Spatiotemporal Variation of Water Vapor Budget over the Tibetan Plateau and Its Regulation on Precipitation

作     者：王慧美 赵平 WANG Hui-mei;ZHAO Ping

作者机构：Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science and TechnologyNanjing 210044 China State Key Laboratory of Severe WeatherChinese Academy of Meteorological SciencesBeijing 100081 China Institute of Tibetan Plateau&Polar MeteorologyChinese Academy of Meteorological SciencesBeijing 100081 China 

出 版 物：《Journal of Tropical Meteorology》 (热带气象学报（英文版）)

年 卷 期：2022年第28卷第2期

页      面：194-206页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：Second Scientific Expedition on the Qinghai-Tibet Plateau(2019QZKK020803) Strategic Priority Research Program of Chinese Academy of Sciences Pan-Third Pole Environment Study for a Green Silk Road(XDA2010030807) 

主　　题：Tibetan Plateau water vapor budget transient water vapor transport stationary water vapor transport precipitation 

摘      要：The spatiotemporal variations of water vapor budget(Bt)and their relationships with local precipitation over the Tibetan Plateau(TP)are critical for understanding the characteristics of spatial distributions and evolutions of water resources over the *** on a boundary of the TP,this paper explored the spatiotemporal characteristics of Bt over the TP using the European Centre for Medium-Range Weather Forecasts interim(ERA-Interim)reanalysis *** the climatological mean,the TP is a water vapor sink throughout four seasons and the seasonal variation of Bt is closely associated with the water vapor budget at the southern boundary of the *** transient water vapor transport is quasimeridional in the mid-and high-latitude areas and plays a leading role in winter Bt but contributes little in other *** the interannual timescale,the variation of Bt is mainly determined by anomalous water vapor transports at the western and southern *** Bay of Bengal,the North Arabian Sea,and mid-latitude West Asia are the main sources of excessive water vapor for a wetter *** the southern and western boundaries,the transient water vapor budget regulates one-third to four-fifths of Bt ***,the variability of the TP Bt is closely associated with precipitation over the central-southern and southeastern parts of the TP in summer and winter,which is attributed to the combined effect of the stationary and transient water vapor *** the role of the transient water vapor transport,the linkage between the TP Bt and local precipitation is tighter.