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投稿时间：2016-03-30 修订日期：2016-04-06
投稿时间：2016-03-30 修订日期：2016-04-06
中文摘要: 2016年2月大气环流的主要特征是北半球极涡呈偶极型分布，中高纬环流经向度大；太平洋副热带高压接近常年同期或偏强，南支槽较常年同期偏弱，不利于水汽向我国输送。2月全国平均降水量12.3 mm，较常年同期（17.4 mm）偏少29.3%，全国平均气温-1.6℃，接近常年同期（-1.7℃）。月内，我国中东部大部地区出现一次寒潮天气过程；西北地区出现今年首次沙尘天气过程。
中文关键词: 大气环流， 寒潮， 沙尘
Abstract:The main characteristics of the general atmospheric circulation in February 2016 are as follows: There are two polar vortex centers in the Northern Hemisphere. The circulation presents meridional patterns in middle high latitudes. The south branch trough behaves actively， and the mean position is located at 90°E nearby. The subtropical high is a little weaker than normal years, and the average south branch trough is also weaker than normal years. The monthly mean precipitation is 12.3 mm, and 29.4% less than normal （17.4 mm）. The monthly mean temperature is -1.6℃, and 0.1℃ higher than normal （-1.7℃）. There is one cold wave process nationwide. Meanwhile, sand dust weather first appeared in Northwest China this year.
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
| WANG Fan | National Meteorological Centre, Beijing 100081 |
| ZHANG Fanghua | National Meteorological Centre, Beijing 100081 |
引用文本：
王璠,张芳华,2016.2016年2月大气环流和天气分析[J].气象,42(5):643-648.
WANG Fan,ZHANG Fanghua,2016.Analysis of the February 2016 Atmospheric Circulation and Weather[J].Meteor Mon,42(5):643-648.
王璠,张芳华,2016.2016年2月大气环流和天气分析[J].气象,42(5):643-648.
WANG Fan,ZHANG Fanghua,2016.Analysis of the February 2016 Atmospheric Circulation and Weather[J].Meteor Mon,42(5):643-648.