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Estimation of actual evapotranspiration in the Nagqu river basin of the Tibetan Plateau
Zou, MJ (Zou, Mijun)1; Zhong, L (Zhong, Lei)1; Ma, YM (Ma, Yaoming)2; Hu, YY (Hu, Yuanyuan)1; Feng, L (Feng, Lu)3
Source PublicationTHEORETICAL AND APPLIED CLIMATOLOGY
2018-05-01
Volume132Issue:3-4Pages:1039-1047
DOI10.1007/s00704-017-2154-1
Abstract

As a critical component of the energy and water cycle, terrestrial actual evapotranspiration (ET) can be influenced by many factors. This study was mainly devoted to providing accurate and continuous estimations of actual ET for the Tibetan Plateau (TP) and analyzing the effects of its impact factors. In this study, summer observational data from the Coordinated Enhanced Observing Period (CEOP) Asia-Australia Monsoon Project (CAMP) on the Tibetan Plateau (CAMP/Tibet) for 2003 to 2004 was selected to determine actual ET and investigate its relationship with energy, hydrological, and dynamical parameters. Multiple-layer air temperature, relative humidity, net radiation flux, wind speed, precipitation, and soil moisture were used to estimate actual ET. The regression model simulation results were validated with independent data retrieved using the combinatory method. The results suggested that significant correlations exist between actual ET and hydro-meteorological parameters in the surface layer of the Nagqu river basin, among which the most important factors are energy-related elements (net radiation flux and air temperature). The results also suggested that how ET is eventually affected by precipitation and two-layer wind speed difference depends on whether their positive or negative feedback processes have a more important role. The multivariate linear regression method provided reliable estimations of actual ET; thus, 6-parameter simplified schemes and 14-parameter regular schemes were established.

Subject Area地理学
WOS IDWOS:000430539000028
Language英语
Indexed BySCIE
KeywordEnergy Budget Water-balance Surface Modis Algorithm Temperature Game/tibet Fluxes China
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
Cooperation Status国内
ISSN0177-798X
Department环境变化与地表过程重点实验室
PublisherSPRINGER WIEN
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8666
Collection图书馆
Corresponding AuthorZhong, L (Zhong, Lei)
Affiliation1.Univ Sci & Technol China, Sch Earth & Space Sci, Lab Atmospher Observat & Climate Environm Res, Hefei, Anhui, Peoples R China;
2.Chinese Acad Sci, Inst Tibetan Plateau Res, CAS Ctr Excellence Tibetan Plateau Earth Sci, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China;
3.CMA, ITMM, Guangzhou, Guangdong, Peoples R China.
Recommended Citation
GB/T 7714
Zou, MJ ,Zhong, L ,Ma, YM ,et al. Estimation of actual evapotranspiration in the Nagqu river basin of the Tibetan Plateau[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2018,132(3-4):1039-1047.
APA Zou, MJ ,Zhong, L ,Ma, YM ,Hu, YY ,&Feng, L .(2018).Estimation of actual evapotranspiration in the Nagqu river basin of the Tibetan Plateau.THEORETICAL AND APPLIED CLIMATOLOGY,132(3-4),1039-1047.
MLA Zou, MJ ,et al."Estimation of actual evapotranspiration in the Nagqu river basin of the Tibetan Plateau".THEORETICAL AND APPLIED CLIMATOLOGY 132.3-4(2018):1039-1047.
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