Predicting daily evapotranspiration (ETd) from short-term values

Muluneh Yitayew; Paul Brown

doi:10.1061/(ASCE)0733-9437(1990)116:3(387)

Predicting daily evapotranspiration (ET_d) from short-term values

Muluneh Yitayew, Paul Brown

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Application of a remote sensing technique for estimating regional evapotranspiration requires extrapolation of instantaneous values to periods on the order of 1 day or more to be of practical use. A method for developing an extrapolation coefficient based on earth-sun geometry is presented. The validity of the method and applicability of the concept is evaluated using year-long regional values of measured Penman evapotranspiration. The results demonstrate that the use of an extrapolation coefficient for long-term regional evapotranspiration estimation has a potential for future use.

Original language	English (US)
Pages (from-to)	387-398
Number of pages	12
Journal	Journal of Irrigation and Drainage Engineering
Volume	116
Issue number	3
DOIs	https://doi.org/10.1061/(ASCE)0733-9437(1990)116:3(387)
State	Published - May 1990

ASJC Scopus subject areas

Civil and Structural Engineering
Water Science and Technology
Agricultural and Biological Sciences (miscellaneous)

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10.1061/(ASCE)0733-9437(1990)116:3(387)

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abstract = "Application of a remote sensing technique for estimating regional evapotranspiration requires extrapolation of instantaneous values to periods on the order of 1 day or more to be of practical use. A method for developing an extrapolation coefficient based on earth-sun geometry is presented. The validity of the method and applicability of the concept is evaluated using year-long regional values of measured Penman evapotranspiration. The results demonstrate that the use of an extrapolation coefficient for long-term regional evapotranspiration estimation has a potential for future use.",

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AB - Application of a remote sensing technique for estimating regional evapotranspiration requires extrapolation of instantaneous values to periods on the order of 1 day or more to be of practical use. A method for developing an extrapolation coefficient based on earth-sun geometry is presented. The validity of the method and applicability of the concept is evaluated using year-long regional values of measured Penman evapotranspiration. The results demonstrate that the use of an extrapolation coefficient for long-term regional evapotranspiration estimation has a potential for future use.

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Predicting daily evapotranspiration (ET_d) from short-term values

Abstract

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