热带气象学报2012，Vol.28Issue(2)：177-186,10.DOI:10.3969/j.issn.1004-4965.2012.02.004
ENSO与中国东部夏季降水的关联
THE RELATIONSHIPS BETWEEN ENSO AND JJA RAINFALL OVER THE EAST OF CHINA
摘要
Abstract
Related vectors for the difference between January and June of El Nino 3.4 and JJA 200 hPa and 850 hPa winds are calculated, and both JJA anomalous rainfall over the east of China and the west Pacific subtropical high after medium or strong El Nino/La Nina events are analyzed. The results indicated that at either high-or low-level circulation, the west Pacific subtropical high is sensitive to ENSO after the mid-1970s. In response to a decaying El Nino, the South Asian High is eastward in JJA, the west Pacific subtropical high is strong and located westward and southward, South China Sea summer monsoon and Indian monsoon are weakening, subtropical monsoon over on the south of the lower reach of the Yellow River is strong. Convergence zones of anomalous circulation are over the middle and lower reaches of the Yellow River and areas to its south. Anomalous JJA rainfall caused by El Niflo is probable over this south-west to north-east zone. As La Nina decays, roughly the contrary happens.关键词
气候学/亚洲夏季风/ENSO/中国夏季降水Key words
Climatology/ Asian summer monsoon/ ENSO/ JJA rainfall over the east of China分类
天文与地球科学引用本文复制引用
张礼平,张乐飞,曾凡平..ENSO与中国东部夏季降水的关联[J].热带气象学报,2012,28(2):177-186,10.基金项目
国家科技支撑项目(2009BAC51B05) （2009BAC51B05）
湖北省气象局科技发展基金重点项目(2011203)共同资助 （2011203）
