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投稿时间:2022-04-30 修订日期:2022-05-09
投稿时间:2022-04-30 修订日期:2022-05-09
中文摘要: 2022年3月主要的环流特征是极涡呈偶极型分布,强度偏弱;中高纬环流异常呈4波型,亚洲环流较平直,西太平洋副热带高压强度较常年略偏强,南支槽较常年偏弱。影响我国冷空气总体较少,月内仅出现1次强冷空气过程,导致3月大部分地区显著偏暖,全国平均气温为7.2℃,较常年同期偏高2.4℃,为1961年以来历史同期第一高;全国平均降水量为36.7 mm,较常年同期(29.4 mm)偏多25%。月内出现3次大范围降水过程,并伴随有不同程度的强对流天气,多省遭受风雹袭击,局部地区受灾较重。此外,北方地区出现两次沙尘天气过程;黄淮、江淮北部发生干旱。
中文关键词: 大气环流,冷空气,强对流,沙尘
Abstract:The main characteristics of the general atmospheric circulation in March 2022 are as follows. There were two polar vortex centers in the Northern Hemisphere. The 500 hPa geopotential height presented the distribution of an anomalous four-wave pattern in the mid-high latitude of Northern Hemisphere and the air flow was straight in Asia. The strength of Western Pacific subtropical high was a little higher than that in normal years, and the south branch trough was a little weaker. There was only one strong cold front process in March. The national average temperature in March was 7.2℃, 2.4℃ higher than the normal and recorded the first in the same period since 1961. The monthly mean precipitation amount was 36.7 mm, 25% more than in normal period (29.4 mm). Three rainfall processes occurred in this month, causing severe weather such as heavy rain and thunderstorm. In addition, there were two large-scale sand-dust weather processes in northern China. Droughts appeared and developed in Huanghuai Region and Jianghuai Region.
文章编号: 中图分类号: 文献标志码:
基金项目:
Author Name | Affiliation |
MAI Zi | National Meteorological Centre, Beijing 100081 |
ZHANG Tao | National Meteorological Centre, Beijing 100081 |
引用文本:
麦子,张涛,2022.2022年3月大气环流和天气分析[J].气象,48(6):794-800.
MAI Zi,ZHANG Tao,2022.Analysis of the March 2022 Atmospheric Circulation and Weather[J].Meteor Mon,48(6):794-800.
麦子,张涛,2022.2022年3月大气环流和天气分析[J].气象,48(6):794-800.
MAI Zi,ZHANG Tao,2022.Analysis of the March 2022 Atmospheric Circulation and Weather[J].Meteor Mon,48(6):794-800.
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