本文已被：浏览 962次 下载 2358次
投稿时间：2012-07-25 修订日期：2012-08-02
投稿时间：2012-07-25 修订日期：2012-08-02
中文摘要: 2012年6月大气环流特征为：北半球极涡呈单极型，中心位于北地群岛附近，较常年略偏强，中高纬环流多小波动；西太平洋副热带高压接近常年同期，南支槽位于90°E附近，槽前西南气流明显。2012年6月，全国平均气温为20.2℃，较常年同期（19.8℃）偏高0.4℃，全国大部地区气温接近常年同期或略偏高。全国平均降水量为108.5 mm，较常年同期（97.6 mm）偏多11.2%。月内，我国主要天气气候事件有：南方降水过程频繁，部分地区洪涝灾害较重；东北大部降水偏多，局部暴雨成灾；25个省（市、区）遭受风雹灾害，其中新疆、山东、吉林、甘肃、宁夏、陕西等省（区）局部受灾较重；西南气象干旱解除，黄淮、江淮气象干旱持续发展；强热带风暴泰利、杜苏芮先后影响我国。
中文关键词: 暴雨， 干旱， 台风， 雹灾
Abstract:The following are the main characteristics of the general circulation of atmosphere in June 2012: there is only one polar vortex center in the Northern Hemisphere with stronger strength in relation to normal years. More troughs occur in middle high latitudes, and lead to cold air to influence China. The subtropical high is near climatological normal. The south branch trough at 90°E is slightly stronger than normal years. The monthly mean temperature averaged over China is 20.2℃， which is 0.4℃ higher than the same period of normal years. The mean precipitation (108.5 mm) is 11.2% more than normal (97.4 mm). The precipitation occurs frequently in South China, while the rainfall is more than normal in North China. More than 25 provinces (regions) are attacked by the hail disaster, such as Xinjiang, Shandong, Gansu and so on. Drought sustains in Jianghuai and Huanghuai areas. The strong tropical storms “Talim” and “Doksuri” have successively affected China.
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
| CAO Yong | National Meteorological Centre, Beijing 100081 |
引用文本：
曹勇,2012.2012年6月大气环流和天气分析[J].气象,38(9):1155-1160.
CAO Yong,2012.Analysis of the June 2012 Atmospheric Circulation and Weather[J].Meteor Mon,38(9):1155-1160.
曹勇,2012.2012年6月大气环流和天气分析[J].气象,38(9):1155-1160.
CAO Yong,2012.Analysis of the June 2012 Atmospheric Circulation and Weather[J].Meteor Mon,38(9):1155-1160.