Spatial Patterns and Influence Factors of Conversion Coefficients between Two Typical Pan Evaporimeters in China

doi:10.3390/w8100422

	Spatial Patterns and Influence Factors of Conversion Coefficients between Two Typical Pan Evaporimeters in China
	Li, Yanzhong 1,2; Liu, Changming 1; Liang, Kang 1
刊名	WATER
	2016-10-01
卷号	8 期号:10 页码:15
关键词	conversion coefficients pan evaporation eight climate regions in China 20 cm diameter pan E601B (E601) evaporative demand
ISSN号	2073-4441
DOI	10.3390/w8100422
通讯作者	Liang, Kang(liangk@igsnrr.ac.cn)
英文摘要	Pan 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.
资助项目	Natural Science Foundation of China[41330529] ; Natural Science Foundation of China[41501032] ; Natural Science Foundation of China[41571024]
WOS关键词	A EVAPORATION-PAN ; REFERENCE EVAPOTRANSPIRATION ; UNITED-STATES ; WATER ; DEMAND ; BALANCE ; SURFACE ; TREND ; BASIN ; RIVER
WOS研究方向	Water Resources
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000389659200007
资助机构	Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/65471]
专题	中国科学院地理科学与资源研究所
通讯作者	Liang, Kang
作者单位	1.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
推荐引用方式 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.