文献类型：期刊文献

英文题名：Impact of warm mesoscale eddy on tropical cyclone intensity

作者：Sun, Jia[1,2];Wang, Guihua[3];Xiong, Xuejun[1,2];Hui, Zhenli[1,2];Hu, Xiaomin[1,2];Ling, Zheng[4];Yu, Long[1,2];Yang, Guangbing[1,2];Guo, Yanliang[1,2];Ju, Xia[1,2];Chen, Liang[1,2,5]

机构：[1]Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China;[2]Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Reg Oceanog & Numer Modeling, Qingdao 266237, Peoples R China;[3]Fudan Univ, Inst Atmospher Sci, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China;[4]Guangdong Ocean Univ, Guangdong Key Lab Coastal Ocean Variabil & Disast, Zhanjiang 524088, Peoples R China;[5]Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Peoples R China

年份：2020

卷号：39

期号：8

起止页码：1

外文期刊名：ACTA OCEANOLOGICA SINICA

收录：SCI-EXPANDED(收录号：WOS:000563752300001)、、Scopus(收录号：2-s2.0-85089937248)、WOS

语种：英文

外文关键词：tropical cyclone intensity; warm ocean mesoscale eddy; upper ocean; spatial-temporal pattern

外文摘要：The spatial-temporal patterns of tropical cyclone (TC) intensity changes caused by the warm ocean mesoscale eddy (WOME) distribution are evaluated using two sets of idealized numerical experiments. The results show that the TC was intensified and weakened when a WOME was close to and far away from the TC center, respectively. The area where the WOME enhanced (weakened) TC intensity is called the inner (outer) area in this study. Amplitudes of the enhancement and weakening caused by the WOME in the inner and outer area decreased and increased over time, while the ranges of the inner and outer area diminished and expanded, respectively. The WOME in the inner area strengthened the secondary circulation of the TC, increased heat fluxes, strengthened the symmetry, and weakened the outer spiral rainband, which enhanced TC intensity. The effect was opposite if the WOME was in the outer area, and it weakened the TC intensity. The idealized simulation employed a stationary TC, and thus the results may only be applied to TCs with slow propagation. These findings can improve our understanding of the interactions between TC and the WOME and are helpful for improving TC intensity forecasting by considering the effect of the WOME in the outer areas.