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Spatiotemporal variations of actual evapotranspiration over the Lake Selin Co and surrounding small lakes (Tibetan Plateau) during 2003-2012
Zhou, J (Zhou, Jing)1; Wang, L (Wang, Lei)1,2; Zhang, YS (Zhang, YinSheng)1,2; Guo, YH (Guo, YanHong)1; He, D (He, Dan)3; Zhou, J
Source PublicationSCIENCE CHINA-EARTH SCIENCES
2016
Volume59Issue:12Pages:2441-2453
DOI10.1007/s11430-016-0023-6
AbstractActual evapotranspiration (ET (a) ) over the Tibetan Plateau (TP) is an important component of the water cycle, and greatly influences the water budgets of the TP lake basins. Quantitative estimation of ET (a) within lake basins is fundamental to physically understanding ET (a) changes, and thus will improve the understanding of the hydrological processes and energy balance throughout the lake basins. In this study, the spatiotemporal dynamic changes of ET (a) within the Lake Selin Co (the TP's largest lake) and its surrounding small lakes and land area during 2003-2012 are examined at the basin scale. This was carried out using the well-established Water and Energy Budget-based Distributed Hydrological Model (WEB-DHM) for the land area, the Penman method for the water area when unfrozen, and a simple sublimation estimation approach for the water area when frozen. The relationships between ET (a) changes and controlling factors are also discussed. Results indicate that the simulated land ET (a) from the WEB-DHM reasonably agrees with the estimated ET (a) values from the nonlinear complementary relationship model using appropriately calibrated parameter values at a point scale. Land ET (a) displayed a non-significant increase of 7.03 mm year(-1), and largely depends on precipitation. For the water area, the combined effects of reduced wind speed and net radiation offset the effect of rising temperature and vapor pressure deficit, and contributed to a non-significant decrease in evaporation of 4.17 mm year(-1). Sensitivity analysis shows that vapor pressure deficit and wind speed are the most sensitive variables to the changes of evaporation from the water area.
Subject Area自然地理学
WOS IDWOS:000390019500013
Language英语
Indexed BySCI
KeywordSurface Parameterization Sib2 Recent Climate Changes Pan Evaporation Nam Co Hydrological Model Atmospheric Gcms River-basin Water China Level
Cooperation Status国内
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7486
Collection图书馆
Corresponding AuthorZhou, J
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Beijing Union Univ, Coll Arts & Sci, Beijing 100191, Peoples R China
Recommended Citation
GB/T 7714
Zhou, J ,Wang, L ,Zhang, YS ,et al. Spatiotemporal variations of actual evapotranspiration over the Lake Selin Co and surrounding small lakes (Tibetan Plateau) during 2003-2012[J]. SCIENCE CHINA-EARTH SCIENCES,2016,59(12):2441-2453.
APA Zhou, J ,Wang, L ,Zhang, YS ,Guo, YH ,He, D ,&Zhou, J.(2016).Spatiotemporal variations of actual evapotranspiration over the Lake Selin Co and surrounding small lakes (Tibetan Plateau) during 2003-2012.SCIENCE CHINA-EARTH SCIENCES,59(12),2441-2453.
MLA Zhou, J ,et al."Spatiotemporal variations of actual evapotranspiration over the Lake Selin Co and surrounding small lakes (Tibetan Plateau) during 2003-2012".SCIENCE CHINA-EARTH SCIENCES 59.12(2016):2441-2453.
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