Impacts of the MJO on winter rainfall and circulation in China

被引：0
|
作者：
Xiaolong Jia
Lijuan Chen
Fumin Ren
Chongyin Li
机构：
[1] China Meteorological Administration,National Climate Center
[2] Chinese Academy of Sciences,State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics
[3] PLA University of Science and Technology,Institute of Meteorology
来源：
Advances in Atmospheric Sciences | 2011年 / 28卷
关键词：
MJO; rainfall anomaly; subtropics; mid-high latitudes; vertical motion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Impacts of the MJO on winter rainfall and circulation in China are investigated using a real-time multivariate MJO index. Composite results using the daily rainfall anomalies and “rainy day” anomalies according to eight different MJO phases show that the MJO has considerable influence on winter rainfall in China. Rainfall anomalies show systematic and substantial changes (enhanced/suppressed) in the Yangtze River Basin and South China with the eastward propagation of the MJO convective center from the Indian Ocean to the western Pacific. When the MJO is in phase 2 and 3 (MJO convective center is located over the Indian Ocean), rainfall probability is significantly enhanced. While in phase 6 and 7 (MJO convective center is over the western Pacific), rainfall probability is significantly reduced.
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页码：521 / 533
页数：12
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