Wyniki wyszukiwania

1

Eddy-like features in the Faeroe-Shetland Channel in July of 1988 and 1989

100%

Schlichtholz P.

Bulletin of the Polish Academy of Sciences. Earth Sciences

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1994

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tom 42

|

nr 1

2

The hydrological characteiristics of the shelf waters in the Gulf of Alaska (Summer 1977)

86%

Furtak A., Majewicz A.

Oceanologia

|

1983

|

tom 14

3

On the sound scattering at 30 kHz and its relationship to the large-scale circulation pattern in the Greenland Sea

86%

Ostrowski M.

Oceanologia

|

1990

|

tom 29

4

Flow across south and east boundaries of the Norwegian Sea

86%

Druet C., Jankowski A.

Oceanologia

|

1991

|

tom 30

5

Variability of water flow in the Ezcurra Inlet

86%

Catewicz Z.

Oceanologia

|

1983

|

tom 15

6

Water mass exchange between the Gulf of Gdansk and the Baltic Sea

86%

Jankowski A.

Oceanologia

|

1985

|

tom 20

7

Changing views of Arctic protists (marine microbial eukaryotes) in a changing Arctic

72%

Lovejoy C.

Acta Protozoologica

|

2014

|

tom 53

|

nr 1 Spec.is. Marine Heterotrophic Protists

8

Benthic and planktic foraminifera as indicators of Late Glacial to Holocene paleoclimatic changes in a marginal environment: An example from the Southeastern Bay of Biscay

72%

Garcia J., Mojtahid M., Howa H., Michel E., Schiebel R., Charbonnier C., Anschutz P., Jorissen F. J.

Acta Protozoologica

|

2013

|

tom 52

|

nr 3

9

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Kongsfjorden and Hornsund hydrography - comparative study based on a multiyear survey in fjords of West Spitsbergen

72%

Prominska A., Cisek M., Walczowski W.

Oceanologia

|

2017

|

tom 59

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nr 4

A recent study has shown increased warming in the fjords of west Spitsbergen. Their location is critical, as they are situated along the main northward pathway of Atlantic Water (AW) which is a great source of heat to the Arctic Ocean and the fjords. In the light of ongoing warming, we aim to discuss differences between the fjords under northward transformation of oceanic waters. We compared summer hydrographic conditions in two fjords located in two opposite ends of west Spistbergen: Hornsund in the south and Kongsfjorden in the north. The study is based on high resolution CTD measurements collected during Arctic cruises between 2001 and 2015. The emphasis was put not only on differences in water temperature, salinity and water masses but also the freshwater content (FWC), AW transport and heat delivery to the fjords. In general, the water in Kongsfjorden is on average 18C warmer and its salinity is higher by 0.5 compared to Hornsund. It is also characterized by two times greater transport of AW and heat delivery to the fjord. On the other hand, Hornsund reveals two times higher FWC. Both fjords undergo a gradual warming due to an increased presence of Atlantic origin waters. The ongoing warming is accompanied by an increase in variability of temperature and salinity dependent on the domination of the Sørkapp Current (SC) or the West Spitsbergen Current (WSC) on the West Spitsbergen Shelf (WSS). Nonetheless, Hornsund remains more Arctic-type fjord compared to Kongsfjorden, due to stronger blocking by SC.

10

Inflow of Atlantic-origin waters to the Barents Sea along glacial troughs

72%

Matishov G. G., Matishov D. G., Moiseev D. V.

Oceanologia

|

2009

|

tom 51

|

nr 3

321-340

This paper discusses the role of glacial shelf topography in the formation of general oceanological and biological mechanisms in the Barents Sea. Analysis of geomorphological data and oceanographic observations obtained on board MMBI research vessels in 2001–08 has shown that: fluxes of Atlantic-origin waters pass along glacial troughs; the inflow of Atlantic waters to the Barents Sea from the west increased from 2001t ill 2007, although this advection began to weaken in 2008; vertical and horizontal thermohaline gradients intensified during the investigated period; a warm period similar to that of the 1930s was observed in the Barents Sea at the beginning of the 21st century.

11

On the possibility of convective overturning in the Slupsk Furrow overflow of the Baltic Sea

72%

Zhurbas V., Elken J., Paka V., Piechura J., Chubarenko I., Vali G., Golenko N., Shchuka S.

Oceanologia

|

2011

|

tom 53

|

nr 3

Closely spaced CTD transects across the Słupsk Furrow displayed a ‘downward- bending’ of salinity contours below the salinity interface on the southern flank due to a transverse circulation in the saline water overflow. Numerical simulation of a gravity current in an idealized channel with geometry, dimensions and initial density stratification all much the same as in the Słupsk Furrow was applied to verify whether the downward-bending could be transformed into an inverted density stratification. Some arguments in favour of the possibility of convective overturning due to the differential transverse advection beneath the gravity current, brought on by the numerical simulations, are discussed.

12

Physical oceanographic conditions and a sensitivity study on meltwater runoff in a West Greenland fjord: Kangerlussuaq

72%

Monteban D., Pedersen J. O. P., Nielsen M. H.

Oceanologia

|

2020

|

tom 62

|

nr 4PA

13

Tracing the signature of various frontal systems in stable isotopes (oxygen and carbon) of the planktonic foraminiferal species Globigerina bulloides in the Southern Ocean (Indian Sector)

72%

Khare N., Chaturvedi S. K.

Oceanologia

|

2012

|

tom 54

|

nr 2

Twenty-five surficial sediment samples, collected on board ORV Sagar Kanya during her 199th and 200th cruises along a north-south transect between latitudes 9.69◦N and 55.01◦S, and longitudes 80◦E and 40◦ E were studied for isotopic variations (values of δ18O and δ13C) of the indicator planktonic species Globigerina bulloides. The results indicate that from latitudes 9.69◦N to 15◦ S both these isotopes (δ18O and δ13C) fluctuated significantly. Between latitudes from around 15◦S to 30–35◦S δ18O values steadily increased, whereas δ13C showed a decreasing trend. However, to the south of latitudes 30–35◦S, both isotope values showed a similar response with a gradual increase up to latitude 50◦S, beyond which δ18O continued to increase while δ13C declined. The characteristic patterns of the values of both isotopes indicates that the signatures of different water masses are associated with various frontal systems and/or water masses across the transect. The signature of the Polar Front at around latitude 50◦S shows the specific response of the isotopic values (δ18O and δ13C) of G. bulloides. Such a response beyond 50◦S latitude is ascribable to the general decrease in the ambient temperature, resulting in a continuous increase in δ18O values, while δ13C values decrease as a result of reduced photosynthesis in regions approaching higher latitudes owing to low light penetration. To further corroborate our results, those of many such transects from geographically distinct regions need to be studied for isotopic variations in the calcareous shells of planktonic foraminiferal species. The results have the potential to be used as a proxy to assess the movement of frontal systems in southern high latitude regions.

14

Preliminary determination of the occurrence and movement of water masses in the regions of South Georgia Island, the Scotia Sea and the Antarctic Peninsula

72%

Grelowski A., Pastuszak M.

Oceanologia

|

1983

|

tom 14

15

Sea level variability in the eastern part of the Polish Baltic Sea coast 1975-2004

72%

Marosz K. J., Jakusik E.

Geographia Polonica

|

2010

|

tom 83

|

nr 1

16

Non-linear attenuation of gravity wind waves

72%

Naguszewski A., Massel S., Trapp W.

Oceanologia

|

1985

|

tom 20

17

Variability of the radiant heating rate at the border between water masses with different absorption properties - a theoretical prediction

72%

Matciak M.

Oceanological and Hydrobiological Studies

|

2006

|

tom 35

|

nr 2

18

Dense bottom waters in Storfjord and Storfjordrenna

72%

Piechura J.

Oceanologia

|

1996

|

tom 38

|

nr 2

19

An overview of the teta - S correlations in Fram Strait based on the MIZEX 84 data

72%

Schlichtholz P., Houssais M. N.

Oceanologia

|

2002

|

tom 44

|

nr 2

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).

20

Inherent optical properties and particulate matter distribution in summer season in waters of Hornsund and Kongsfjorden, Spitsbergen

58%

Sagan S., Darecki M.

Oceanologia

|

2018

|

tom 60

|

nr 1

Two Spitsbergen fjords, Hornsund and Kongsfjorden, are known for being under different hydrological regimes. The first is cold, separated from warm Atlantic water by East Spitsbergen Current, while Kongsfjorden is frequently penetrated by relatively warm Atlantic water. On the other hand, both are under strong influence of water discharge from glaciers and land freshwater input. During the period of observation in both fjords a dominant water mass was Surface Water, which originates mainly from glacial melt. The presence of suspended matter introduced with melt water in Surface Water is reflected by highest values of light attenuation and absorption coefficients recorded in areas close to glacier both in Hornsund and Kongsfjorden. In Hornsund the maximum light attenuation coefficient cpg(555) was 5.817 m−1 and coefficient of light absorption by particles ap(676) = 0.10 m−1. In Kongsfjorden the corresponding values were 26.5 m−1 and 0.223 m−1. In Kongsfjorden suspended matter of the size class 20–200 μm dominated over fractions smaller than 20 μm while in Hornsund dominating size fraction was 2–20 μm. The results provide an evidence of considerable range of variability of the optical properties mainly due to glacial and riverine runoff. The scale of variability of particulate matter in Kongsfjorden is bigger than in Hornsund. Most of the variability in Hornsund can be attributed to glaciers discharge and a presence of particles of mineral origin, while in Kongsfjorden the organic and mineral particles contribute almost equally to defining the optical properties of water.

Ograniczanie wyników

Eddy-like features in the Faeroe-Shetland Channel in July of 1988 and 1989

The hydrological characteiristics of the shelf waters in the Gulf of Alaska (Summer 1977)

On the sound scattering at 30 kHz and its relationship to the large-scale circulation pattern in the Greenland Sea

Flow across south and east boundaries of the Norwegian Sea

Variability of water flow in the Ezcurra Inlet

Water mass exchange between the Gulf of Gdansk and the Baltic Sea

Changing views of Arctic protists (marine microbial eukaryotes) in a changing Arctic

Benthic and planktic foraminifera as indicators of Late Glacial to Holocene paleoclimatic changes in a marginal environment: An example from the Southeastern Bay of Biscay

Kongsfjorden and Hornsund hydrography - comparative study based on a multiyear survey in fjords of West Spitsbergen

Inflow of Atlantic-origin waters to the Barents Sea along glacial troughs

On the possibility of convective overturning in the Slupsk Furrow overflow of the Baltic Sea

Physical oceanographic conditions and a sensitivity study on meltwater runoff in a West Greenland fjord: Kangerlussuaq

Tracing the signature of various frontal systems in stable isotopes (oxygen and carbon) of the planktonic foraminiferal species Globigerina bulloides in the Southern Ocean (Indian Sector)

Preliminary determination of the occurrence and movement of water masses in the regions of South Georgia Island, the Scotia Sea and the Antarctic Peninsula

Sea level variability in the eastern part of the Polish Baltic Sea coast 1975-2004

Non-linear attenuation of gravity wind waves

Variability of the radiant heating rate at the border between water masses with different absorption properties - a theoretical prediction

Dense bottom waters in Storfjord and Storfjordrenna

An overview of the teta - S correlations in Fram Strait based on the MIZEX 84 data

Inherent optical properties and particulate matter distribution in summer season in waters of Hornsund and Kongsfjorden, Spitsbergen