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Spatial Patterns and Influence Factors of Conversion Coefficients between Two Typical Pan Evaporimeters in China
Li, Yanzhong1,2; Liu, Changming1; Liang, Kang1
2016-10-01
Source PublicationWATER
ISSN2073-4441
Volume8Issue:10Pages:15
Corresponding AuthorLiang, Kang(liangk@igsnrr.ac.cn)
AbstractPan measurement is a reliable and efficient method for indicating the evaporative demand of the atmosphere. There are several types of pan evaporimeters worldwide, and the estimation of the conversion coefficients (K-p) between them is necessary in hydrologic research. In China, E601B pans were installed at all meteorological stations beginning in 1998. They replaced the 20 cm pans (phi 20). To fully use the records from the two pans and obtain long-term pan evaporation, the spatial patterns of K-p between phi 20 and E601B and the factors that influence K-p are investigated based on records from 573 national meteorological stations from 1998 to 2001. In this study, The results show that higher K-p values are found in southwestern regions and lower values are found in northeastern regions during the warm seasons (from May to September), while K-p values are lower during warm seasons than during cold seasons (from October to April the following year). In addition, net radiation was found to be the dominant climate factor that affects variations in K-p, followed by relative humidity and the vapor pressure deficit. This study can improve the benefit of not only the selection of appropriate evaporimeters by meteorological departments, but also of the study of temporal variability and trends in the evaporative demand.
Keywordconversion coefficients pan evaporation eight climate regions in China 20 cm diameter pan E601B (E601) evaporative demand
DOI10.3390/w8100422
WOS KeywordA EVAPORATION-PAN ; REFERENCE EVAPOTRANSPIRATION ; UNITED-STATES ; WATER ; DEMAND ; BALANCE ; SURFACE ; TREND ; BASIN ; RIVER
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of China[41330529] ; Natural Science Foundation of China[41501032] ; Natural Science Foundation of China[41571024]
Funding OrganizationNatural Science Foundation of China
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000389659200007
PublisherMDPI AG
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/65472
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiang, Kang
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Li, Yanzhong,Liu, Changming,Liang, Kang. Spatial Patterns and Influence Factors of Conversion Coefficients between Two Typical Pan Evaporimeters in China[J]. WATER,2016,8(10):15.
APA Li, Yanzhong,Liu, Changming,&Liang, Kang.(2016).Spatial Patterns and Influence Factors of Conversion Coefficients between Two Typical Pan Evaporimeters in China.WATER,8(10),15.
MLA Li, Yanzhong,et al."Spatial Patterns and Influence Factors of Conversion Coefficients between Two Typical Pan Evaporimeters in China".WATER 8.10(2016):15.
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