气象2016，Vol.42Issue(6)：674-685,12.DOI:10.7519/j.issn.1000-0526.2016.06.003
中国东部7类暴雨异常环流型
Seven Anomalous Synoptic Patterns of Regional Heavy Rain in Eastern China
摘要
Abstract
The advantages of the anomalous synoptic systems over the traditional total ones in locating re-gional heavy rain (RHR)have been revealed by recent work of the anomaly-based synoptic chart.Forty-one daily heavy rain cases in eastern China from 1998 are grouped into seven patterns based on the anoma-lous synoptic systems.The seven patterns of anomalous synoptic systems associated with regional heavy rain include the shear in South China,vortex in South China,reversed trough in South China,shear and trough along the Yangtze River,vortex along the Yangtze River,vortex in North China and vortex in Northeast China.The RHR can be well located by the negative regions of anomalous geopotential height, wind anomalous convergence combined with high moisture anomaly,which is evident from both the verti-cal cross-sections and the 850 hPa horizontal distributions.This overcomes the shortage of traditional syn-optic chart in which total field systems and high moisture regions do not collocate with heavy rain areas.It is recommended that anomaly-based synoptic chart should be applied in the practice of short-term and me-dium-range forecasts by using the products of the current state-of-the-art operational numerical weather models.关键词
区域暴雨/传统天气图/扰动天气图/异常环流型Key words
regional heavy rain/traditional synoptic chart/anomaly-based synoptic chart/anomalous syn-optic patterns分类
大气科学引用本文复制引用
钱维宏,蒋宁,杜钧..中国东部7类暴雨异常环流型[J].气象,2016,42(6):674-685,12.基金项目
国家自然科学基金项目（41375703）和公益性行业（气象）科研专项（201306032）共同资助 （）
