Evapotranspiration is so crucial for determining amount of the irrigation and the effective water
management planning. Moreover, it is vital for determining agricultural drought management and
determination the actual evapotranspiration ın a region is critical for early drought warning systems. The
main object of this study was to assess accuracy of the remote sensing method (METRIC) by calibrating
with the bowen ratio observations at the same time. The research was carried out in the west of Marmara
Region, Turkey. Landsat 5 images was used to determine the metric algorithm. By using this algorithms
are found. Landsat 5 images file were used to determine actual evapotranspiration and the image’s date
was June 11 in 2010. This date was used for calibration with available terrestrial observation by using
bowen ratio in that time. Landsat images obtained from the web site, earthexplorer.usgs.gov, and results
of bowen ratio taken from micrometeorology station. As a result, energy balance parameters that are net
radiation, soil heat flux and latent heat flux were compared both metric algorithm and the bowen ration
in the images time. The results are found so close to each other.
Eser Bora, "Determination of the actual evapotranspiration by using remote sensing methods," Proc. SPIE 10421, Remote Sensing for Agriculture, Ecosystems, and Hydrology XIX, 104210J (Presented at SPIE Remote Sensing: September 13, 2017; Published: 2 November 2017); https://doi.org/10.1117/12.2277834.
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