Związki temperatury powietrza w rejonie Półwyspu Antarktycznego ze zmianami wielkości pokrywy lodowej mórz Amundsena, Bellingshausena i Weddella (1973-1996)

• Autorzy: Styszyńska A.

Warianty tytułu

EN

Relationships between air temperature in the region of the Antarctic Peninsula and changes in the sea ice cover in the Amundsen, Beilingshausen and Weddell seas (1973-1996)

• Języki publikacji: PL

Abstrakty

EN

This article deals with the relationship between air temperature in the region of the Antarctic Peninsula and the changes in the sea ice cover of the seas adjacent to West Antarctida. The Bellingshausen and Amundsen seas are characterised by large variability in the sea ice cover both a within one year and from year to year (see tab. 3-5, Fig. 1-3). Synchronic correlations occurring between the ice edge and the air temperature observed at 14 chosen meteorological stations in the region of the Antaretic Peninsula (see tab. 1) have been analysed in this work. The above mentioned analysis used the data concerning the northern extent of the Antarctic sea ice cover (concentrated - 10% and more) at each 10 degrees of longitude worked out by TH. Jacka for the period 1973-1996 and the monthly mean air temperatures at the chosen stations for the same observational period taken from the Climate Data Sets worked out by the same author and completed by the Monthly Climatic Data for the World. The examination of synchronic correlations between the ice edge at different degrees of longitude and the air temperature at the chosen stations pointed to a number of statistically significant correlations occurring in different regions. The air temperature at the stations located on the western coast of the Antarctic Peninsula and the South Shetlands pointed to strong, statistically significant correlations wit h the winter and spring ice cover in two regions (see tab. 6-11). In the direct vicinity of the Antarctic Peninsula (500-70"W) these correlations were positive and farther west, in the region 1100-150oW, these correlations were also strong but negative. The most southward located stations, i.e. Faraday, Rothera and San Martin also in summer and autumn showed strong negative correlation between ice edge but with the region located more westward 1600W -180° (see tab. 6-5). Similar characteristic features of the distribution of the examined relationship were observed at the Signy, Orcadas and Grytviken stations located on the Weddell Sea. The statistically significant positive correlations occurred in the direct vicinity of the above mentioned stations and similar but negative correlations in the region of 1300-1600W (see tab. 11). At the Esperanza and Marambio stations located in the northern part of the Antarctic Peninsula and the Punta Arenas which is far northwards, the air temperature showed only few significant correlations with the ice edge distribution occurring in different seasons of a year. The results of the analysis pointed to the following conclusion that the changes in the air temperature at the stations of the Antarctic Peninsula were influenced not only by the changes in the winter and spring ice cover in the closest vicinity of these stations but also by the changes occurring in the farther areas. The defined in the course of this analysis area, i.e. 130°-150°W seems to be one of the important centres where the interaction between the ocean and the atmosphere takes place.

Słowa kluczowe

PL

temperatura powietrza; pokrywa lodowa; temperatura wody

EN

air temperature; ice cover; water temperature

• Wydawca: Stowarzyszenie Klimatologów Polskich
• Czasopismo: Problemy Klimatologii Polarnej
• Rocznik: 1999
• Tom: nr 9
• Strony: 193--233
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Styszyńska A.

• Katedra Meteorologii i Oceanografii Nautycznej, Wydział Nawigacyjny Wyższej Szkoły Morskiej w Gdyni

Bibliografia

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