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FLARE network performance: automated on-demand calibration for space, airborne and UAV assets

Labsphere has created automated vicarious calibration sites using the SPecular Array Radiometric Calibration (SPARC) mirror technology in the new Field Line-of-sight Automated Radiance Exposure (FLARE) network. A short introduction to FLARE and SPARC will be given showing how arduous field ground calibrations can now be done remotely through FLARE nodes via an internet portal. Preliminary results of the performance of the system’s absolute radiometric and spatial calibration capability were published in 2020, demonstrating validation and uncertainty against current methods of remote calibration and spatial and geometric performance against edge and line targets. This paper will describe FLARE’s impact to ongoing evaluation and maturation of automated analysis processes for all data processing levels for space satellite and UAV imagers.