气候变化领域集成服务门户(CCPortal): Investigating water budget dynamics in 18 river basins across the Tibetan Plateau through multiple datasets

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DOI	10.5194/hess-22-351-2018
	Investigating water budget dynamics in 18 river basins across the Tibetan Plateau through multiple datasets
	Liu W.; Sun F.; Li Y.; Zhang G.; Sang Y.-F.; Ho Lim W.; Liu J.; Wang H.; Bai P.
发表日期	2018
ISSN	1027-5606
起始页码	351
结束页码	371
卷号	22 期号:1
英文摘要	The dynamics of basin-scale water budgets over the Tibetan Plateau (TP) are not well understood nowadays due to the lack of in situ hydro-climatic observations. In this study, we investigate the seasonal cycles and trends of water budget components (e.g. precipitation P, evapotranspiration ET and runoff Q) in 18 TP river basins during the period 1982-2011 through the use of multi-source datasets (e.g. in situ observations, satellite retrievals, reanalysis outputs and land surface model simulations). A water balance-based two-step procedure, which considers the changes in basin-scale water storage on the annual scale, is also adopted to calculate actual ET. The results indicated that precipitation (mainly snowfall from mid-autumn to next spring), which are mainly concentrated during June-October (varied among different monsoons-impacted basins), was the major contributor to the runoff in TP basins. The P, ET and Q were found to marginally increase in most TP basins during the past 30 years except for the upper Yellow River basin and some sub-basins of Yalong River, which were mainly affected by the weakening east Asian monsoon. Moreover, the aridity index (PET/P) and runoff coefficient (Q/P) decreased slightly in most basins, which were in agreement with the warming and moistening climate in the Tibetan Plateau. The results obtained demonstrated the usefulness of integrating multi-source datasets to hydrological applications in the data-sparse regions. More generally, such an approach might offer helpful insights into understanding the water and energy budgets and sustainability of water resource management practices of data-sparse regions in a changing environment. © Author(s) 2018.
语种	英语
scopus关键词	Atmospheric thermodynamics; Budget control; Digital storage; Information management; Rivers; Runoff; Sustainable development; Water management; Water supply; Watersheds; Changing environment; In-situ observations; Land surface modeling; Runoff coefficients; Satellite retrieval; Upper yellow rivers; Water budget components; Waterresource management; Water resources; aridity; data set; evapotranspiration; in situ measurement; precipitation (climatology); river basin; runoff; water budget; water storage; China; Qinghai-Xizang Plateau; Yalong Basin; Yellow River Basin
来源期刊	Hydrology and Earth System Sciences
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160149
作者单位	Liu, W., 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; Sun, F., 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, Ecology Institute of Qilian Mountain, Hexi University, Zhangye, 734000, China, College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China, Center for Water Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; Li, Y., College of Hydrometeorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Zhang, G., Key Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China, CAS Center for Excellent in Tibetan Plateau Earth Sciences, Be...
推荐引用方式 GB/T 7714	Liu W.,Sun F.,Li Y.,et al. Investigating water budget dynamics in 18 river basins across the Tibetan Plateau through multiple datasets[J]. 中国科学院青藏高原研究所,2018,22(1).
APA	Liu W..,Sun F..,Li Y..,Zhang G..,Sang Y.-F..,...&Bai P..(2018).Investigating water budget dynamics in 18 river basins across the Tibetan Plateau through multiple datasets.Hydrology and Earth System Sciences,22(1).
MLA	Liu W.,et al."Investigating water budget dynamics in 18 river basins across the Tibetan Plateau through multiple datasets".Hydrology and Earth System Sciences 22.1(2018).