文献类型：期刊文献

英文题名：Recent global decrease in the inner-core rain rate of tropical cyclones

作者：Tu, Shifei[1,2];Xu, Jianjun[1,2,3];Chan, Johnny C. L.[4];Huang, Kian[1,2];Xu, Feng[1,2];Chiu, Long S.[5]

机构：[1]Guangdong Ocean Univ, South China Sea Inst Marine Meteorol, Zhanjiang, Peoples R China;[2]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang, Peoples R China;[3]Guangdong Ocean Univ, Shenzhen Inst, Shenzhen, Peoples R China;[4]City Univ Hong Kong, Sch Energy & Environm, Hong Kong, Peoples R China;[5]George Mason Univ, Dept Atmospher Ocean & Earth Sci, Fairfax, VA 22030 USA

年份：2021

卷号：12

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：SCI-EXPANDED(收录号：WOS:000636293700001)、、Scopus(收录号：2-s2.0-85103598616)、WOS

基金：This research is supported by the Guangdong Basic and Applied Basic Science Research Foundation (2019B1515120018), the Strategic Priority Research Program of Chinese Academy of Sciences through grant XDA20060503, the National Key R&D Program of China through grants 2018YFA0605604, and the Research Grants Council of the Hong Kong Special Administrative Region of China Grant CityU11301417. We thank Dr. Quanjia Zhong from Institute of Atmospheric Physics, Chinese Academy of Sciences and Lilong Zhao from Nanjing University of Information Science and Technology for their valuable suggestions on this work.

语种：英文

外文摘要：Heavy rainfall is one of the major aspects of tropical cyclones (TC) and can cause substantial damages. Here, we show, based on satellite observational rainfall data and numerical model results, that between 1999 and 2018, the rain rate in the outer region of TCs has been increasing, but it has decreased significantly in the inner-core. Globally, the TC rain rate has increased by 84% during this period, which is mainly contributed by an increase in rain rate in the TC outer region due to increasing water vapor availability in the atmosphere with rising surface temperature. On the other hand, the rain rate in the inner-core of TCs has decreased by 24 +/- 3% during the same period. The decreasing trend in the inner-core rain rate likely results mainly from an increase in atmospheric stability. How the rainfall intensity of tropical cyclones changes with climate change is not well known. Here, the authors show that while the rain rate in the outer region of TCs is clearly increasing between 1999 and 2018, it decreases significantly in the inner-core of TCs during 1999-2018.