Estimation of Evapotranspiration over Huangfuchuan Watershed Using Remote Sensing

doi:11894/1005-829x.2008.28(1).102

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Estimation of Evapotranspiration over Huangfuchuan Watershed Using Remote Sensing
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                        11894/1005-829x.2008.28(1).102
                    
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                        YU HongboYU Hongbo
The Key Lab of Inner Mongolia Grassland, The Province-Ministry Co-constructing Training Base of National Key Lab, Hohhot, Inner Mongolia 010021, China;Inner Mongolia University, Hohhot, Inner Mongolia 010021, China;Inner Mongolia Normal University, Hohhot, Inner Mongolia 010022, China
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YANG JieYANG Jie
The Key Lab of Inner Mongolia Grassland, The Province-Ministry Co-constructing Training Base of National Key Lab, Hohhot, Inner Mongolia 010021, China;Inner Mongolia University, Hohhot, Inner Mongolia 010021, China
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Bao TiejunBao Tiejun
The Key Lab of Inner Mongolia Grassland, The Province-Ministry Co-constructing Training Base of National Key Lab, Hohhot, Inner Mongolia 010021, China;Inner Mongolia University, Hohhot, Inner Mongolia 010021, China
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Clc Number:P338.6
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Abstract:

Instantaneous evapotranspiration in Huangfuchuan watershed is retrieved based on the estimation of land surface characteristic parameters and fluxes using Landsat5 tM. Daily evapotranspiration is found by scaling. Water body is dealtwith as bare land. The characteristics between water body and soil are very dis-tinct,so Penman model is used to calculate water evaporation and the calculated resultis merged into daily evapotranspiration. Results show thatdaily evapotranspiration retrieved is accord with the status of land sur-face. The relative error of surface temperature retrieved is 0. 58% and the relative error of daily evapotransp-i ration retrieved is 11. 75%,which are both permitted.

Key words:Huangfuchuan watershed;Landsat 5 TM;evapotranspiration;remote sensing

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于红博,杨劼,包铁军.应用遥感方法估算皇甫川流域蒸散(发)量[J].水土保持通报英文版,2008,(1):102-105,114

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Received:August 29,2007
Revised:October 25,2007
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