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Relationship Between Arctic Sea Ice Thickness Distribution and Climate of China

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Based on the simulated ice thickness data from 1949 to 1999,monthly mean temperature data from 160 stations,and monthly mean 1°× 1° precipitation data reconstructed from 749 stations in China from 1951 to 2000,the relationship between the Arctic sea ice thickness distribution and the climate of China is analyzed by using the singular value decomposition method.Climate patterns of temperature and precipitation are obtained through the rotated empirical orthogonal function analysis.The results are as follows.(1) Sea ice in Arctic Ocean has a decreasing trend as a whole,and varies with two major periods of 12-14 and 16 20 yr.respectively.(2) When sea ice is thicker in central Arctic Ocean and Beaufort-Chukchi Seas,thinner in Barents-Kara Seas and Baffin Bay-Labrador Sea,precipitation is less in southern China,Tibetan Plateau,and the north part of northeastern China than normal,and vice versa.(3) When sea ice is thinner in the whole Arctic seas,precipitation is less over the middle and lower reaches of Yellow River and north part of northeastern China,more in Tibetan Plateau and south part of northeastern China than normal,and the reverse is also true.(4) When sea ice is thinner in central Arctic Ocean,East Siberian Sea,Beaufort-Chukchi Seas,and Greenland Sea; and thicker in Baffin Bay-Labrador Sea,air temperature is higher in northeastern China,southern Tibetan Platean,and Hainan Island than normal.(5) When sea ice is thicker in East Siberian Sea 5 months earlier,thinner in Baffin Bay-Labrador Sea 7 15 months earlier,air temperature is lower over the north of Tibetan Plateau and higher in the north part of northwestern China than normal,and a reverse correlation also exists.

Arctic sea ice thicknessclimate of Chinatemperatureprecipitation

WANG Xuezhong、SUN Zhaobo、HU Banghui、TAN Yanke、ZENG Gang

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Institute of Meteorology,PLA University of Science and Technology,Nanjing 211101

Key Laboratory of Meteorological Disaster of Ministry of Education,Nanjing University of Information Science & Technology,Nanjing 210044

Supported by the National Basic Research and Development (973) Program of ChinaSupported by the National Basic Research and Development (973) Program of China国家自然科学基金

2012CB9552002010CB95190441075034

2012

10.1007/s-13351-012-0205-1

气象学报(英文版)
中国气象学会

气象学报(英文版)

SCI
影响因子：0.57
ISSN：0894-0525
年,卷(期)：2012.26(2)
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