felyx – new release of the distributed and cloud-ready multi-matchup dataset production framework

Short abstract

felyx is a generic open-source community software initially funded by ESA to produce satellite-to-in situ matchups or systematic satellite data extraction over predefined areas, in order to support instrument cal/val activities and monitoring of geophysical quantities. After several years of operation, such as for Sentinel-3 SLSTR Sea Surface Temperature (SST) in EUMETSAT, and applications in many different contexts and parameters (wind, altimetry, …), it has been redesigned under European Union's Copernicus programme funding and managed by EUMETSAT, to add new functionalities, and much improved installation, robustness, configuration and monitoring. It comes with a distributed processing framework allowing to run the processing more efficiently over HPC infrastructure or cloud environment in containerised manner. It works natively with all GHRSST products and can use a variety of in situ measurements (drifters, Argo floats and moored buoys from CMEMS, TRUSTED buoys, radiometers from ship4sst, saildrone) including profile data, to produce matchup dataset files with flexible content and full traceability to source measurements.