文献类型：期刊文献

英文题名：The north-south shift of the ridge location of the western Pacific subtropical high and its influence on the July precipitation in the Jianghuai region from 1978 to 2021

作者：Yang, Ke[1,2,3,4];Liu, Chunlei[1,2];Cai, Jiaxi[4];Cao, Ning[1,2,3];Liao, Xiaoqing[1,2,3];Su, Qianye[1,2,3];Jin, Liang[1,2,3];Zheng, Rong[1,2,3];Zhang, Qingkui[5];Wang, Lu[5]

机构：[1]Guangdong Ocean Univ, South China Sea Inst Marine Meteorol, Zhanjiang, Peoples R China;[2]Guangdong Ocean Univ, CMA GDOU Joint Lab Marine Meteorol, Zhanjiang, Peoples R China;[3]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang, Peoples R China;[4]Nanjing Univ Informat Sci & Technol, Nanjing, Peoples R China;[5]Fuyang Meteorol Bur, Fuyang, Anhui, Peoples R China

年份：2023

卷号：11

外文期刊名：FRONTIERS IN EARTH SCIENCE

收录：SCI-EXPANDED(收录号：WOS:001074805500001)、、Scopus(收录号：2-s2.0-85173613894)、WOS

基金：The authors thank two reviewers for reviewing this paper and providing constructive comments and suggestions.r This work was jointly supported by the National Natural Science Foundation of China (42075036 and 42275017); the LASG key open project (20230273) from the Institute of Atmospheric Physics, Chinese Academy of Sciences; Fujian Key Laboratory of Severe Weather (2021KFKT02); the scientific research start-up grant of Guangdong Ocean University (R20001); and the Postgraduate Education Innovation Project of Guangdong Ocean University (202144 and 202253).

语种：英文

外文关键词：western Pacific subtropical high; ridge location; Jianghuai region; precipitation; Nino 3.4; India-Burma trough intensity

外文摘要：The Jianghuai region is the area between the Yangtze River and the Huai River in China and is a densely populated agriculture region therefore, the economics and human activity there are significantly affected by the precipitation changes, particularly during the summer when extreme storms and droughts normally occur. It will be helpful if the summer precipitation changes can be predicted. The monthly ERA5 atmospheric reanalysis data from 1978 to 2021 are used in this study to investigate the relationship between the ridge latitudinal location of the western Pacific subtropical high (WPSH) and the precipitation in July over the Jianghuai region. The results show that the WPSH ridge location has an important impact on the amount and spatial distribution of the precipitation in this region. When the ridge was northward, an anomalous anticyclonic circulation will appear over the western Pacific, leading to the weakening of the summer monsoon and the reduction of moisture transport from the Indian Ocean, therefore decreasing precipitation in the Jianghuai region, while the situation is opposite when the ridge was southward. The Nino 3.4 index in March and the India-Burma trough intensity index in June have significant correlations with the July WPSH ridge location, and both can be used as precursors to predict the WPSH ridge location and, therefore, the precipitation in this region.