Contributions of moisture sources to precipitation in the major drainage basins in the Tibetan Plateau

被引:0
作者
Ying Li
Fengge Su
Qiuhong Tang
Hongkai Gao
Denghua Yan
Hui Peng
Shangbin Xiao
机构
[1] Engineering Research Center of Eco-environment in Three Gorges Reservoir Region,College of Hydraulic and Environmental Engineering
[2] China Three Gorges University,State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research
[3] Chinese Academy of Sciences (CAS),Key Laboratory of Water Cycle and Related Land Surface Process, Institute of Geographic Sciences and Natural Resources Research
[4] University of Chinese Academy of Sciences,Key Laboratory of Geographic Information Science (Ministry of Education of China)
[5] CAS Center for Excellence in Tibetan Plateau Earth Sciences,State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, Water Resources Department
[6] Chinese Academy of Sciences,undefined
[7] East China Normal University,undefined
[8] China Institute of Water Resources and Hydropower Research,undefined
来源
Science China Earth Sciences | 2022年 / 65卷
关键词
Tibetan Plateau; Precipitation; Moisture sources; Westerlies; Indian summer monsoon; Local recycling;
D O I
暂无
中图分类号
学科分类号
摘要
Tracking and quantifying the moisture sources of precipitation in different drainage basins in the Tibetan Plateau (TP) help to reveal basin-scale hydrological cycle characteristics under the interactions between the westerlies and Indian summer monsoon (ISM) systems and to improve our understanding on the mechanisms of water resource changes in the ‘Asian Water Tower’ under climate changes. Based on a Eulerian moisture tracking model (WAM-2) and three atmospheric reanalysis products (ERA-I, MERRA-2, and JRA-55), the contributions of moisture sources to the precipitation in six major sub-basins in the TP were tracked during an approximately 35-year period (1979/1980–2015). The results showed that in the upper Indus (UI), upper Tarim River (UT), and Qaidam Basin (QB), the moisture sources mainly extended westward along the mid-latitude westerlies to the western part of the Eurasian continent. In contrast, in the Yarlung Zangbo River Basin (YB), inner TP (ITP), and the source area of three eastern rivers (TER, including the Nujiang River, Lancang River, and Yangtze River), the moisture sources extended both westward and southward, but mainly southward along the ISM. In winter and spring, all of the sub-basins were dominated by western moisture sources. In summer, the western sources migrated northward with the zonal movement of the westerlies, and simultaneously the southern sources of the YB, ITP, and TER expanded largely toward the Indian Ocean along the ISM. In autumn, the moisture sources of the UI, UT, and QB shrank to the western sources, and the moisture sources of the YB, ITP, and TER shrank to the central-southern TP and the Indian subcontinent. By quantifying the moisture contributions from multiple sources, we found that the terrestrial moisture dominated in all of the sub-basins, particularly in the UT and QB (62–73%). The oceanic contributions were relatively high in the UI (38–42%) and YB (38–41%). In winter, evaporation from the large western water bodies (such as the Mediterranean, Red Sea, and Persian Gulf) was significantly higher than that from the continental areas. This contributed to the peak (valley) values of the oceanic (terrestrial) moisture contributions to all of the sub-basins. In summer, the terrestrial moisture contributions to the UI, UT, and QB reached their annual maximum, but the abundant oceanic moisture transported by the ISM restrained the appearance of land source contribution peaks in the YB, ITP, and TER, resulting in almost equal moisture contributions in the YB from the ocean and land.
引用
收藏
页码:1088 / 1103
页数:15
相关论文
共 638 条
[1]  
An W(2017)Enhanced recent local moisture recycling on the northwestern Tibetan Plateau deduced from ice core deuterium excess records J Geophys Res-Atmos 122 12,541-12,556
[2]  
Hou S(2003)AIRS/AMSU/HSB on the Aqua mission: Design, science objectives, data products, and processing systems IEEE Trans Geosci Remote Sens 41 253-264
[3]  
Zhang Q(2013)Evaluation of NCEP-CFSR, NCEP-NCAR, ERA-Interim, and ERA-40 reanalysis datasets against independent sounding observations over the Tibetan Plateau J Clim 26 206-214
[4]  
Zhang W(2012)Stable isotopes of modern water across the Himalaya and eastern Tibetan Plateau: Implications for estimates of paleoelevation and paleoclimate J Geophys Res 117 D02110-1196
[5]  
Wu S(2017)Atmospheric water balance and variability in the MERRA-2 reanalysis J Clim 30 1177-1089
[6]  
Xu H(1993)Estimation of continental precipitation recycling J Clim 6 1077-1352
[7]  
Pang H(2016)Atmospheric controls on seasonal and interannual variations in the precipitation isotope in the East Asian monsoon region J Clim 29 1339-435
[8]  
Wang Y(2012)On the origin and destination of atmospheric moisture and air mass over the Tibetan Plateau Theor Appl Climatol 110 423-6907
[9]  
Liu Y(2019)Identifying and contrasting the sources of the water vapor reaching the subregions of the Tibetan Plateau during the wet season Clim Dyn 53 6891-68
[10]  
Aumann H H(2014)Characteristics and changes of streamflow on the Tibetan Plateau: A review J Hydrol-Regional Studies 2 49-124