热带气象学报2011，Vol.27Issue(6)：814-822,9.DOI:10.3969/i.issn.1004-4965.2011.06.004
MJO对我国东部春季降水影响的分析
ANALYSIS OF THE MADDEN-JULIAN OSCILLATION IMPACTS ON THE SPRING RAINFALL IN EAST CHINA
摘要
Abstract
Phase composite analyses have been conducted to investigate the possible effects of th< Madden-Julian oscillation (MJO) on the spring rainfall anomalies in East China by using the Real-timi Multivariate MJO (RMM) index from Australian Meterological Bureau. The results show that the rainfal anomalies in the mid-lower Valley of Yangtze River are positive when the MJO shifts eastward to th< mid-eastern Indian Ocean, and the rainfall anomalies in southern China are positive when the MJO move: further eastward to the vicinity of Indo-China Peninsula and Indonesia, whereas spring rainfall anomalies ii East China are negative in the other MJO episodes. The MJO impacts on the precipitation in East China resul from the changes in large-scale atmospheric circulation together with the vorticity and vapor transportation a mid-lower levels in the troposphere.关键词
MJO活动/中国东部春季降水/环流异常/水汽通量散度异常Key words
MJO activity/ spring precipitation in East China/ atmospheric circulation anomalies/ vapor flux divergence anomalies分类
天文与地球科学引用本文复制引用
白旭旭,李崇银,谭言科,关志佳..MJO对我国东部春季降水影响的分析[J].热带气象学报,2011,27(6):814-822,9.基金项目
国家自然科学基金(U0833602)资助 （U0833602）
