| Relationship between Antarctic sea ice and the climate in summer of China |
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| 作者姓名： | 马丽娟 陆龙骅 卞林根 |
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| 作者单位： | Chinese Academy of Meteorological Sciences, Beijing 100081, China |
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| 基金项目： | We are thankful to Xiao Cunde and Wu Bingyi for contributing many worthy suggestions to this work. |
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| 摘 要： | The variations of sea ice are different in different regions in Antarctica, thus have different impacts on local atmospheric circulation and global climatic system. The relationships between the sea ice in Ross Sea and Weddell Sea regions and the synoptic climate in summer of China are investigated in this paper via diagnostic analysis methods by using global sea ice concentration gridded data covering Jan. 1968 through Dec. 2002 obtained from Hadley Center, combined with Geopotential Height on 500hPa and 100hPa over North Hemisphere and monthly precipitation and air temperatures data covering the corresponding period over 160 meteorological stations in China obtained from CMA （ China Meteorological Administration）. Results disclose that both these two regions are of indicative meanings to the climate in summer of China. The Ross Sea Region is the key sea ice region to the precipitation in Northeast China in summer. More sea ice in this region in September will result in less precipitation in Northeast China in the following June. Weddell Sea Region is the key sea ice region to the air temperature in Northeast China in summer. More sea ice in this region in September will contribute to lower air temperature in Northeast China in the following June.
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| 关 键 词： | 南极 海冰 气候变化 远程并置对比 |
| 收稿时间： | 2006-05-23 |
Relationship between Antarctic sea ice and the climate in summer of China |
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| Ma Lijuan,Lu Longhua,Bian Lingen.Relationship between Antarctic sea ice and the climate in summer of China[J].Chinese Journal of Polar Science,2006,17(1):1-8. |
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| Authors: | Ma Lijuan Lu Longhua Bian Lingen |
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| Abstract: | The variations of sea ice are different in different regions in Antarctica, thus have different impacts on local atmospheric circulation and global climatic system. The relationships between the sea ice in Ross Sea and Weddell Sea regions and the synoptic climate in summer of China are investigated in this paper via diagnostic analysis methods by using global sea ice concentration gridded data covering Jan.1968 through Dec.2002 obtained from Hadley Center, combined with Geopotential Height on 500hPa and 100hPa over North Hemisphere and monthly precipitation and air temperatures data covering the corresponding period over 160 meteorological stations in China obtained from CMA (China Meteorological Administration). Results disclose that both these two regions are of indicative meanings to the climate in summer of China. The Ross Sea Region is the key sea ice region to the precipitation in Northeast China in summer. More sea ice in this region in September will result in less precipitation in Northeast China in the following June. Weddell Sea Region is the key sea ice region to the air temperature in Northeast China in summer. More sea ice in this region in September will contribute to lower air temperature in Northeast China in the following June. |
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| Keywords: | Antarctic Sea-ice Correlation Analysis Teleconnection Climate Change |
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