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DOI	10.1016/j.jhydrol.2013.04.005
	Evaluation of evapotranspiration estimates for two river basins on the Tibetan Plateau by a water balance method
	Xue, Bao-Lin; Wang, Lei; Li, Xiuping; Yang, Kun; Chen, Deliang; Sun, Litao
通讯作者	Wang, L (通讯作者)
发表日期	2013
ISSN	0022-1694
EISSN	1879-2707
起始页码	290
结束页码	297
卷号	492
英文摘要	Evapotranspiration (E) at regional or basin scale is difficult to estimate. This study estimates E with a water balance method for the upper Yellow River and Yangtze River basins on the Tibetan Plateau, where in situ data accessibility is especially insufficient. Results indicate that annual terrestrial water storage change in the two basins is negligible, and basin-scale E can be reliably estimated by the difference between precipitation and runoff. Thus, four E products from Zhang-(Zhang_E), MODIS (MODIS_E), Japanese 25-year reanalysis product (JRA_E), and the newly published Global Land Data Assimilation System with Noah Land Surface Model-2 (GLDAS_E)-are evaluated against E estimated by the water balance method. GLDAS_E and Zhang_E had the best performance for the upper Yellow River basin and Yangtze River basin, respectively, with relatively small underestimation. Further analysis showed that the underestimation of GLDAS_E was mainly caused by its negative bias for precipitation, whereas the overestimation of JRA_E was due to overestimation of downward shortwave radiation. MODIS_E greatly overestimated E in both basins, which was also caused by high downward shortwave radiation flux inputs from the Global Modeling and Assimilation Office. Thus, more accurate forcing data for these products should be a future focus, since they can improve E estimates, at least for the Tibetan Plateau. (C) 2013 Elsevier B.V. All rights reserved.
关键词	REGIONAL EVAPOTRANSPIRATION CLIMATE-CHANGE FOREST GRACE FORCINGS RUNOFF MODEL MODIS
英文关键词	Evapotranspiration; Water balance method; Global evapotranspiration product; Tibetan Plateau
语种	英语
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000321023900026
来源期刊	JOURNAL OF HYDROLOGY
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/258175
推荐引用方式 GB/T 7714	Xue, Bao-Lin,Wang, Lei,Li, Xiuping,et al. Evaluation of evapotranspiration estimates for two river basins on the Tibetan Plateau by a water balance method[J]. 中国科学院青藏高原研究所,2013,492.
APA	Xue, Bao-Lin,Wang, Lei,Li, Xiuping,Yang, Kun,Chen, Deliang,&Sun, Litao.(2013).Evaluation of evapotranspiration estimates for two river basins on the Tibetan Plateau by a water balance method.JOURNAL OF HYDROLOGY,492.
MLA	Xue, Bao-Lin,et al."Evaluation of evapotranspiration estimates for two river basins on the Tibetan Plateau by a water balance method".JOURNAL OF HYDROLOGY 492(2013).