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气象:2019,45(9):1335-1340
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2019年6月大气环流和天气分析
刘海知,何立富
(国家气象中心,北京 100081)
Analysis of the June 2019 Atmospheric Circulation and Weather
LIU Haizhi,HE Lifu
(National Meteorological Centre, Beijing 100081)
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投稿时间:2019-07-22    修订日期:2019-08-07
中文摘要: 2019年6月大气环流主要特征是:北半球高纬度地区极涡呈单极分布且偏强,亚洲中高纬为“两槽一脊”的环流形势,西太平洋副热带高压以偏南为主,强度略偏强。全国平均气温为20.6℃,较常年同期(20.0℃)偏高0.6℃,全国平均降水量为99.8 mm,基本与常年同期(99.3 mm)持平。月内,我国中东部地区出现4次大范围强降水天气过程,南方遭受严重暴雨洪涝灾害;同时,华北、黄淮和云南等地少雨高温,气象干旱持续;华北、黄淮出现阶段性高温;多省(区)遭受风雹袭击,部分地区受灾较重。
Abstract:The main characteristics of the general atmospheric circulation in June 2019 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 two-trough and one-ridge pattern. The strength of Western Paci-fic subtropical high was a little stronger than normal years. The monthly mean temperature in June was 20.6℃, 0.6℃ higher than the normal value, while the monthly mean precipitation amount was 99.8 mm, which is almost equal to the normal (99.3 mm). There were 4 heavy precipitation processes in central and eastern part of China, and in some places severe rainstorm and floods occurred in southern China. Meanwhile, North China, Huang-Huai Region and Yunnan Province, etc. rained less with high temperature during this month, causing drought to maintain. In addition, strong wind and hail disasters hit many provinces.
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基金项目:国家重点研发计划项目(2016YFC0402702)资助
引用文本:
刘海知,何立富,2019.2019年6月大气环流和天气分析[J].气象,45(9):1335-1340.
LIU Haizhi,HE Lifu,2019.Analysis of the June 2019 Atmospheric Circulation and Weather[J].Meteor Mon,45(9):1335-1340.