Journal of Arid Meteorology ›› 2022, Vol. 40 ›› Issue (2): 179-186.DOI: 10.11755/j.issn.1006-7639(2022)-02-0179

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Climatic anomalous features and major meteorological disasters in China in summer of 2021

TANG Yi1,2,3(), CAI Wenyue2,3(), ZHAI Jianqing2, WANG Suping4, LIU Yuan2(), CHEN Yixiao2, GAO Ge2, WANG Guofu2   

  1. 1. Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
    2. National Climate Centre, Beijing 100081, China
    3. State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China
    4. Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China
  • Received:2021-11-16 Revised:2022-02-10 Online:2022-04-30 Published:2022-05-10
  • Contact: CAI Wenyue, LIU Yuan


唐懿1,2,3(), 蔡雯悦2,3(), 翟建青2, 王素萍4, 刘远2(), 陈逸骁2, 高歌2, 王国复2   

  1. 1.中国地质大学环境学院大气科学系,湖北 武汉 430074
    2.国家气候中心,北京 100081
    3.中国气象科学研究院灾害天气国家重点实验室,北京 100081
    4.中国气象局兰州干旱气象研究所,甘肃 兰州 730020
  • 通讯作者: 蔡雯悦,刘远
  • 作者简介:唐懿(1997— ),女,硕士生,主要从事气象灾害诊断分析. E-mail:
  • 基金资助:


According to “the Regulations on Monitoring and Evaluation of Regional Important Processes” issued by China Meteorological Administration in 2019, the basic situations of China’s climate and main meteorological disasters in summer 2021 are comprehensively analyzed based on the meteorological observation data of more than 2400 ground stations in China from 1961 to 2021. The results are as follows: (1) In the summer of 2021, both the average temperature and the average precipitation were higher than that in the same period of the previous years. The rainy season in the north started earlier with enhanced intensity, while it delayed in the south with weakened intensity. These two factors, together with the decreased number of landing typhoons, contributed to the fact that the summer precipitation zones dominated North China. (2) In the summer of 2021, China’s climate conditions were generally worse than normal, the situation of meteorological disasters was complicated and severe, accompanied with frequent occurrences of extreme weather and climate composite events, including flood, heat wave and drought, and moreover, the disasters exhibited periodic and regional features. The number of regional rainstorm processes was 4.9 times lower than that in previous summers, but the extremeness was much stronger. North China, Huanghuai, Jianghan and other places have suffered from severe rainstorms and floods consecutively. Regional high temperature occurred frequently and periodically. The number of regional high temperature processes was 3.4 times higher than that in previous summers, which mainly impacted Huanghai, Jiangnan, South China, the east of Northwest China, the west of Inner Mongolia and the south of Xinjiang. Meteorological droughts appeared in the south and the north simultaneously, with significant regional, periodic and compounding characteristics. And the number of regional drought processes was 1.1 times higher than that in previous summers. South China and Northwest China witnessed the compound development of high temperature and drought.

Key words: climatic anomalous characteristics, regional extreme weather process, major meteorological disasters, summer of 2021



关键词: 气候异常特征, 区域极端天气过程, 主要气象灾害, 2021年夏季

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