ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
The characters of spatial-temporal variation of the Antarctic ice coverage and its effects on the atmospheric circulation
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Abstract:
The charaters of spatial-temporal variation of the polar ice are analysed using the Antarctic ice coverage area data of 1973-1982. A spectralanalysis has been made to determine the changes of the polar ice in the increasing and melting processes.It is shown that there exists a main os-ciallation in a period of 8.2 weeks in these processes for the total polar ice.The maximum rate of polar ice increasing and melting occurred res-spectively between May and June as well as November and December (in the Northern Hemisphere).Al the same Lime, it is found that the variation of the Antarctic ice coverage exerted a significant impact on the positional variations of the ridge line of the subtropical high over the northwest Pacific and of the tropical cyclones landing China.
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