10.26165/JUELICH-DATA/33ZNBX Huaiyue Peng0000-0001-6323-1509(IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Germany)Maria Pilar Cendrero-Mateo0000-0001-5887-7890(Laboratory of Earth Observation, Image Processing Laboratory, University of Valencia, Spain)Juliane Bendig0000-0002-6454-5654(IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Germany)Bastian Siegmann0000-0002-1232-7102(IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Germany)Kelvin Acebron0000-0002-8523-0256(IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Germany)Caspar Kneer0000-0002-2570-7788(IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Germany)Kari Kataja(Specim Spectral Imaging Ltd., Finland)Lars Grygosch0009-0000-4372-3071(IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Germany)Onno Muller0000-0002-0473-5632(IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Germany)Uwe Rascher0000-0002-9993-4588(IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Germany) Jülich DATA 2026 Solar-induced chlorophyll fluorescence (SIF) is used as a proxy of photosynthetic efficiency. However, interpreting top-of-canopy (TOC) SIF in relation to photosynthesis remains challenging due to canopy structure and Non-photochemical quenching. Therefore, ground-based, high-spatial-resolution data sets are needed to characterize the described effects and to be able to downscale TOC SIF to the leafs where the photosynthetic processes are taking place. Julaine Bendig(IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Germany)