Protocol for validation and quality assessment of L2A-products - Validation activities for Sentinel-2 and Landsat-8

Abstract

The presentation reports on the methods and protocols used for validation of L2A-products on basis of reference data (AERONET sites) and provides examples of the final statistics. Validation should provide simple plots and statistical measures to characterize the performance of atmospheric correction algorithms. Validation of valid and invalid pixels classification relies on visual interpretation supported by statistical methods to ensure representativeness. Validation based on AERONET sites must be supplemented by using surface reflectance measurements provided by ad-hoc-campaigns and permanently operating stations (like RADCALNET for L2A-targets).