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Evapotranspiration (ET) is an important parameter for water resource management.Compared to the traditional ET computation and measurement methods, the ET computation methodbased on remote sensing has the advantages of quickness, precision, raster mapping and regionalscale. SEBAL, an ET computation model using remote sensing method is based on the surfaceenergy balance equation which is a function of net radiance flux, soil heat flux, sensible heat fluxand latent heat flux. The former three fluxes can be computed through the parameters retrieved fromremote sensing image, then the latent heat flux can be obtained to provide energy for ET. Finally we
Evapotranspiration (ET) is an important parameter for water resource management. Compared to the traditional ET computation and measurement methods, the ET computation method based on remote sensing has advantages of quickness, precision, raster mapping and regionalscale. SEBAL, an ET computation model using remote sensing method based on the surfaceenergy balance equation which is a function of net radiance flux, soil heat flux, sensible heat flux and latent heat flux. The former three fluxes can be computed through the parameters retrieved from remote sensing image, then the latent heat flux can be obtained to provide energy for ET. Finally we