Contributions of shortwave radiation to the formation of temperature inversions in the Bay of Bengal and eastern equatorial Indian Ocean:A modeling approach

作     者：K M Azam Chowdhury Wensheng Jiang Changwei Bian Guimei Liu Md Kawser Ahmed Shaila Akhter K M Azam Chowdhury;Wensheng Jiang;Changwei Bian;Guimei Liu;Md Kawser Ahmed;Shaila Akhter

作者机构：College of Oceanic and Atmospheric SciencesOcean University of ChinaQingdao266100China Department of Oceanography&International Centre for Ocean Governance(ICOG)University of DhakaDhaka1000Bangladesh National Marine Environmental Forecasting CenterBeijing100081China Key Lab of Marine Environment and Ecology of Ministry of EducationOcean University of ChinaQingdao266100China Frontiers Science Center for Deep Ocean Multispheres and Earth System(FDOMES)Ocean University of ChinaQingdao266100China Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao266237China Bangladesh BetarMinistry of Information and BroadcastingGovernment of the People’s Republic of BangladeshDhaka1207Bangladesh 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2022年第41卷第9期

页      面：19-37页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

基　　金：The Marine Scholarship of China China Scholarship Council for International Doctoral Students under contract No.2017SOA016552 the National Natural Science Foundation of China under contract Nos U2106204 and 41676003 

主　　题：mixed layer cooling haline stratification temperature inversion ROMS model shortwave radiation Bay of Bengal eastern equatorial Indian Ocean 

摘      要：Variations in incoming shortwave radiation influence the net surface heat flux,contributing to the formation of a temperature *** effects of shortwave radiation on the temperature inversions in the Bay of Bengal and eastern equatorial Indian Ocean have never been ***,a high-resolution(horizontal resolution of 0.07°×0.07° with 50 vertical layers) Regional Ocean Modeling System(ROMS) model is utilized to quantify the contributions of shortwave radiation to the temperature inversions in the study *** of the mixed layer heat and salt budgets are performed,and different model simulations are *** model results suggest that a 30% change in shortwave radiation can change approximately 3% of the temperature inversion area in the Bay of *** shortwave radiation reduces the net surface heat flux and cools the mixed layer substantially;it also reduces the evaporation rate,causing less evaporative water vapor losses from the ocean than the typical situation,and ultimately enhances haline ***,the rudimentary outcome of this research is that a decrease in shortwave radiation produces more temperature inversion in the study region,which is primarily driven by the net surface cooling and supported by the intensive haline ***,low shortwave radiation eventually intensifies the temperature inversion layer by thickening the barrier *** study could be an important reference for predicting how the Indian Ocean climate will respond to future changes in shortwave radiation.