Smartphone evapotranspiration field campaign data

This collection contains observations made by smartphone and an additional handheld sensor in order to estimate evapotranspiration. These include luminence, surface temperature, air temperature, air pressure, relative humidity, and wind speed. The dataset also contains hourly routine meteorological observations, as well as evapotranspiration observations by weighing lysimeters and eddy covariance, collected at various sites in The Netherlands, Germany, and Switzerland. The smartphone observations were used to train a simple machine learning algorithm on the observed fluxes.