SENSORIAMENTO REMOTO ORBITAL PARA MODELAGEM DA EVAPOTRANSPIRAÇÃO: SÍNTESE TEÓRICA E APLICAÇÕES EM COMPUTAÇÃO NA NUVEM

The objective of this review article was compiling the theoretical and technological aspects of remote sensing-based evapotranspiration (ET) modeling. We surveyed the thermohydrological concepts that support the ET phenomenon, such as soil energy fluxes ("thermo") and hydrological balance. We also present the main variants of the ET concept. Models based on remote sensing are focused on the actual ET. We survey the most disseminated models applied to satellite imagery (to be implemented by the researcher) and present their assumptions, limitations and opportunities.Finally, we surveyed ready-made actual ET databases (available on Google Earth Engine - GEE), and for these we developed interactive panels for data extraction.  With these panels it is possible to easily extract actual ET time series and perform subsequent calibrations with field data.