本文已被:浏览 219次 下载 1306次
投稿时间:2023-01-11 修订日期:2023-01-30
投稿时间:2023-01-11 修订日期:2023-01-30
中文摘要: 2022年11月大气环流的主要特征是:北半球极涡呈偶极型,东亚大槽偏弱,南支槽偏弱,副热带高压偏强。11月,全国平均降水为26.9 mm,比常年同期(20.2 mm)偏多33.2%;全国平均气温为4.8℃,较常年同期(3.3℃)偏高1.5℃。月内气温冷暖起伏较大,前中期冷空气活动偏弱,大部地区气温偏高,降水偏少;后期受强冷空气、活跃南支槽影响,气温大幅降低,降水显著增多。月内出现了1次全国型寒潮过程,影响范围广、降温幅度大,以及2次大范围持续性雾 霾天气过程。
中文关键词: 大气环流,寒潮,降水,雾-霾
Abstract:The main characteristics of the general atmospheric circulation in November 2022 are as follows. There were two polar vortex centers in the Northern Hemisphere. The East Asian trough and the southern branch trough were weaker than in the same period of normal years. The western Pacific subtropical high was stronger during this month. The monthly mean precipitation across China was 26.9 mm, which is 33.2% more than normal (20.2 mm). The monthly average temperature was 4.8℃, 1.5℃ higher than the temperature (3.3℃) in the same periods of normal years. The cold and warm temperatures fluctuated greatly during the month. The cold air was not so active in the early and mid dekads. Accordingly, the temperature was higher and the precipitation was less in most of China. However, in the later period, affected by the strong cold air and the active southern branch trough, the temperature dropped sharply and precipitation increased significantly. In addition, there were one nationwide cold wave process and two widespread persistent fog-haze weather processes.
文章编号: 中图分类号: 文献标志码:
基金项目:国家自然科学基金项目(42005095)资助
引用文本:
迟茜元,桂海林,王继康,尤媛,2023.2022年11月大气环流和天气分析[J].气象,49(2):249-256.
CHI Xiyuan,GUI Hailin,WANG Jikang,YOU Yuan,2023.Analysis of the November 2022 Atmospheric Circulation and Weather[J].Meteor Mon,49(2):249-256.
迟茜元,桂海林,王继康,尤媛,2023.2022年11月大气环流和天气分析[J].气象,49(2):249-256.
CHI Xiyuan,GUI Hailin,WANG Jikang,YOU Yuan,2023.Analysis of the November 2022 Atmospheric Circulation and Weather[J].Meteor Mon,49(2):249-256.