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文章摘要
引用本文:尤悦,张涛,陈义.2017.2017年3月大气环流和天气分析.气象,43(6):762-768.
2017年3月大气环流和天气分析
Analysis of the March 2017 Atmospheric Circulation and Weather
投稿时间:2017-04-20  最后修改时间:2017-04-25
DOI:10.7519/j.issn.1000-0526.2017.06.013
中文关键词: 大气环流,冷空气,暴雨,强对流
英文关键词: atmospheric circulation, cold air, torrential rain, severe convection
基金项目:国家自然科学基金项目(41375051)和国家重点基础研究发展计划(973计划)(2013CB430106)共同资助
作者单位
尤悦 国家气象中心北京 
张涛 国家气象中心北京 100081 
陈义 上海海洋气象台上海 201306 
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中文摘要:
      2017年3月大气环流的主要特征是极涡偏强且呈单极型分布,中高纬环流呈4波型,西太平洋副热带高压强度较常年偏弱,南支槽强度较常年偏强。3月全国平均气温4.5℃,较常年同期偏高0.4℃;全国平均降水量36.2 mm,比常年同期(29.5 mm)偏多22.7%。月内我国东部地区有2次中等强度冷空气过程;南方地区有3次区域性暴雨天气过程;北方地区有2次沙尘天气过程;江苏、湖南等省局地遭受风雹袭击。
英文摘要:
      The main characteristics of the general atmospheric circulation are as follows. There was one polar vortex center in the Northern Hemisphere, stronger than usual. The circulation in Eurasian middle high latitudes showed a four wave pattern. The strength of Western Pacific subtropical high was a little weaker than normal. While the south branch trough was a little stronger than normal. The monthly mean temperature was 4.5℃, 0.4℃ higher than normal and the monthly mean precipitation amount was 36.2 mm which is more than normal by 22.7%. Two waves of cold air processes happened in this month, and three regional torrential rain processes occurred during the same period. There were mainly two dust weather events seen in the northern part of China. Besides, severe convection weather appeared in Jiangsu and Hunan.
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