本文已被：浏览 771次 下载 1093次
中文摘要: 利用NCEP NCAR提供的OLR和气象要素场再分析资料,对2003年6～7月淮河流域特大暴雨期间西南季风和东亚季风以及热带低纬地区环流的异常特征及其对梅雨暴雨的贡献进行了分析。结果表明,暴雨期间,长江流域附近地区维持准稳定的比常年明显偏强的南风带,北方冷空气亦比常年偏强;三次强降雨过程,低层均表现为稳定的强南风与阶段性增强的偏北气流的经向辐合。三次强降水过程中有两次,来自西北太平洋的东南气流的水汽输送占主导地位。异常环流分析表明,淮河流域强降雨时段,东南亚季风和南海季风异常偏弱;赤道西北太平洋地区东风气
中文关键词: 淮河流域，特大暴雨，低纬环流
Abstract:The features of low latitude circulation and its role during the 2003 heavy rain period over the Huaihe River valley are analyzed. The results show that convergence of extremely strong southern wind and extremely strong northern wind caused the heavy rain. The strong southern wind composed mainly of south-eastern wind which transported warm moisture from tropical north-west Pacific to the Huaihe River valley. During the heavy rain period, the southwest monsoon is weaker than normal. The reason of the abnormal characteristics of weak southwest monsoon and strong southeast wind are also analyzed here.
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
引用文本：
鲍媛媛,李锋,矫梅燕,2004.2003年淮河流域特大暴雨期间低纬环流分析[J].气象,30(2):25-29.
,2004.Analysis of Low-latitude Circulation of the Heavy Rain during 2003 Meiyu Season over Huaihe River Valley[J].Meteor Mon,30(2):25-29.
鲍媛媛,李锋,矫梅燕,2004.2003年淮河流域特大暴雨期间低纬环流分析[J].气象,30(2):25-29.
,2004.Analysis of Low-latitude Circulation of the Heavy Rain during 2003 Meiyu Season over Huaihe River Valley[J].Meteor Mon,30(2):25-29.