Analysis of the Impact of Nepal＇s Giant Earthquake on China＇s Climate in 2015

• 作者: Chen Zhaohui Xie Jiemin
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: Giant earthquake Low pressure South Asia high Southwest monsoon China
• 年，卷（期）: 2016,（1）
• 页码范围: 36-40
• 页数: 5页
• 分类号: P

摘要

The situation of a great earthquake in Nepal from April to May in 2015 was described,and the abnormal atmospheric circulation and climate when the great earthquake occurred were analyzed. Because of the great influence of the great earthquake on the atmosphere,the atmospheric circulation and climate in the late stage of Nepal will be affected. The great earthquake had transient effects on China’s climate. Firstly,temperature from the ground to high altitudes increased abnormally; secondly,after the occurrence of the great earthquake,extremely low pressure generated in the earthquake region,and cold and warm airflow converged,so that heavy rainfall occurred to the southwest of the plateau. Thirdly,it cut off southwesterly airflow transporting water vapor to regions south of the Yangtze River,so that hot and dry weather appeared in the regions in late April. Moreover,the great earthquake affected China’s climate in a short term. Nepal’s giant earthquake increased zonal circulation cell at latitudes,and the circulation cell could make subtropical high over Western Pacific strengthen and extend westward to control regions south of the Yangtze River,so that hot and dry weather appeared in regions south of the Yangtze River in summer. In the next year after the great earthquake occurred,the earthquake is conducive to the strengthening and maintaining of Meiyu zone in the Yangtze River basin,and large floods will appear easily in the Yangtze River basin.