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投稿时间：2010-04-20 修订日期：2010-04-27
投稿时间：2010-04-20 修订日期：2010-04-27
中文摘要: 2010年3月大气环流主要特征如下：北半球高纬度地区有3个不同强度的极涡，中高纬度地区环流呈现三波型分布，三个大槽的强度偏弱，南支槽较多年平均位置略偏东，强度偏弱。西太平洋副热带高压呈东西带状分布，与常年同期相比明显偏强，副高西脊点已经西伸至印度洋一带。2010年3月全国平均气温为3.4 ℃，接近常年同期,东北、华北和新疆北部气温明显偏低，西南大部气温明显偏高。全国平均降水量为32.3 mm，较常年同期偏多4.2 mm。月内出现三次冷空气过程和七次沙尘天气过程。
中文关键词: 冷空气, 沙尘, 干旱, 暴雨
Abstract:The following are the main characteristics of the general circulation of atmosphere in March 2010. There were three polar vortex centers in the Northern Hemisphere. The circulation presents a three wave pattern in middle high latitudes. The intensity of three main deep troughs is weaker than that of the trough in average conditions. The south branch trough is easterly and weaker than the normal years. The subtropical high shows an east west belt figure and stronger than the corresponding time of normal years. The western ridge spot of high extends to the Indian Ocean. The average temperature (3.4 ℃) is equal to the corresponding time of normal years and the average precipitation (32.3 mm) is more than 4.2 mm compared with the corresponding time of normal years during March 2010. There were three cold air processes and seven sand and dust processes in the month.
keywords: cold air, dust, drought, heavy rain
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基金项目:
| Author Name | Affiliation |
| LI Yong | National Meteorological Center, Beijing 100081 |
引用文本：
李勇,2010.2010年3月大气环流和天气分析[J].气象,36(6):128-133.
LI Yong,2010.Analysis of Atmospheric Circulation and Weather in March 2010[J].Meteor Mon,36(6):128-133.
李勇,2010.2010年3月大气环流和天气分析[J].气象,36(6):128-133.
LI Yong,2010.Analysis of Atmospheric Circulation and Weather in March 2010[J].Meteor Mon,36(6):128-133.