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气象:2024,50(4):514-520
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2024年1月大气环流和天气分析
谢超,桂海林,尤媛
(国家气象中心,北京 100081)
Analysis of the January 2024 Atmospheric Circulation and Weather
XIE Chao,GUI Hailin,YOU Yuan
(National Meteorological Centre, Beijing 100081)
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投稿时间:2024-03-19    修订日期:2024-04-04
中文摘要: 2024年1月大气环流的主要特征是:北半球极涡呈偶极型分布,欧亚中高纬环流呈纬向“两槽一脊”型,东亚大槽偏东。1月,全国平均降水量为16.3mm,较常年同期(14.1mm)偏多15.6%;全国平均气温-3.8℃,较常年同期(-4.8℃)偏高1.0℃。月内气温起伏较大,出现了1次全国型寒潮过程和2次大范围持续性雾 霾天气过程。其中20—22日的寒潮天气过程具有影响范围广、降温幅度大、大风持续时间长、暴雪极端性强等特点。
Abstract:The main characteristics of the general atmospheric circulation in January 2024 are as follows. There were two polar vortex centers in the Northern Hemisphere. The Eurasian mid- and high-latitude circulation showed a two-trough-one-ridge pattern. The East Asian trough was more eastward. The monthly mean precipitation (16.3 mm) over China was 15.6% more than normal (14.1 mm). The monthly average temperature was -3.8℃, which was 1.0℃ higher than that in the same period of normal years. Cold and warm temperatures fluctuated greatly during the month. There was one nationwide cold wave process and two widespread persistent fog-haze weather processes, among which the cold wave weather process from 20 to 22 January presented the characteristics of a wide range of influence, and cooling, long duration of strong wind and heavy snowstorm.
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基金项目:国家重点研发计划(2022YFC3701205)资助
引用文本:
谢超,桂海林,尤媛,2024.2024年1月大气环流和天气分析[J].气象,50(4):514-520.
XIE Chao,GUI Hailin,YOU Yuan,2024.Analysis of the January 2024 Atmospheric Circulation and Weather[J].Meteor Mon,50(4):514-520.