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Spatio-temporal dynamics of evapotranspiration on the Tibetan Plateau from 2000 to 2010
Song, Lulu1,2; Zhuang, Qianlai2; Yin, Yunhe3; Zhu, Xudong4; Wu, Shaohong3
2017
Source PublicationENVIRONMENTAL RESEARCH LETTERS
ISSN1748-9326
Volume12Issue:1Pages:13
Corresponding AuthorWu, Shaohong(wush@igsnrr.ac.cn)
AbstractEvapotranspiration (ET) is a key process of the climate system because it links water, energy and carbon cycles. In this study we modified a Penman-Monteith based algorithm to estimate ET on the Tibetan Plateau at a 1-km spatial resolution for the period 2000-2010 using meteorological and satellite remote sensing data. The results showed that the average annual ET on the Tibetan Plateau was 350.3mm year(-1) and decreased from the southeast toward the northwest. The highest ET value was found in open water bodies (680.9mm year(-1)) and the lowest ET value was found in open shrubland (254.0mm year(-1)). Overall, the inter-annual ET decreased from 2000 to 2010 and there was significant negative ET trend over 42% of the region, primarily in the northwest of the Tibetan Plateau. Relative humidity was the dominant factor in controlling long-term variations of ET in the arid northwest plateau. But under moist conditions, leaf area index or temperature drove ET. In addition, P-ET on the Tibetan Plateau significantly increased and about 37% of the region showed strong positive P-ET trend primarily in the central of the Tibetan Plateau. The positive P-ET trend in four seasons suggested that the Tibetan Plateau might have become wetter during the past decade.
Keywordevapotranspiration penman-Monteith net precipitation tibetan plateau
DOI10.1088/1748-9326/aa527d
WOS KeywordENERGY BUDGET ; HEAT-FLUX ; TERRESTRIAL ECOSYSTEMS ; GEOGRAPHICAL REGIONS ; CLIMATE-CHANGE ; NET-RADIATION ; MODIS ; WATER ; ALGORITHM ; CHINA
Indexed BySCI
Language英语
Funding ProjectNASA Land Use and Land Cover Change program[NASA-NNX09AI26G] ; Department of Energy[DE-FG02-08ER64599] ; National Science Foundation[NSF-1028291] ; National Science Foundation[NSF-0919331] ; NSF Division of Information & Intelligent Systems[IIS-1028291] ; National Natural Science Foundation of China[41530749] ; National Natural Science Foundation of China[41571043]
Funding OrganizationNASA Land Use and Land Cover Change program ; Department of Energy ; National Science Foundation ; NSF Division of Information & Intelligent Systems ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000410387700003
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/61778
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWu, Shaohong
Affiliation1.Chinese Acad Sci, Inst Urban Environm, Xiamen 361021, Fujian, Peoples R China
2.Purdue Univ, Dept Earth Atmospher & Planetary Sci, Dept Agron, W Lafayette, IN 47907 USA
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
4.Xiamen Univ, Key Lab Coastal & Wetland Ecosyst, Minist Educ, Xiamen 361102, Fujian, Peoples R China
Recommended Citation
GB/T 7714
Song, Lulu,Zhuang, Qianlai,Yin, Yunhe,et al. Spatio-temporal dynamics of evapotranspiration on the Tibetan Plateau from 2000 to 2010[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(1):13.
APA Song, Lulu,Zhuang, Qianlai,Yin, Yunhe,Zhu, Xudong,&Wu, Shaohong.(2017).Spatio-temporal dynamics of evapotranspiration on the Tibetan Plateau from 2000 to 2010.ENVIRONMENTAL RESEARCH LETTERS,12(1),13.
MLA Song, Lulu,et al."Spatio-temporal dynamics of evapotranspiration on the Tibetan Plateau from 2000 to 2010".ENVIRONMENTAL RESEARCH LETTERS 12.1(2017):13.
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