An experimental detrending approach to attributing change of pan evaporation in comparison with the traditional partial differential method

doi:10.1016/j.jhydrol.2018.07.021

	An experimental detrending approach to attributing change of pan evaporation in comparison with the traditional partial differential method
	Wang, Tingting 1,3; Sun, Fubao 1,2,3,5; Xia, Jun 4,5; Liu, Wenbin 1; Sang, Yanfang 1; Wang, Hong 1
刊名	JOURNAL OF HYDROLOGY
	2018-09-01
卷号	564 页码:501-508
关键词	Pan evaporation Attribution The experimental detrending (ED) approach The partial differential (PD) method
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2018.07.021
通讯作者	Sun, Fubao(Sunfb@igsnrr.ac.cn)
英文摘要	In predicting how droughts and hydrological cycles might change in a changing climate, change of pan evaporation (E-pan) is one crucial element to be understood. The derived partial differential (PD) form of the PenPan equation is a prevailing attribution approach worldwide. However, small biases exist and the application of PD method is limited within the derivation of partial differential form of the equation, which impede the attribution analysis in hydrology. Here we designed a series of numerical experiments by detrending each climatic variable, i.e., an experimental detrending (ED) approach, to attribute changes of E-pan over China. We compared the attribution results using these two methods and further analyzed the plausible advantages of ED approach. The comparison shows that both ED approach and PD method perform well in attributing changes of E-pan and to the input meteorological variables in China over 1960-2017. The first advantage of ED approach is that it can help make robust adjustment for the PD method in attribution analysis. Another advantage lies in its ability to attribute to the observed meteorological variables in China, when the PD method fails to quantify the contribution of relative humidity and air temperature in net radiation in E-pan attribution analysis. We highlight that the ED approach is recommended in attribution analysis for hydrologic research. Together with the adjusted PD method, both methods can assist a better understanding and prediction of water-energy cycles change in a changing climate.
资助项目	National Key Research and Development Program of China[2016YFC0401401] ; National Key Research and Development Program of China[2016YFA0602402] ; Key Programs of the Chinese Academy of Sciences[ZDRW-ZS-2017-3-1] ; CAS Pioneer Hundred Talents Program ; Open Research Fund of State Key Laboratory of Desert and Oasis Ecology in Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences (CAS)
WOS关键词	POTENTIAL EVAPORATION ; UNITED-STATES ; TRENDS ; SENSITIVITY ; CHINA ; DROUGHT ; DEMAND ; REGION ; MODEL
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000445316200041
资助机构	National Key Research and Development Program of China ; Key Programs of the Chinese Academy of Sciences ; CAS Pioneer Hundred Talents Program ; Open Research Fund of State Key Laboratory of Desert and Oasis Ecology in Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences (CAS)
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/52893]
专题	中国科学院地理科学与资源研究所
通讯作者	Sun, Fubao
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 2.Hexi Univ, Ecol Inst Qilian Mt, Zhangye City, Gansu, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 4.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Hubei, Peoples R China 5.Chinese Acad Sci, Ctr Water Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wang, Tingting,Sun, Fubao,Xia, Jun,et al. An experimental detrending approach to attributing change of pan evaporation in comparison with the traditional partial differential method[J]. JOURNAL OF HYDROLOGY,2018,564:501-508.
APA	Wang, Tingting,Sun, Fubao,Xia, Jun,Liu, Wenbin,Sang, Yanfang,&Wang, Hong.(2018).An experimental detrending approach to attributing change of pan evaporation in comparison with the traditional partial differential method.JOURNAL OF HYDROLOGY,564,501-508.
MLA	Wang, Tingting,et al."An experimental detrending approach to attributing change of pan evaporation in comparison with the traditional partial differential method".JOURNAL OF HYDROLOGY 564(2018):501-508.