摘要
利用１９８１和１９８２年５—９月欧洲中期数值预报中心（ＥＣＭＷＦ）的１００ｈＰａ高度场客观分析资料，分析了四川盆地典型的“西涝东旱”年（１９８１年）、“西旱东涝”年（１９８２年）５—９月青藏高原地区大气低频振荡特征及其与南亚高压活动的关系。结果表明：青藏高原地区大气低频振荡是显著的，南亚高压活动与此密切相关；１９８１和１９８２年南亚高压活动的低频振荡特征具有明显差异，东西方向基本上呈反位相变化；
In this paper,the Low-Frequency Oscillation(LFO) in atmosphere over the Qinghai-Xizang Plateau(QXP) and its relationship with the activities of South Asia High (SAH) were analyzed during May September in 1981 with “the flood in west and the drought in east” and in 1982 with “the drought in west and the flood in east” in Sichuan basin. The result shows that the LFO in atmosphere over the QXP is significant,it is close associated with the activities of the SAH and the features of LFO with the activities of the SAH have obvious differences between in 1981 and 1982,which are basically opposite phase in west-east direction. Those features have definite significance for the understanding of flood or drought anomaly in summer in Sichuan basin.
出处
《高原气象》
CSCD
北大核心
1996年第3期278-281,共4页
Plateau Meteorology
关键词
青藏高原
南亚高压
大气
低频振荡
The Qinghai-Xizang Plateau South Asia High Atmospheric lowfrequency oscillation
