Temat: Greenland sea - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Zmienność pokrywy lodów morskich w okresie maksimum ich rozwoju na Morzu Grenlandzkim w i połowie XX wieku
Changes in the sea-ice cover during their maximum development in the Grenland Sea in the first half of the twentieth century
Autorzy:: Adrychowska, K.
Powiązania:: https://bibliotekanauki.pl/articles/261045.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Klimatologów Polskich
Tematy:: zasięg lodu morskiego
pokrywa lodowa
Morze Grenlandzkie
sea ice extent
sea ice cover
Greenland Sea
Opis:: Artykuł przedstawia zmiany powierzchni lodów występujące w okresie maksimum ich rozwoju (w kwietniu) w rejonie między Grenlandią, Islandią i Spitsbergenem w latach: 1901-1939 oraz 1946-1956 oparte na analizach map lodowych udostępnionych przez Duński Instytut Meteorologiczny. Obliczeń powierzchni lodów dokonano w programie ArcGis10.0 w układzie współrzędnych North Pole Lambert Azimuthal Equal Area. Przeprowadzone pomiary powierzchni zlodzonej wskazują na dużą zmienność powierzchni lodów na obszarze między Spitsbergenem, Grenlandią i Islandią. W tym rejonie największe powierzchnie lodów wystąpiły w 1905, 1906 i 1911 roku, a najmniejsze w latach 1925 i 1930. Znacznie mniejsze zmiany powierzchni lodów miały miejsce w rejonie Cieśniny Duńskiej i na wodach między Islandią i SE Grenlandią. W tym rejonie największy rozwój pokrywy lodowej miał miejsce w 1934, 1935 oraz 1952 roku, a najmniejszy w latach 1939, 1929 i 1903. Na całym badanym obszarze największy rozwój lodów miał miejsce w okresie 1905-1918 z maksimum w latach 1906 (1638 tys. km2), 1911 i 1918. Minimum rozwoju pokrywy lodowej wystąpiło w 1933 roku (1037 tys. km2). W okresie 1901-1939 zaznacza się istotny trend malejący powierzchni lodów. Zmiany powierzchni lodów w latach 1946-1956 charakteryzują się dużą stabilnością oscylującą między 1300 a 1500 tys. km2.
The article present changes of sea ice extent during a period of time when they developed most (April) in the geographical area located between Greenland, Iceland and Spitsbergen during years 1901-1939 and 1945-1956 based on data shared by Danish Meteorological Institute. Surface calculations were made by using ArcGis 10.0 software, using geographical coordinate system North Pole Lambert Azimuthal Equal Area. Results of the calculations show high deviations of sea ice extent at investigated area. Biggest surface area noted in 1905, 1906 and 1911 and smallest in 1925 and 1930. Much smaller changes were observed and at the sea between Iceland and South-Eastern Greenland. During the period 1901-1939 a diminishing trend was observed there considering ice surface area. Years 1946-1956 remain with a stable amount of ice surface.
Źródło:: Problemy Klimatologii Polarnej; 2015, 25; 239-248
1234-0715
Pojawia się w:: Problemy Klimatologii Polarnej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Związki bilansu masy lodowców w rejonie Kongsfjordu (NW Spitsbergen) z pokrywą lodową mórz Grenlandzkiego i Barentsa
Correlation between the mass balance of glaciers in the Kongsfjorden area (NW Spitsbergen) and sea ice cover of the Barents and Greenland seas
Autorzy:: Styszyńska, A.
Powiązania:: https://bibliotekanauki.pl/articles/260913.pdf
Data publikacji:: 2002
Wydawca:: Stowarzyszenie Klimatologów Polskich
Tematy:: Morze Grenlandzkie
Morze Barentsa
lodowce
pokrywa lodowa
Barents Sea
glacier
ice cover
Greenland sea
Opis:: The sea ice cover of the Greenland and Barents seas is characterised by great seasonal and interannual changeability which has influence on radiation and heat balance of that region. This changeability is directly observed in changes in atmospheric circulation and further noted in changes in meteorological elements (mainly in air temperature, cloudiness, precipitation and wind). Changes in weather conditions determine both the value of losses of glacier masses in a given balance year and the value of ice masses accumulation. This article tries to find the answer to a question if and to what extent the variability of the extent and rate of the Barents and Greenland seas ice formation is directly reflected in changeability of glaciers masses balance in the region of Spitsbergen. This research was based on the mass balance of two small glaciers located in the region of Kongsfjord, i.e. Austre Brogger and Midre Lovén. The mean monthly values of sea ice cover observed in the Greenland and Barents seas in the period 1972-1994 were used in this research (the values calculated on the basis of 1-week values of these seas ice cover taken from NCDC - Asheville). The values of winter, summer and net balances of the said glaciers were drawn from article by Lefauconnier et al. (1999). In addition, the correlation was examined between the balance Austre Brogger and Midre Lovén glaciers and the changeability of atmospheric circulation described by Niedźwiedź ?circulation types? (2001). The research made use of standard statistical analysis (correlation and regression analysis). Statistically significant correlations have been noted between the values of winter balances of both examined glaciers and the size of ice cover of the Barents and Greenland seas at the initial stage of its formation - in November (r ~ -0.55÷0.64, adj. R2 ~ 0.30÷0.35). The result of analysis of multiple regression indicated that the strongest correlation with ice cover of the Greenland Sea occurs in September, whereas in the Barents Sea in December (R ~ 0.70÷0.83). Changes in sea ice cover observed in that time explain 44% and 65% of changeability in winter balance of Austre Brogger and Midre Lovén glaciers, respectively. These results suggest that the process of heat transfer from the ocean to the atmosphere may by very intensive when the sea is merely covered with ice in the areas on the way of main directions of air mass advection. This will provide favourable condition for clear domination of sea air masses resulting in the increase in air temperature (Styszyńska 2000) and precipitation in the region of NW Spitsbergen. The summer balance of the examined glaciers is influenced by the changes in ice conditions only to a small extent. The only significant correlation with sea ice condition of the Greenland Sea was noted in August. Lack of the discussed correlation in summer is attributed to the influence of insolation and radiation factors whose importance increase during the polar day (as indicated in research by Lefauconnier et al. (1999)).
Źródło:: Problemy Klimatologii Polarnej; 2002, 12; 133-146
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Pojawia się w:: Problemy Klimatologii Polarnej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

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: 4.

Tytuł:: Zmiany zlodzenia mórz Grenlandzkiego i Barentsa w świetle zmian wskaźnika intensywności Prądu Labradorskiego (1972-1994). Wstępne wyniki analizy
Changes in sea ice cover of the Barents and Greenland seas in the light of changes of the Labrador Current intensity index (1973-1994). Preliminary result of analysis
Autorzy:: Styszyńska, A.
Powiązania:: https://bibliotekanauki.pl/articles/260876.pdf
Data publikacji:: 2001
Wydawca:: Stowarzyszenie Klimatologów Polskich
Tematy:: pokrywa lodowa
cyrkulacja atmosfery
Prąd Labradorski
Morze Grenlandzkie
Morze Barentsa
ice cover
atmospheric circulation
Labrador Current
Greenland sea
Barents Sea
Opis:: The Barents and Greenland seas are characterised by great seasonal and interannual changeability in the ice cover. Research carried out by many authors prove that the ice regime of these seas is influenced, to a great extent, by large scalę changes in atmospheric circulation and by the ocean surface circulation of the North Atlantic and the Arctic Ocean. Such correlations arę mainly of teleconnection type and show phase shifts (among others Mysak 1995, Deser et. al. 2000). One of the elements of the sea surface circulation of the Atlantic Ocean is the Labrador Current. The intensity of this current changes in time. In the periods when the Labrador Current becomes strong, its waters form vast anomalies in the sea surface temperaturę in the NW Atlantic. Further they spread eastwards along the north edge of the North Atlantic Current and with some delay, have influence on the atmospheric circulation in the central and east part of the North Atlantic (Marsz 1997, 1999). The way how the changes in the intensity of the Labrador Current influence the climate nas not been discovered yet. The intensity of this current can be defined by means of an index (WPL - Labrador Current Intensity lndex) established by Marsz (Internet). This work examines if there is direct correlatton between the changes in the sea-ice cover of the Barents and Greenland seas and the variability of the intensity index of the Labrador Current. The research madę use of homogenous data concerning a week-old sea ice cover observed at the analysed seas and the values of intensity index of the Labrador Current in the period January 1972 until December 1994 given by Marsz (obtained from NIC and NCDC - Asheville). It has been stated that over the examined 23-year period (1972-1994) the mean monthly the sea-ice cover in the Barents Sea indicates to strong correlation with the changes in the value of the intensity index of the Labrador Current (Table 1, Fig. 1). The changes in WPL result in the rhythm of changes in the sea-ice cover of the Greenland Sea only in winter (Table 2, Fig. 2). The occurrence of anomalies in the sea surface temperatures in the region SE of New Foundland seem to have great influence on the later formation (after few or several months) of the sea-ice cover in the Barents Sea (Fig. 1, 3. 4, formula 1-3). Changes in the intensity of Labrador Current in a given year explain 30% up to 50% changeability of the sea-ice cover developing in that sea from January to July in the following year (Table 1, Fig. 3). The area of the sea-ice cover in the Greenland Sea is mainly influenced by the intensity of the Transpolar Drift and East-Greenland Current transporting considerable amount of ice from the Arctic Ocean. Only during fuli winter season, from January to March, the correlation between the intensity of the Labrador Current and the sea-ice cover reaches statistical significance (Table 2). The results of the carried out analysis point to significant influence of advection factor on the sea-ice cover of the examined seas. In both analysed seas the phenomenon is connected to both the character and intensity of the Atlantic waters flow and to greater frequency of occurrence of specified forms of air circulation in the region of central and eastern part of the North Atlantic, possible at a given distribution of anomalies in surface waters of the North Atlantic.
Źródło:: Problemy Klimatologii Polarnej; 2001, 11; 93-104
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Pojawia się w:: Problemy Klimatologii Polarnej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Warunki hydrometeorologiczne w czasie rejsu s/t Jan Turlejski na Grenlandię latem 1960 roku
Hydrometeorological conditions during the voyage s/t "Jan Turlejski" to Greenland the summer 1960
Autorzy:: Zblewski, S.
Powiązania:: https://bibliotekanauki.pl/articles/261027.pdf
Data publikacji:: 2014
Wydawca:: Stowarzyszenie Klimatologów Polskich
Tematy:: s/t „Jan Turlejski”
Grenlandia
lód morski
„storis”
góry lodowe
mgła
Greenland
sea ice
“storis”
icebergs
fog
Opis:: W pracy analizie poddano warunki hydrometeorologiczne występujące podczas podróży s/t „Jan Turlejski” na Islandię i wody SW Grenlandii. Odnotowano kilka niebezpiecznych dla żeglugi zjawisk takich jak mgły powodujące obniżenie widzialności poziomej oraz niebezpieczeństwo zderzenia z górami lodowymi. Na wodach SW Grenlandii, na zachód od Przylądka Farewell statek napotkał pole zwartego lodu morskiego wskazujące na występowanie w lipcu 1960 roku „storisu”. W polu lodu morskiego dryfowały również różnej wielkości góry lodowe.
Cruise of s/t "Jan Turlejski" to Greenland in summer 1960 took one month. During the trip, as a result of the mists, hydrometeorological conditions repeatedly worsened. Hazardous conditions were also recorded in SW Greenland waters, where drifting ice fields created by the ice throughout many years ("storis") were encountered twice. Some of ice reached the height of 3 meters above the water. The ship also encountered icebergs, one of which was 26 metres high above sea level. During the whole trip, there was no storm. Thanks to Greenland trip, in a few days on board in SW Greenland waters, it was possible to recognize the new fisheries, to investigate the possibility of using the right equipment and fishing techniques.
Źródło:: Problemy Klimatologii Polarnej; 2014, 24; 109-118
1234-0715
Pojawia się w:: Problemy Klimatologii Polarnej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Greenland whales and walruses in the Svalbard food web before and after exploitation
Autorzy:: Weslawski, J.M.
Hacquebord, L.
Stempniewicz, L.
Malinga, M.
Powiązania:: https://bibliotekanauki.pl/articles/47767.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: Balaena mysticetus
food web
plankton
walrus
whale
Arctic
coastal ecosystem
Svalbard Archipelago
sea mammal
Odobaenus rosmarus rosmarus
exploitation
benthic organism
Greenland whale
Opis:: Between 1600 and 1900 two numerous and ecologically important large marine mammals were extirpated in the Svalbard archipelago. These were the pelagic-feeding Greenland whale (Balaena mysticetus) and the benthic-feeding walrus (Odobaenus rosmarus rosmarus), the initial stocks of which prior to exploitation are estimated to have numbered approximately 46 000 and 25 000 animals respectively. Their annual food consumption at that time is estimated to have been some 4 million tons of plankton and 0.4 million tons of benthic organisms. Assuming that the primary and secondary production of the shelf/coastal ecosystem in the 16th century (before the peak of the Little Ice Age) was similar to that of the present day, the authors have concluded that a major shift in the food web must have occurred after the Greenland whales and walruses were eliminated. Planktonivorous seabirds and polar cod (Boreogadus saida) very probably took advantage of the extirpation of the Greenland whales, while eiders (Somateria mollissima) and bearded seals (Erignathus barbatus) benefited from the walrus's extinction. In turn, the increased amount of pelagic fish provided food for piscivorous alcids and gulls, and may have given rise to the huge present-day seabird colonies on Svalbard.
Źródło:: Oceanologia; 2000, 42, 1
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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