Intercomparison of Model-Estimated Potential Evapotranspiration on the Tibetan Plateau during 1981-2010

doi:10.1175/EI-D-16-0020.1

	Intercomparison of Model-Estimated Potential Evapotranspiration on the Tibetan Plateau during 1981-2010
	Song, Lulu 1; Zhuang, Qianlai 2; Yin, Yunhe 3; Wu, Shaohong 3; Zhu, Xudong 4,5,6
刊名	EARTH INTERACTIONS
	2017-12-01
卷号	21 页码:22
关键词	Climate change Evapotranspiration Model comparison
ISSN号	1087-3562
DOI	10.1175/EI-D-16-0020.1
通讯作者	Zhu, Xudong(xdzhu@xmu.edu.cn)
英文摘要	Potential evapotranspiration (PET), the maximum evapotranspiration rate under unlimited water supply, reflects the capacity for transpiration flow and plant primary production. Numerous models have been developed to quantify PET, but there are still large uncertainties in PET estimations. In this study, the authors conducted spatially explicit estimations of daily PET from 1981 to 2010 for eight different land-cover types on the Tibetan Plateau by applying three types of PET models including a combination model (Penman-Monteith), a radiation-based model (Priestley-Taylor), and a temperature-based model (Thornthwaite). This study found that the PET estimated by Thornthwaite model (PETT) was lower than those estimated by Priestley-Taylor (PETPT) and Penman-Monteith models (PETPM). Penman-Monteith model gave the highest estimates of PET on annual and daily scales. The mean annual PET for the whole plateau estimated by these three models varied from 675.1 to 700.5 mm yr(-1), and daily PET varied from 1.33 to 1.92 mm day(-1). The spatial pattern of PETT did not agree with the PETPT and PETPM, while the latter two agreed well with each other. Because of different model structures and dominant meteorological drivers, the interannual variability of PET varied significantly among the models. PETPT and PETPM showed a transition around 1993 since the dominant meteorological drivers were different before and after 1993. These disagreements among different models suggested that PET models with different algorithms should be used with caution. This study provided a validation to assist those undertaking PET estimations on the Tibetan Plateau.
资助项目	Natural Science Foundation of Fujian Province, China[2017J01069] ; National Natural Science Foundation of China[31600368] ; Fundamental Research Funds for the Central Universities of China[20720160109] ; National Key Research and Development Program of China[2017YFC0506100] ; NASA Land-Cover and Land-Use Change Program[NASA-NNX09AI26G] ; NSF Division of Information and Intelligent Systems[NSF-1028291]
WOS关键词	PENMAN-MONTEITH ; EVAPORATION ; TRENDS ; CHINA ; PARAMETERS
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000417677400001
资助机构	Natural Science Foundation of Fujian Province, China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; National Key Research and Development Program of China ; NASA Land-Cover and Land-Use Change Program ; NSF Division of Information and Intelligent Systems
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/56800]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhu, Xudong
作者单位	1.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen, Fujian, Peoples R China 2.Purdue Univ, Dept Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China 4.Xiamen Univ, Minist Educ, Key Lab Coastal & Wetland Ecosyst, Xiamen, Fujian, Peoples R China 5.Xiamen Univ, Coll Environm & Ecol, Xiamen, Fujian, Peoples R China 6.Xiamen Univ, Coastal & Ocean Management Inst, Xiamen, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Song, Lulu,Zhuang, Qianlai,Yin, Yunhe,et al. Intercomparison of Model-Estimated Potential Evapotranspiration on the Tibetan Plateau during 1981-2010[J]. EARTH INTERACTIONS,2017,21:22.
APA	Song, Lulu,Zhuang, Qianlai,Yin, Yunhe,Wu, Shaohong,&Zhu, Xudong.(2017).Intercomparison of Model-Estimated Potential Evapotranspiration on the Tibetan Plateau during 1981-2010.EARTH INTERACTIONS,21,22.
MLA	Song, Lulu,et al."Intercomparison of Model-Estimated Potential Evapotranspiration on the Tibetan Plateau during 1981-2010".EARTH INTERACTIONS 21(2017):22.