北太平洋夏季大气环流的持续性异常及其对中国天气的影响  

NORTH PACIFIC SUMMER PERSISTENT ATMOSPHERIC CIRCULATION ANOMALY WITH ITS EFFECTS ON CHINA WEATHER

作　　者：张存杰[1,2] 吴洪宝[1,2] 王盘兴 章基嘉[1,2] 

机构地区：[1]南京气象学院气象学系 [2]国家气候中心

出　　处：《南京气象学院学报》1997年第3期282-292,共11页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金

摘　　要：对太平洋北部持续性异常的研究表明，正、负异常的形势从发生、发展到消亡的演变过程十分相似，它们都始于东亚及西太平洋区域距平形势的变化，并在北太平洋及东亚地区出现一规则排列的距平异常区域，东亚及整个北半球的大气环流也相应地发生变化。太平洋北部环流的持续性异常对东亚特别是中国夏季的天气异常有重要影响。诊断分析和数值试验表明，夏季太平洋北部大气环流发生持续性异常与太平洋中低纬的海温异常关系密切。This paper concerns the persistent anomaly of North Pacific atmospheric circulations, indicating that the genesis, development and decay of positive anomaly is in pattern closely similar to the negative, both originating from the variation in the departure situation over east Asia and the western Pacific, with regularly ranging anomaly sectors in the North Pacific and east Asia, accompanied by corresponding change in atmospheric circulations over east Asia and the whole northern hemisphere; persistent anomaly of Northern Pacific circulations has major effect on weather over China. Diagnosis and numerical studies show a very close relation between persistent summer anomaly in the North Pacific circulation and SSTA of mid and lower latitudes.

关 键 词：北太平洋 大气环流异常 中国 天气异常 SST异常 

分 类 号：P44[天文地球—大气科学及气象学] P434