One of the key outputs of the SRIX4VEG campaigns and workshops was the development of a community agreed best practice protocol for UAV-based Surface Reflectance Validation activities. This protocol has been developed in collaboration with the Committee on Earth Observation Satellites (CEOS) Working Group on Calibration and Validation (WGCV) and has recently been released in version 1 after extensive review by the community.
Emphasis was placed on adopting metrological practices and aligning with the CEOS Fiducial Reference Measurements (CEOS-FRM) concept. Particular attention is devoted to assessing the uncertainty budget associated with these measurements, ensuring their suitability for validating satellite-based surface reflectance products. The protocol is aimed at the users of UAV-mounted instruments capable of validating surface reflectance products and those wishing to enter this field.
The FRM4Veg team would like to take the opportunity to express their gratitude to the community for their contribution towards the document process through writing and reviewing and their enthusiastic participation in the SRIX4Veg campaigns in Barrax, Spain in 2022 and Calperum, Australia in 2024.
The protocol is available for download via the Publications page.
