SATELLITE-BASED EVAPOTRANSPIRATION FOR CROP WATER USE MAPPING AND DROUGHT MONITORING

SATELLITE-BASED EVAPOTRANSPIRATION FOR CROP WATER USE MAPPING AND DROUGHT MONITORING Gabriel Senay Research Physical Scientist (USGS-EROS), Professor South Dakota State University Friday, August 26, 2016 Evapotranspiration (ET) maps are useful for characterizing landscape water use patterns and understanding basin water budget dynamics. Surface energy balance modeling approaches that integrate remotely sensed land surface temperature and weather datasets have been successful in estimating ET at daily, seasonal and annual times scales for various applications-- from crop water use mapping to basin-scale water budget studies and drought monitoring and early warning systems. The formulation and implementation of the Operational Simplified Surface Energy Balance (SSEBop) ET model will be discussed. Application examples using satellite data streams from Landsat and MODIS (MODerate resolution Imaging Spectroradiometer) sensors will be presented for the US and the globe.