Josh is the developer of the PT-JPL evapotranspiration model (Fisher et al., 2008). PT-JPL is a leading global-scale remote sensing ET model and is the core algorithm for the global ET product from the ECOSTRESS mission. Josh was a NASA Scientist at the Jet Propulsion Laboratory (JPL) for over a decade and the founding Science Lead for the ECOSTRESS mission on the International Space Station. He is now the Science Lead for Hydrosat and Associate Professor of Environmental Science and Policy at Chapman University. With over 250 publications, Dr. Fisher has been named one of the world’s “most influential” researchers, in the top 0.1% of scientists with papers in the top 1% by citations for the past 7 years in a row. (Ph.D., University of California, Berkeley; B.S., University of California, Berkeley).