IRTA develops a product to measure vegetation evapotranspiration based on satellite obtained data for the European Space Agency


IRTA has contributed to the launch of the Sentinels for Evapotranspiration project (SEN4ET), led by the Danish Hydrological Institute. The goal is to develop a product to measure vegetation evapotranspiration with the European Space Agency’s Sentinel Satellites.

irta evapotranspirationThe satellite obtained data will help accurately determine the necessary amount of water to irrigate a field, thus optimizing the use of natural resources. An open code software will assist users create evapotranspiration maps. The ESA will provide free access to the platform.

The launch of ESA’s Sentinel satellites is the most ambitious European Commission project in the field of Earth Observation. IRTA’s Efficient Use of Water program will merge the images obtained every five days by Sentinel Satellites 2 and 3 to generate evapotranspiration maps with a 10 to 20 m resolution. This way, researchers will obtain plot scaled data with an adequate frequency.

Through teledetection, researchers will analyze different evapotranspiration models and will validate them using flux tower, towers planted on the field that measure heat fluxes between the atmosphere and the surface of the Earth. There will be a broad variety of vegetal covers (crops, pasture and forest) and different climatic contitions.

The project has the support of the United States Department of Agriculture, Lund University (Sweden), SEGES Consultancy (Denmark), the General Irrigators Community of Urgell Canals and Waters of Segarra Garrigues.

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