AI4Copernicus – Sentinel-2 Pre-processing (Security Bootstrapping services)
The Security Bootstrapping services and resources have been developed in order to support the AI4Copernicus project’s open calls by reduce the time and resources of the bidders in the data preparation and allowing them to focus on the development of innovative services based on AI. This pipeline processes a S2 product in native format to generate a product with a common resolution for all the bands in GeoTiff format. The process allows to apply a land/sea mask and a cloud mask in order to have an output product ready for analysis.
The Sentinel-2 Pre-processing resource is available as a dockerized application. It is one of the Security Bootstrapping Services developed in AI4Copernicus.
The input of this pipeline is a Sentinel-2 L2A product in its native SENTINEL-SAFE format (zipped or unzipped products are both supported). They are also supported Sentinel-2 L1c products in its native SENTINEL-SAFE format. In this case, sen2cor tool is used internally to process the L2A product before preprocessing.
Several parameters are exposed (e.g. DEM, cloud mask type), including when possible, a default value to facilitate the use by non-expert users.
The output is a GeoTiff (by default) terrain-corrected image containing the selected bands. Depending on the selected parameters, pixels in sea/land or/and cloudy have been set to NoData.