the Gdańsk Deep.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 2001, 28, 2; 89-95
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of landfast ice on the hydrography and circulation of the Baltic Sea coastal zone
Autorzy:
Merkouriadi, I.
Lepparanta, M.
Powiązania:
https://bibliotekanauki.pl/articles/49047.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Finland Gulf
hydrography
landfast ice
circulation
Baltic Sea
coastal zone
water temperature
salinity
current
Źródło:
Oceanologia; 2013, 55, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Summer mesozooplankton community of Moller Bay (Novaya Zemlya Archipelago, Barents Sea)
Autorzy:
Dvoretsky, V.G.
Dvoretsky, A.G.
Powiązania:
https://bibliotekanauki.pl/articles/49179.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
mesozooplankton
biomass
vertical distribution
water temperature
salinity
chlorophyll a concentration
Barents Sea
Moller Bay
Novaya Zemlya Archipelago
Źródło:
Oceanologia; 2013, 55, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodiversity of the Arctic Ocean in the face of climate change
Autorzy:
Weslawski, J.M.
Powiązania:
https://bibliotekanauki.pl/articles/11979.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
biodiversity
Arctic Ocean
climate change
global climate change
Arctic sea
aquatic ecosystem
Arctic environment
sea water
water temperature
salinity level
Opis:
Global climate changes which has been observed over the recent years affects organisms occurring in the Arctic seas and the functioning of the whole maritime ecosystems there. The research note presents and briefly analyses the biological diversity of the Arctic Ocean and the most important factors which change the relations between organisms and the environment in the Arctic.
Źródło:
Papers on Global Change; 2011, 18
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
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