Predicting Tree Sap Flux and Stomatal Conductance from Drone-Recorded Surface Temperatures in a Mixed Agroforestry System - A Machine Learning Approach. - Florian J. Ellsäßer; Alexander Röll; Joyson Ahongshangbam; Pierre-André Waite; Hendrayanto; Bernhard Schuldt; Dirk Hölscher (Remote. Sens., 2020)