Climatological and Seasonal Variations of the Tropical Cyclone Genesis Potential Index Based on Oceanic Parameters in the Global Ocean

作     者：PAN Lixia WANG Xin ZHOU Lei WANG Chunzai PAN Lixia;WANG Xin;ZHOU Lei;WANG Chunzai

作者机构：State Key Laboratory of Tropical OceanographySouth China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Innovation Academy of South China Sea Ecology and Environmental EngineeringChinese Academy of SciencesGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)Guangzhou 511458China University of Chinese Academy of SciencesBeijing 100049China School of OceanographyShanghai Jiao Tong UniversityShanghai 200030China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519080China 

出 版 物：《Journal of Ocean University of China》 (中国海洋大学学报（英文版）)

年 卷 期：2021年第20卷第6期

页      面：1307-1315页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：the Strategic Priority Re-search Program of the Chinese Academy of Sciences(No.XDA20060502) the National Key Research and Devel-opment Program of China(No.2019YFA0606701) the National Natural Science Foundation of China(Nos.41925024 and 41731173) the Pioneer Hundred Talents Program of the Chinese Academy of Sciences,the Leading Talents of Guangdong Province Program,Innovation Academy of South China Sea Ecology and Environmental Engineering,Chinese Academy of Sciences(No.ISEE2018PY06) the Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Lab-oratory(Guangzhou)(No.GML2019ZD0306) 

主　　题：North Indian Ocean tropical cyclone genesis potential index 

摘      要：This study investigates the global performance of the tropical cyclone(TC)genesis potential index based on oceanic parameters(GPI_(ocean))proposed by Zhang et al.(2016).In six major TC formation basins,GPI_(ocean)can represent the seasonal variations of TC genesis over most basins,except for the North Indian Ocean(NIO).The monthly climatological GPI_(ocean)shows only a single peak in the NIO,which cannot describe the bimodal pattern of the annual cycle of TC *** determine the cause of the poor performance of GPI_(ocean)in the NIO,the relative contributions of different parameters related to GPI_(ocean)are calculated and compared with those related to the genesis potential index developed by Emanuel and Nolan(2004)(GPI04).Results show that the net longwave radiation on the sea surface is responsible for the single peak of TC genesis in the NIO in boreal *** with GPI04,vertical wind shear is not involved in GPI_(ocean).Vertical wind shear is the dominant factor inhibiting TC genesis in the NIO in boreal ***,the absence of vertical wind shear in GPI_(ocean)results in the failure of the annual cycle of TC genesis in the NIO.