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	Estimation of annual actual evapotranspiration from nonsaturated land surfaces with conventional meteorological data
	Yu Q.
	2004
关键词	complementary relationship of evapotranspiration potential evapotranspiration actual evapotranspiration potential evaporation
英文摘要	Views diverge greatly on the relationship between actual evapotranspiration (AE) and potential evapotranspiration (PE). Penman showed that AE is determined in intensity by PE and changes proportionally as a function of PE. In contrast, Bouchet indicated that AE determines PIE and varies inversely with PE. Based on nearly 30 years data from 432 weather stations and 512 hydrological stations, in China, the two different theories, Penman's assumption and Bouchet's complementary relationship between AE and PE, were tested on nine river basins. With data integration technique, the complementary relationship between AE and PE was displayed entirely. A general model to estimate the actual evapotranspiration from nonsaturated surfaces by routine meteorological observations has been established on the basis of thorough analysis of the concept of PE. The results show that the calculations are all in error control of <10%, except for a few years over the Yellow River Basin.
出处	Science in China Series D-Earth Sciences
卷	47
期	3
页	239-246
收录类别	SCI
语种	英语
ISSN号	1006-9313
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23162]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Yu Q.. Estimation of annual actual evapotranspiration from nonsaturated land surfaces with conventional meteorological data. 2004.

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