文献类型：期刊文献

英文题名：Influence of oceanic mesoscale eddy on the atmospheric boundary layer based on an idealized model

作者：Ji, Jinlin[1,2];Dong, Changming[1,2];Liu, Xiaohui[3];Liu, Tongya[3];Yu, Yang[4];Sian, Kenny T. C. Lim Kam[5];Bethel, Brandon J.[1];Zhao, Hui[6]

机构：[1]Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Peoples R China;[2]Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China;[3]MNR, Inst Oceanog 1, Hangzhou 310012, Peoples R China;[4]CMA, Fujian Meteorol Ctr, Fuzhou 350011, Peoples R China;[5]Wuxi Univ, Sch Atmospher Sci & Remote Sensing, Wuxi 214105, Peoples R China;[6]Guangdong Ocean Univ, Fac Chem & Environm Sci, Zhanjiang 524088, Peoples R China

年份：2022

卷号：202

外文期刊名：DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY

收录：SCI-EXPANDED(收录号：WOS:000840332800004)、、EI(收录号：20222812347176)、Scopus(收录号：2-s2.0-85133677018)、WOS

基金：This research was funded by the National Key Research and Devel- opment Program of China (2017YFA0604100) , the Startup Foundation for Introducing Talent of Nanjing University of Information Science & Technology (2021r068) , the National Natural Science Foundation of China (42192562,42076162) and the Natural Science Foundation of Guangdong Province of China (2020A1515010496) .

语种：英文

外文关键词：Idealized oceanic eddy; Air-sea interaction; Turbulent kinetic energy budget

外文摘要：Often, numerical models rely on parameterization schemes to represent currently unresolved or insufficiently understood phenomena.The influence of ocean mesoscale eddies on the overlying atmosphere is such a phenomenon. Using the Weather Research and Forecasting (WRF) model, the Regional Ocean Modeling System (ROMS) and the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modelling system, this study investigates the influence of idealized oceanic mesoscale eddies on the atmospheric boundary layer (ABL). The idealized model is horizontally homogeneous and set on an f-plane at 35???N. The cyclonic (anticyclonic) eddy causes sea level pressure (SLP) to increase (decrease) and reduces (increases) latent and sensible heat fluxes, surface winds, marine ABL, and atmospheric precipitable water in the coupled and uncoupled cases. Moreover, a momentum budget analysis of the model output shows that the pressure gradient term is the primary contributor to atmospheric momentum balance. Additionally, it should be noted that the SLP adjustment mechanism is important when advection is weak. Comparing the uncoupled and coupled WRF cases, the eddy???s effect on atmospheric parameters is more intense in the uncoupled than in the coupled case, which can increase precipitation by 50% and wind speed and heat flux by 20???30%. These results may be potentially important for future parameterizations of mesoscale air-sea interaction processes in numerical model development.