Remote Sensing of Evapotranspiration

The generation of evapotranspiration maps using Landsat Satellite images is based on METRIC (Mapping EvapoTranspiration at high Resolution and Internalized Calibration). This process was initially funded in the early 2000s by the Idaho Department of Water Resources. Since then, evapotranspiration maps for eastern southern Idaho have been generated for 1986, 1996, 2000, 2006, 2008, 2009, 2010, 2011 and 2013. We are currently working on 2016. The images/maps are available on line from the IDWR ET GIS website. The process has also been applied at various locations throughout the United States and the world.