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The Difference of the Atmospheric Circulation Features and Dynamical Diagnosis about the Typical Meiyu Patterns of Southern Flood (Drought) and Northern Drought (Flood)
Author(s): 
Pages: 95-104
Year: Issue:  1
Journal: Chinese Journal of Atmospheric Sciences

Keyword:  典型南涝(旱)北旱(涝)梅雨大气环流特征差异动力诊断;
Abstract: 利用NCEP逐日再分析资料,采用合成分析和动力诊断方法比较研究了典型南涝(旱)北旱(涝)梅雨大气环流特征差异,逐一考察了近20种物理量对其主雨带位置的诊断识别能力.结果表明:典型南涝(旱)北旱(涝)梅雨极涡偏强(弱),亚欧中高纬槽脊振幅较大(小),中纬度110°E~150°E地区位势高度明显偏低(高),冷空气势力偏强(弱);相应南亚高压主体东段偏南(北);副高主体明显偏东(西),西伸脊线偏南(北)...
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