TRAINING: 'Using Sentinel-2 and Sentinel-3 to obtain daily Evapotranspiration maps using the TSEB model'13th February 2020
The Two-Source Energy Balance Model (TSEB) is an energy balance model which partitions surface energy fluxes into canopy and soil based on vegetation structural and biophysical parameters, land surface temperature and meteorological data. This energy fluxes estimated using Satellite images can be converted into daily evapotranspiration maps which are essential for diverse applications such as hydrological models, irrigation scheduling, among others.
Due to the amount of inputs required to run the TSEB model different sources of information are required. In this workshop a methodology which can use only Copernicus data sources is proposed.
One of the main issues to obtain daily evapotranspiration maps is that there are no high resolution thermal missions with a high revisit time. To solve this a data mining sharpening technique (Gao et al. 2012) is applied using Sentinel-2 high resolution images but without a thermal band in combination with Sentinel-3 SLSTR land surface temperature images to obtain daily land surface temperature at high resolution.