Precipitation recycling ratio and water vapor sources on the Tibetan Plateau  

作　　者：Kun YANG Qiuhong TANG Hui LU 

机构地区：[1]Department of Earth System Science,Ministry of Education Key Laboratory for Earth System Modeling,Institute for Global Change Studies,Tsinghua University,Beijing 100084,China [2]National Tibetan Plateau Data Center,State Key Laboratory of Tibetan Plateau Earth System and Resource Environment,Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100101,China [3]Key Laboratory of Water Cycle and Related Land Surface Processes,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China

出　　处：《Science China Earth Sciences》2022年第3期584-588,共5页中国科学（地球科学英文版）

基　　金：supported by the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDA2006010201);the Second Tibetan Plateau Scientific Expedition and Research Program(Grant No.2019QZKK0206)。

摘　　要：Precipitation recycling ratio(i.e.,evaporation-precipitation feedback strength)and water vapor sources are two key aspects of regional water cycle,and their quantification is essential for understanding water cycle processes and their changes.The results of existing studies on the precipitation recycling ratio and water vapor sources for the Tibetan Plateau were highly controversial.This article clarifies different frameworks for understanding the water cycle.It points out that(1)the ratio of evaporation to precipitation depends mainly on climate regimes,while the precipitation recycling ratio is closely related to both the climate regimes and the scale of the region of interest,and(2)the water vapor sources depend on the traced period(precipitating or non-precipitating period)and the degree of tracing.Within the same theoretical framework,there is no fundamental conflict among the results of different studies on the water cycle in the Tibetan Plateau.

关 键 词：Regional water vapor balance Precipitation recycle Water vapor tracing Precipitating period 

分 类 号：P426[天文地球—大气科学及气象学]