Influence of Interannual Variability of Antarctic Sea-Ice on Summer Rainfall in Eastern China

作     者：薛峰 郭品文 余志豪 

作者机构：Institute of Atmosphere Physics Chinese Academy of Sciences Beijing 100029 KLME Nanjing Institute of Meteorology Nanjing 210044 Department of Atmospheric Sciences Nanjing University Nanjing 210093 

出 版 物：《Advances in Atmospheric Sciences》 (大气科学进展（英文版）)

年 卷 期：2003年第20卷第1期

页      面：97-102页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：This study is supported byNational Key Program for Developing Basic Sciences(G1998040905 Part I) Chinese Academy of Sciences un-der Grant KZCX2-203 and the National Natural ScienceFoundation of China under Grants Nos.40075020 and40233027 

主　　题：Antarctic sea-ice interannual variability summer rainfall 

摘      要：Based on the Antarctic sea-ice coverage reanalysis data from the Hadlcy Center and other observational data during the 30-year period from 1969 to 1998, it is shown that Antarctic sea-ice coverage exhibits considerable interannual variability with a complex relation to El Ni?o and the South Oscillation (ENSO). Besides this, the ice maintains the seasonal persistence of the atmospheric circulation in high latitudes of the Southern Hemisphere. Thus it can be used as a predictor in short-term climate prediction. Both correlation and time series analyses demonstrate that summer rainfall in eastern China is closely related to Antarctic sea-ice coverage. When it is extended during boreal spring through summer, there is more rainfall in the lower reaches of the Yellow River of North China, and in contrast, less rainfall is found in the Zhujiang River basin of South China and Northeast China. A further analysis indicates that this rainfall pattern is related to the intensity of the East Asian summer monsoon caused by interannual variability of Antarctic sea-ice coverage.