Estimation of mean water vapour residence time during tropical cyclones using a Lagrangian approach

作     者：Albenis Perez-Alarcon Patricia Coll-Hidalgo Jose C.Fernandez-Alvarez Raquel Nieto Luis Gimeno 

作者机构：Centro de Investigaci
on MarinaUniversidade de VigoEnvironmental Physics Laboratory(EPhysLab)OurenseSpain Departamento de MeteorologíaInstituto Superior de Tecnologías y Ciencias AplicadasUniversidad de La HabanaLa HabanaCuba Departamento de MeteorologíaEmpresa Cubana de Navegacion AereaLa HabanaCuba 

出 版 物：《Tropical Cyclone Research and Review》 (热带气旋研究与评论（英文版）)

年 卷 期：2022年第11卷第2期

页      面：76-87页

学科分类：07[理学] 0707[理学-海洋科学] 

基　　金：support from the UVigo PhD grants support from the Xunta de Galicia(Galician Regional Government)under grant No.ED481A2020/193 

主　　题：Tropical cyclones Water vapour residence time Lagrangian approach Tropical cyclones precipitation 

摘      要：Tropical cyclone(TC)-related rainfall mostly depends on the atmospheric moisture uptake from local and remote *** this study,the mean water vapour residence time(MWVRT)was computed for precipitation related to TCs in each basin and on a global scale by applying a Lagrangian moisture source diagnostic *** to our results,the highest MWVRT was found for the TCs over the South Indian Ocean and South Pacific Ocean basins(~3.08 days),followed by the Western North Pacific Ocean,Central and East North Pacific Ocean,North Indian Ocean,and North Atlantic Ocean basins(which exhibited values of 2.98,2.94,2.85,and 2.72 days,respectively).We also found a statistically significant(p0.05)decrease in MWVRT,at a rate of~2.4 h/decade in the North Indian Ocean and~1.0 h/decade in the remaining *** average,the MWVRT decreased during the 24 h before TCs made landfall,and the atmospheric parcels precipitated faster after evaporation when TCs moved over land than over the *** research should focus on the relationship between global warming and MWVRT of atmospheric parcels that precipitate over TC positions.