NDLI: Estimation of evaporative fraction from temporal changes of temperature and net radiation

Content Provider	IEEE Xplore Digital Library
Author	Jing Lu Zhao-Liang Li Ronglin Tang Bohui Tang Hua Wu Labed, J.
Copyright Year	2013
Description	Author affiliation: State Key Lab. of Resources & Environ. Inf. Syst., Inst. of Geogr., Sci. & Natural Resources Res., Beijing, China (Jing Lu; Ronglin Tang; Bohui Tang; Hua Wu) \|\| ICube, UdS, Illkirch, France (Labed, J.) \|\| Univ. of Chinese Acad. of Sci., Beijing, China (Zhao-Liang Li)
Abstract	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 $(R^{2})$ 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 $R^{2}$ of 0.837.
Sponsorship	IEEE Geosci. Remote Sens. Soc.
Starting Page	1813
Ending Page	1816
File Size	314158
Page Count	4
File Format	PDF
ISBN	9781479911141
ISSN	21536996
DOI	10.1109/IGARSS.2013.6723152
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-21
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mathematical model Atmospheric modeling Equations Remote sensing Atmospheric measurements Temperature sensors net radiation EF ET surface temperature
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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