Analysis of the Calamitous Weather and Large-scale Circulation in 2004
Wang Weiguo1 Rao Xiaoqin1 Kang Zhiming1 Ai Wanxiu2 (1.National Meteorological Center, Beijing 100081; 2.National Climate Center, Beijing 100081)
Based on analysis data of EC numerical model, real-time observation and statistical calamitous data, a synoptic analysis of the weather and the circulation situation in 2004 is made. The result shows that the continuous drought happened in North China, Northeast China and South China is closely related to the abnormal of the synoptic circulation. The interaction of the synoptic system under the favorable situation resulted in the calamitous weather such as heavy rain, thunderstorm and sandstorm etc. Having a good understanding of the synoptic situation and evolution character of the affecting weather system is very important to improve forecast accuracy of the calamitous weather and the disaster prevention.
【CateGory Index】： P429