Wszystkie pola: water salinity - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Sedimentation from suspension and sediment accumulation rate in the River Vistula prodelta, Gulf of Gdansk (Baltic Sea)
Autorzy:: Damrat, M.
Zaborska, A.
Zajaczkowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/48809.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: sedimentation
suspension
sediment accumulation
redeposition
Vistula River
river discharge
Gdansk Gulf
Baltic Sea
water salinity
turbidity
temperature
Źródło:: Oceanologia; 2013, 55, 4
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Characteristics of water temperature and salinity at Admiralty Bay (King George Island, South Shetland Islands Antarctic) during the austral summer1978/1979
Autorzy:: Szafrański, Zygmunt
Lipski, Maciej
Powiązania:: https://bibliotekanauki.pl/articles/2057653.pdf
Data publikacji:: 1982
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Admiralty Bay
temperature
salinity
relative density
Źródło:: Polish Polar Research; 1982, 3, 1-2; 7-24
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Unusual Baltic inflow activity in 2002-2003 and varying deep-water properties
Autorzy:: Feistel, R.
Nausch, G.
Hagen, E.
Powiązania:: https://bibliotekanauki.pl/articles/48654.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: Sopot
temperature
inflow
residence time
deep water renewal
conference
salinity
Baltic Sea
Baltic Monitoring Programme
Opis:: The unusual sequence of inflow events into the Baltic Sea that occurred in 2002 and 2003 includes the first ever important baroclinic inflow to be described (August 2002), the Major Baltic Inflow (January 2003), which gave rise to the highest oxygen levels in the Gotland Deep since the 1930s, and the baroclinic inflow (August 2003) that elevated the Gotland Basin deep water salinity to values last observed in 1977, and caused the surface salinity to rise again. From these trend changes, salt residence times were estimated at about 20 years in the deep waters and 30 years above the pycnocline. Ventilation of the remote Karlsö Deep took until 2005, two years after the inflow event responsible, at a time when the Bornholm and Eastern Gotland Basins were already returning to stagnation.
Źródło:: Oceanologia; 2006, 48, S
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Increases in the temperature and salinity of deep and intermediate waters in the West Spitsbergen Current region in 1997–2016
Autorzy:: Merchel, M.
Walczowski, W.
Powiązania:: https://bibliotekanauki.pl/articles/2079090.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: climate change
deep water
temperature
salinity
intermediate water
West Spitsbergen current
hydrographic data
Opis:: This study investigated the temporal variability in the basic physical properties of deep and intermediate waters in the West Spitsbergen Current region at 76°30’N latitude from 1997 to 2016. Emphasis was placed on quantifying the changes in temperature and salinity and determining the potential drivers of these changes. Hydrographic data were obtained during annual summer cruises aboard the r/v Oceania in the Nordic Seas. The increase in the water temperature, which was especially strong in the western part of the investigated section, was associated with considerable changes in the water layers salinity. The temperature and salinity of the intermediate water increased much faster (0.021°C yr−1 and 0.0022 yr−1, respectively) than those of the deep water (0.009°C yr−1 and 0.0004 yr−1, respectively). The warming rate in the upper 2000 m was also higher than the mean warming rate of the global ocean. The source of the deep water temperature and salinity increases was the deep water inflow from the Arctic Ocean into the Greenland Sea. In contrast, the increase in these properties in the intermediate water was associated with the advection of warmer and more saline Atlantic Water from the North Atlantic to the Nordic Seas.
Źródło:: Oceanologia; 2020, 62, 4PA; 501-510
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Metodyczne zagadnienia monitoringu statusu wody w wybranych materialach biologicznych
Methodical questions of monitoring of water status in selected biological materials
Autorzy:: Malicki, M A
Powiązania:: https://bibliotekanauki.pl/articles/1630378.pdf
Data publikacji:: 1999
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: agrofizyka
materialy biologiczne
zboza
ziarno
drewno
gleby
woda glebowa
wilgotnosc gleby
wilgotnosc ziarna
wilgotnosc drewna
temperatura
zasolenie gleb
potencjal wodny gleby
pomiary wilgotnosci
natlenienie
monitoring
agrophysics
biological material
cereal
grain
wood
soil
soil water
soil moisture
grain moisture
wood moisture
temperature
soil salinity
soil water potential
moisture measurement
oxygenation
Opis:: Methodical questions of monitoring of water status in soil, cereals grain and wood are discused ( where monitoring is understood as registration of time and spatial variability of selected properties). Amount of viariables which is necessary in order to determine water status depends on the complexion of the considered phenomena and is, so far, the matter of arbitrary choice. In most practical cases the water status is expressed only by moisture of the considered material ( like the building timber). In practical terms, two variables suffice to express water status in cereal grain: moisture and temperature. To describe water status in the soil not less then five variables are needed: amount of water (the soil moisture) soil water potential, salinity, oxygenation and temperature. The only sensors that can be integrated in modern data acquisition system must be read electrically. Therefore electroresistance and electrocapacitance methods were considered. Dielectric sensors were recognized as the proper choice.Soil is a complex material having instable characteristics. For this reason it is the most difficult task to monitor soil water status, particularly to determine the soil moisture. Therefore it has been assumed that measuring methods verified for the soil will be also suitable for other, less complex materials. Thus, monitoring of soil water status was mainly discussed. Special attention was focused to the time domain reflectometry, TDR, as the semi selective method for the soil moisture and salinity determination.
Źródło:: Acta Agrophysica; 1999, 19; 1-108
1234-4125
Pojawia się w:: Acta Agrophysica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: An overview of the teta - S correlations in Fram Strait based on the MIZEX 84 data
Autorzy:: Schlichtholz, P.
Houssais, M.N.
Powiązania:: https://bibliotekanauki.pl/articles/47520.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: temperature
Fram Strait
Atlantic water
hydrographic cast
MIZEX 84 experiment
teta-S diagram
water mass
salinity
Arctic Ocean
Opis:: The water masses in Fram Strait have been analyzed on the basis of hydrographic casts taken in summer 1984 during the MIZEX 84 experiment. In particular, θ − S diagrams for 16 areas, each 5◦ in longitude and 1◦ in latitude, covering the strait from 77◦N to 81◦ N are used to characterize the water masses and discuss their possible origin. Near the surface, the East Greenland Polar Front clearly separates the lighter, cold and fresh Polar Water (PW) from the heavier, warm and saline Atlantic Water (AW). In the upper ocean, the data show a large spreading of the temperature maximum in the θ − S space associated with different modes of the AW recirculating southward below the PW. Two geographically distinct salinity minima are found in the intermediate layer below the AW. The denser one, in the Boreas Basin, is a feature typical of the Arctic Intermediate Water (AIW) formed by winter convection to the south of the strait, while the lighter one is sandwiched in the Arctic Ocean outflow between the AW layer and the Upper Polar Deep Water (UPDW) characterized by a downward salinity increase. In the deep layer, two salinity maxima are present. The shallower (and warmer) one, associated with the Canadian Basin Deep Water (CBDW), appears all along the East Greenland Slope. A similar but weaker maximum is also found in the southeastern part of the strait. This maximum is perhaps a remnant of the maximum in the East Greenland Current after it has been recirculated back to the strait around the cyclonic gyres of the Nordic Seas. The deeper one appears typically as a near-bottom salinity jump characteristic of the Eurasian Basin Deep Water (EBDW). The jump is found in two distinct areas of the strait, to the north-west in the Lena Trough and to the south-east in the rift valley of the Knipovich Ridge. The maximum in the former area should have been advected from the Arctic Ocean below the CBDW, while the maximum in the latter area might have originated from haline convection on the adjacent shelves. Some EBDW is trapped in the Molloy Deep over a denser water with salinity decreasing down to the bottom and temperature in the range of the Greenland Sea Deep Water (GSDW).
Źródło:: Oceanologia; 2002, 44, 2
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Hydrographic and hydrochemical conditions in the Gotland Deep area between 1992 and 2003
Autorzy:: Nausch, G.
Matthaus, W.
Feistel, R.
Powiązania:: https://bibliotekanauki.pl/articles/48546.pdf
Data publikacji:: 2003
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: nutrient pool
temperature
hydrography
hydrochemical condition
ventilation
nutrient distribution
bottom water
salinity
Baltic Sea
stagnation period
hydrographic condition
Gotland Deep
Opis:: The paper describes the hydrographic-hydrochemical development in the eastern Gotland Basin between the major saltwater inflows into the Baltic Sea in 1993 and 2003. This period is characterised by only low inflow activity. The most important hydrographic events were the effects of the very strong inflow in 1993 and the weak inflows in 1993/1994 and 1997. The 1993/1994 inflows led to deep-water renewal, a steep fall in deep-water temperatures, and increasing salinity. The effects of the inflow of very warm, saline and oxygen-rich water in autumn 1997 were observed in the deep water in 1998, resulting in temperatures rising to 7◦C. The recent renewal in spring 2003 is reflected in the decreasing temperature, higher salinity and improved ventilation of the bottom water. Changes in the redox conditions exert a considerable influence on the nutrient distribution. During stagnation periods, there is enrichment of phosphate and ammonium, while nitrate is absent. Thus, around 31 μmol l−1 ammonium and 7 μmol l−1 phosphate were measured prior to the water renewal in 2003. Deepwater ventilation results in lower phosphate concentrations of around 2 μmol l−1, the nitrification of ammonium and the occurrence of nitrate. For the observation period, an estimate of nutrients stored in the deep water was done for the eastern Gotland Basin. During the recent stagnation period, there was an increase of up to 150% in the phosphate pool below the halocline, whereas the pool of inorganic nitrogen compounds decreased to 80% compared with 1992 when the previous stagnation period had ended. Under specific circumstances, these unbalanced nutrients can be made available to the upper water layers and can induce large-scale blooms of algae, especially of cyanobacteria.
Źródło:: Oceanologia; 2003, 45, 4
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Is practical salinity conservative in the Baltic Sea?
Autorzy:: Feistel, R.
Weinreben, S.
Powiązania:: https://bibliotekanauki.pl/articles/48152.pdf
Data publikacji:: 2008
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: Standard Seawater
chemical composition
oceanographic measurement
Baltic water
temperature
Baltic Sea
practical salinity scale
salinity
calcium ion
sea water
Opis:: The conductivity-salinity conversion algorithm used for oceanographic measurements of Practical Salinity on the PSS-78 scale is designed for IAPSO Standard Seawater. The application of this formula to a given sample of non-standard seawater does not necessarily result in a constant salinity value when the sample’s conductivity is measured at different temperatures.We have experimentally studied the magnitude of this non-conservative effect of Practical Salinity using a sample of Baltic seawater possessing a density anomaly of about 50 g m−3. The apparent change of salinity observed is at the limit of experimental uncertainty and is not significantly different from the drift of Standard Seawater, which was measured for comparison.
Źródło:: Oceanologia; 2008, 50, 1; 73-82
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: On the buoyant sub-surface salinity maxima in the Gulf of Riga
Autorzy:: Liblik, T.
Skudra, M.
Lips, U.
Powiązania:: https://bibliotekanauki.pl/articles/48990.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: thermohaline structure
Riga Gulf
water column
temperature
salinity
stratification
water exchange
intrusion
Opis:: Thermohaline structure in the Gulf of Riga (GoR) was investigated by a multiplatform measurement campaign in summer 2015. Stratification of the water column was mainly controlled by the temperature while salinity had only a minor contribution. Buoyant salinity maxima with variable strength were observed in the intermediate layer of the Gulf of Riga. The salinity maxima were likely formed by a simultaneous upwelling—downwelling event at the two opposite sides of the Irbe strait. The inflowing salty water did not reach the deeper (> 35 m) parts of the gulf and, therefore, the near-bottom layer of the gulf remained isolated throughout the summer. Thus, the lateral water exchange regime in the near bottom layer of the Gulf of Riga is more complicated than it was thought previously. We suggest that the occurrence of this type of water exchange resulting in a buoyant inflow and lack of lateral transport into the near-bottom layers might contribute to the rapid seasonal oxygen decline in the Gulf of Riga
Źródło:: Oceanologia; 2017, 59, 2
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Variability of temperature and salinity over the last decade in selected regions of the Southern Baltic Sea
Autorzy:: Rak, D.
Wieczorek, P.
Powiązania:: https://bibliotekanauki.pl/articles/48785.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: temperature
salinity
Southern Baltic Sea
trend
seasonal variability
physical property
water column
water exchange
water circulation
Opis:: Changes in the basic physical properties of selected areas of the Baltic Proper were analysed on the basis of the results of a 12-year series of high-resolution measurements collected during cruises of r/v ‘Oceania’. The high-resolution CTD sections covered three main basins: the Bornholm Basin, Słupsk Furrow and Gdańsk Basin. Positive temperature trends of 0.11 and 0.16◦C year−1 were observed in the surface and deep layers respectively. The salinity trend was also positive. The rise in the air temperature has probably caused the increase in surface water temperature, while advection has been of greater significance in the deep layer. The increase in salinity coincides with the more frequent occurrence of small and medium-size inflows through the Danish Straits, even though large inflows are evidently less frequent than used to be the case. The seasonal variability of temperature in the water column was analysed. The phase shift in the seasonal evolution with depth is described. The maximum temperature shift in the waters investigated varies from 32 to 38 days.
Źródło:: Oceanologia; 2012, 54, 3
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Contrasting zooplankton communities (Arctic vs. Atlantic) in the European Arctic Marginal Ice Zone
Autorzy:: Blachowiak-Samolyk, K.
Powiązania:: https://bibliotekanauki.pl/articles/47495.pdf
Data publikacji:: 2008
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: zooplankton community
Arctic water
Fram Strait
temperature
Barents Sea
Atlantic water
salinity
environmental factor
Opis:: Relationships between the zooplankton community andv arious environmental factors (salinity, temperature, sampling depth and bottom depth) were established in the European Arctic Marginal Ice Zone (MIZ) using multivariate statistics. Three main zooplankton communities were identified: an Atlantic Shallow Community (AtSC), an Arctic Shallow Community (ArSC) anda Deep Water Community (DWC). All species belonging to AtSC andArSC were pooledandtheir relative abundances in the total zooplankton calculated with respect to a particular layer (surface, midan dd eep strata), regions (the Barents Sea, Fram Strait andt he waters off northern Svalbard), years (1999 or 2003) and seasons (spring or autumn). Mapping of the proportions of Arctic andA tlantic species ledto the conclusion that zooplankton from the MIZs do not exactly follow complementary water masses, although the general pattern of AtSC and ArSC dominance accords with the physical oceanography of the study area (AtW and ArW respectively). The mid layer proved to be a better predictor of mesozooplankton distribution than the unstable conditions near the surface.
Źródło:: Oceanologia; 2008, 50, 3; 363-389
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Changes in Atlantic water characteristics in the South-Eastern Mediterranean Sea as a result of natural and anthropogenic activities
Autorzy:: Said, M.A.
Gerges, M.A.
Maiyza, I.A.
Hussein, M.A.
Radwan, A.A.
Powiązania:: https://bibliotekanauki.pl/articles/47724.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: Atlantic water
change
Mediterranean Sea
Egypt
natural activity
anthropogenic activity
temperature
salinity
trend
water mass
subsurface water
water column
Źródło:: Oceanologia; 2011, 53, 1
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Estuaries of the Polish Baltic coastal zone
Estuaria polskiej strefy przybrzeżnej Bałtyku
Autorzy:: Paturej, E.
Powiązania:: https://bibliotekanauki.pl/articles/84909.pdf
Data publikacji:: 2006
Wydawca:: Akademia Pomorska w Słupsku
Tematy:: estuary
Polska
Baltic coastal zone
coastal zone
Baltic Sea
genesis
ecosystem
biological parameter
salinity level
temperature
pH
oxygen concentration
nutrient
organic matter
water body
river mouth
channel
water chemistry
chemical compound
sea water
toxic substance
Opis:: Estuaries are dynamic ecosystems characterized by great and constant variability of physicochemical gradients and biological parameters. Considerable fluctuations in salinity levels, temperature, pH, concentrations of oxygen, nutrients and organic matter are quite natural in such water bodies. There are many estuarine forms at the Polish Baltic Coast, including open-sea gulfs (the Gulf of Gdansk and the Pomeranian Gulf), water bodies connected to the Baltic Sea (Lake Łebsko) and periodically closed water bodies connected to the Baltic Sea by channels or through river-mouths (Lake Jamno and Lake Gardno). The mouths of large rivers, like Odra and Vistula, also show features of estuaries. Estuaries perform a very important function of specific natural filters for a variety of chemical compounds contained in waters flowing through this area. In this way they form an effective buffer zone that prevents the penetration of toxic biological substances into seawater.
Estuaria są dynamicznymi ekosystemami o bardzo dużej i ciągłej zmienności gradientów fizykochemicznych i parametrów biologicznych. Znaczne fluktuacje w poziomie zasolenia, temperatury, tlenu, pH, steżenia nutrientów oraz materii organicznej są naturalnym zjawiskiem w tych zbiornikach wodnych. Polskie Wybrzeże Bałtyckie obfituje w wiele form typu estuariowego, począwszy od zatopionych zatok w otwartym morzu (Zatoka Gdańska i Zatoka Pomorska) do zbiorników mających stałe połączenie z morzem (jezioro Łebsko) lub okresowo zamkniętych i przez kanały lub ujściowe odcinki rzek kontaktujących się z morzem (jeziora Jamno i Gardno). Cechy estuariów wykazują również ujścia wielkich rzek jak Odra i Wisła. Estuaria pełnia bardzo ważna funkcje jako swoiste naturalne filtry dla różnych związków chemicznych zawartych w przepływającej wodzie. Tworząc skuteczną strefę buforowa uniemożliwiają przedostawanie się wielu substancji biologicznie toksycznych do morza.
Źródło:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2006, 10
1643-0115
Pojawia się w:: Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:: Biblioteka Nauki