ORIGINAL RESEARCH article
Front. Earth Sci.
Sec. Atmospheric Science
Climatological Characteristics and Influencing Factors of Pre-cipitation from Landfalling Tropical Cyclones in East China
Provisionally accepted
- Xiamen Meteorological Bureau, Xiamen, China
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This study employs statistical and factor analysis methodologies to examine the precipitation characteristics of tropical cyclones making landfall in the East China during the period 1960–2010, leveraging TC precipitation separation datasets and global reanalysis data. The findings indicate that while the annual total precipitation from landfalling TCs in East China exhibits relative stability, the maximum daily precipitation recorded at individual stations has shown a gradual increasing trend. Both the frequency of TC impacts on the region and the occurrence of TCs inducing extreme precipitation events (≥250 mm) display a distinct "single peak" pattern in their monthly distribution. Spatially, weather stations registering the highest frequencies of heavy rain and torrential rain are predominantly concentrated along the southeastern coastal areas, with a progressive weakening trend observed from coastal to inland regions. In terms of factors influencing TC precipitation intensity and distribution, among landfalling TCs in East China, those that turned northward after landfall exert the most significant influence on local wind and rainfall. Compared with TCs associated with weak precipitation, strong precipitation TCs are distinguished by slower movement velocities, higher wind speeds, and lower central pressure. Furthermore, TCs that develop under favorable thermal, dynamic, and moisture conditions tend to generate more intense precipitation.
Keywords: landfalling TC, East china, TC precipitation, spatiotemporal distribution, environmental factors
Received: 05 Jun 2025; Accepted: 24 Nov 2025.
Copyright: © 2025 Longbin, jing, zhengshuai and zhizhong. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Su zhizhong, 343625321@qq.com
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