Proximal sensing at VPDrought in Pfynwald https://www.wsl.ch/de/projekte/proximal-sensing-at-vpdrought-in-pfynwald/
In the VPDrought project, canopy reflectance and temperature are continuously measured on selected trees using point sensors, providing high temporal resolution data that serve as early stress indicators and reference points for validating remote sensing observations.
All sensors are mounted on poles fixed to the scaffold structures above the tree
