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The unignorable impacts of pan wall on pan evaporation dynamics
Wang, Kaiwen1,4; Liu, Xiaomang1; Liu, Changming1; Yang, Xiaohua2; Bai, Peng1; Li, Yuqi3; Pan, Zharong5
2019-08-15
Source PublicationAGRICULTURAL AND FOREST METEOROLOGY
ISSN0168-1923
Volume274Pages:42-50
Corresponding AuthorLiu, Xiaomang(liuxm@igsnrr.ac.cn)
AbstractOpen water evaporation (E-ow), such as evaporation of lake and reservoir, is typically estimated by observations of different pans. The observation networks of pan evaporation (E-pan) were established and maintained worldwide for a long history. All the pans in the world consist of water body and pan wall, which includes side wall, pan rim and (if any) pan bottom. Since the pan wall will affect E-pan by radiation absorption and heat conduction, once pan wall absorbs and conducts more heat for vaporizing than water body in a pan, observed E-pan dynamics will greatly deviate E-ow causing uncertainties and errors in estimating E-ow. Thus, this study calculated E-pan at 767 meteorological stations in China and quantified the contributions of water body and pan wall on E-pan trends. For China as a whole, E-pan decreased at -3.75 mm/a(2) and increased at 3.68 mm/a(2) during 1960-1993 and 1993-2016, respectively. 84% of E-pan trends were contributed by water body. For 767 stations, E-pan trends of 84 and 96 stations were dominated by pan wall during 1960-1993 and 1993-2016, respectively. Since pan wall contributed more than half of E-pan trends for (similar to)23% of the stations in China, the impacts of pan wall on E-pan dynamics cannot be ignored.
KeywordPan evaporation dynamics Pan wall Radiation absorption and heat conduction
DOI10.1016/j.agrformet.2019.04.016
WOS KeywordTRENDS ; CHINA ; SENSITIVITY ; DEMAND ; MODEL
Indexed BySCI
Language英语
Funding ProjectNational key R&D Program of China[2018YFA0605404] ; National key R&D Program of China[2017YFC0506603] ; National Natural Science Foundation of China[41330529] ; National Natural Science Foundation of China[51679007]
Funding OrganizationNational key R&D Program of China ; National Natural Science Foundation of China
WOS Research AreaAgriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS SubjectAgronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS IDWOS:000471356600005
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/58893
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiu, Xiaomang
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China
2.Beijing Normal Univ, State Key Lab Water Environm Simulat, Sch Environm, Beijing, Peoples R China
3.Univ Washington, Dept Urban Design & Planning, Seattle, WA 98195 USA
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Minist Water Resources, Gen Inst Water Resources & Hydropower Planning &, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Wang, Kaiwen,Liu, Xiaomang,Liu, Changming,et al. The unignorable impacts of pan wall on pan evaporation dynamics[J]. AGRICULTURAL AND FOREST METEOROLOGY,2019,274:42-50.
APA Wang, Kaiwen.,Liu, Xiaomang.,Liu, Changming.,Yang, Xiaohua.,Bai, Peng.,...&Pan, Zharong.(2019).The unignorable impacts of pan wall on pan evaporation dynamics.AGRICULTURAL AND FOREST METEOROLOGY,274,42-50.
MLA Wang, Kaiwen,et al."The unignorable impacts of pan wall on pan evaporation dynamics".AGRICULTURAL AND FOREST METEOROLOGY 274(2019):42-50.
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