H011-0006
SAR and SARin Altimetry Processing on Demand for CryoSat-2 and Sentinel-3 at ESA G-POD

Monday, 7 December 2020
Poster
Jérôme Benveniste, European Space Agency (ESA-ESRIN), Earth Observation Programmes, Frascati, Italy, Salvatore Dinardo, CLS (Collect Localisation Satellites), Toulouse, France, Giovanni Sabatino, Progressive Systems/ESRIN, FRASCATI, Italy, Marco Restano, SERCO/ESRIN, Frascati, Italy and Americo Ambrozio, DEIMOS/ESRIN, Frascati, Italy
Abstract:
The scope of this presentation is to feature the G-POD SARvatore service to users for the exploitation of CryoSat-2 and Sentinel-3 data, which was designed and developed by the Altimetry Team in the Earth Observation R&D division at ESA-ESRIN. The G-POD service coined SARvatore (SAR Versatile Altimetric TOolkit for Research & Exploitation) is a web platform that allows any scientist to process on-line, on-demand and with user-selectable configuration CryoSat-2 SAR/SARin and Sentinel-3 SAR data, from L1A (FBR) data products up to SAR/SARin Level-2 geophysical data products.

The G-POD graphical interface allows users to select a geographical area of interest within the time-frame related to the Cryosat-2 SAR/SARin FBR and Sentinel-3 L1A data products availability in the service catalogue. The processor prototype is versatile, allowing users to customize and to adapt the processing according to their specific requirements by setting a list of configurable options. Pre-defined processing configurations (Official CryoSat-2, Official Sentinel-3, Open Ocean, Coastal Zone, Inland Water (20Hz & 80Hz), Ice and Sea-Ice) are available, retracked with SAMOSA, SAMOSA+ and SAMOSA++. More retrackers under development are joining the SARvatore Family to maximize the exploitation of CryoSat-2 and Sentinel-3 data over all surfaces providing user with specific processing options not available in the default processing chains. The output data products are generated in standard NetCDF format, therefore compatible with the multi-mission “Broadview Radar Altimetry Toolbox” (BRAT, http://www.altimetry.info) and typical tools.

To respond to the request of hydrologists, and simulate data that a river gauge would provide, SARvatore will soon include a post-processing service to convert water level estimates in L2 data to virtual station water level values, which are typically required by hydrologists. Another future feature, being tested and fine-tuned at this time, is the Fully-Focused SAR processing.

The service is open, free of charge (supported by ESA – please give feedback to support its funding!) for worldwide scientific applications and available at: https://gpod.eo.esa.int/services/CRYOSAT_SAR/, https://gpod.eo.esa.int/services/CRYOSAT_SARIN/, https://gpod.eo.esa.int/services/SENTINEL3_SAR/.

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