Remote assessment of chlorophyll fluorescence (ChlF) as indicator for canopy vitality using UAVs with robust lightweight instrumentation (B02)

• Subject Area: Geodesy, Photogrammetry, Remote Sensing, Geoinformatics, Cartography ; Measurement Systems ; Microsystems
• Term: since 2022
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 459819582

B2.1 4D-canopy-vitality using structural and active ChlF data from UAV-based remote sensingWe will use remote assessments of active ChlF via an unmanned aerial vehicle (UAV) to generate detailed repeated spatial maps to visualize and assess tree vitality, identify hot spots within the forests and transfer the sample based findings into area wide monitoring. In doing so, we will further develop the models for chlorophyll fluorescence assessment based on UAV carried remote sensing devices, calibrated against the tree leaf measurements. B2.2 Lightweight robust versatile instrumentation for active canopy fluorescence measurements with leaf-level resolution from UAVWe will develop a strongly miniaturized, highly integrated lightweight UAV-based active ChlF measurement using LiDAR (Light detection and ranging) techniques with an efficient new scanning paradigm. It will allow for largely extended flight campaigns with high spatial resolution. Thereby, the calibration of the UAV borne data will directly profit from the leaf sensor network of B1.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1537: ECOSENSE – Multiscale quantification of spatio-temporal dynamics of ecosys-tem processes by smart autonomous sensor networks
• Applicant Institution: Albert-Ludwigs-Universität Freiburg
• Project Heads: Dr.-Ing. Anna Göritz; Professorin Dr. Barbara Koch; Professor Dr.-Ing. Alexander Reiterer; Professorin Dr.-Ing. Ulrike Wallrabe