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An experimental detrending approach to attributing change of pan evaporation in comparison with the traditional partial differential method
Wang, Tingting1,3; Sun, Fubao1,2,3,5; Xia, Jun4,5; Liu, Wenbin1; Sang, Yanfang1; Wang, Hong1
2018-09-01
Source PublicationJOURNAL OF HYDROLOGY
ISSN0022-1694
Volume564Pages:501-508
Corresponding AuthorSun, Fubao(Sunfb@igsnrr.ac.cn)
AbstractIn 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.
KeywordPan evaporation Attribution The experimental detrending (ED) approach The partial differential (PD) method
DOI10.1016/j.jhydrol.2018.07.021
WOS KeywordPOTENTIAL EVAPORATION ; UNITED-STATES ; TRENDS ; SENSITIVITY ; CHINA ; DROUGHT ; DEMAND ; REGION ; MODEL
Indexed BySCI
Language英语
Funding ProjectNational 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)
Funding OrganizationNational 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)
WOS Research AreaEngineering ; Geology ; Water Resources
WOS SubjectEngineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000445316200041
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52894
Collection中国科学院地理科学与资源研究所
Corresponding AuthorSun, Fubao
Affiliation1.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
Recommended Citation
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.
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