南京信息工程大学学报2020，Vol.12Issue(4)：460-471,12.DOI:10.13878/j.cnki.jnuist.2020.04.007
孟加拉湾春季小型暖池对热带气旋的影响研究
Effect of spring mini-warm pool on the tropical cyclones in the Bay of Bengal:case studies
摘要
Abstract
Two tropical cyclones ( TCs ) during spring 2017 have been selected as case studies to examine the effect of spring mini-warm pool ( MWP ) on TCs in the Bay of Bengal ( BoB ) . The TC Maarutha existed over the BoB from 14th to 17th April of 2017,while TC Mora existed from 27th to 30th May of 2017.Existing datasets have been utilized to analyze major factors which influence TC activity in the region. It is identified that the TC-induced sea surface temperature ( SST) cooling is evident during spring,but SST is relatively high just before the landfall of the TC Mora in the BoB.This observed warmer conditions are primarily due to the existence of spring MWP in the BoB. When the spring MWP is stronger ( SST> 31 ℃) ,TC Mora induced mixing does not have any major influence on removing of the TC energy.In addition,the study reveals that the spring MWP suppresses the TC-induced negative effect by deepening the mixed-layer,decreasing cyclone heat potential and latent heat flux during spring in the BoB.关键词
热带气旋/春季小型暖池/海表温度/孟加拉湾Key words
tropical cyclones/spring mini-warm pool/sea surface temperature/the Bay of Bengal分类
海洋科学引用本文复制引用
Gayan Pathirana,Kanchana Priyadarshani,王东晓,陈更新,Tilak Priyadarshana..孟加拉湾春季小型暖池对热带气旋的影响研究[J].南京信息工程大学学报,2020,12(4):460-471,12.基金项目
第二次青藏高原综合科学考察研究项目子专题(2019QZKK010201) （2019QZKK010201）
中国科学院中国-斯里兰卡联合科教中心建设项目 （）
