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	Estimation of evaporative fraction from temporal changes of temperature and net radiation
	Wu Hua; Tang Bohui; Li Zhao-Liang; Tang Ronglin
	2013
会议名称	2013 33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013, July 21, 2013 - July 26, 2013
会议地点	Melbourne, VIC, Australia
关键词	Uncertainty analysis Atmospheric temperature Computer simulation Estimation Evapotranspiration Geology Mean square error Parameterization Remote sensing Surface properties
页码	1813-1816
英文摘要	To resolve uncertainties in evapotranspiration (ET) estimates caused by the retrieval error of remotely sensed data, this study develops an evaporative fraction (EF) parameterization based on surface energy balance and the assumption of generally invariant EF during the daytime. EF is deduced as a function of temporal change of surface temperatures, temporal change of air temperature, temporal change of net radiation, and fractional vegetation cover. The EF parameterization is evaluated by the simulated data from a soil-vegetation-atmosphere transfer model with a coefficient of determination (R2) of 0.786 and a root mean square error (RMSE) of 0.117. When the EF parameterization is used to estimate the daily ET of the Yucheng station in North China by in situ measurements, the estimated results are acceptable with an RMSE of 0.7 mm (relative RMSE of 25%) and an R2 of 0.837. 2013 IEEE.
收录类别	EI
会议录出版者	Institute of Electrical and Electronics Engineers Inc.
语种	英语
内容类型	会议论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/31030]
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	Wu Hua,Tang Bohui,Li Zhao-Liang,et al. Estimation of evaporative fraction from temporal changes of temperature and net radiation[C]. 见:2013 33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013, July 21, 2013 - July 26, 2013. Melbourne, VIC, Australia.

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