Dataset for: Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field

In addition to the fluorescence data, surface temperature was also measured in both treatments using infrared radiometers. Last but not least "Airflex", described by Daumard et al., (2015), IEEE Transactions on Geoscience and Remote Sensing. DOI: 10.1109/TGRS.2015.2418992, a passive fluorimeter measuring the filling-in of the atmospheric oxygen absorption band at 760 nm was installed in an ultralight plane and flown during the most critical days of the campaign over the control and water stress treatments.