|Paper title||Integration of Sentinel-6 wave measurements in WAVE-TAC Copernicus Marine Service|
|Form of presentation||Poster|
In the frame of the second phase of the Copernicus Marine Environment Monitoring Service (CMEMS), starting in 2022, the WAVE Thematic Assembly Centre (TAC), a partnership between CLS and CNES, is responsible for the provision of a near-real-time wave service that started in July 2017. Near-real-time wave products derived from altimetry and SAR measurements are processed and distributed onto the CMEMS catalogue.
This presentation will describe the existing products – along-track Level 3 and gridded Level 4 – and their applications such as near-real-time assimilation in wave forecasting systems, validation of wave hindcasts, etc.
Early 2022, Sentinel-6 will integrate the existing altimetry constellation measuring significant wave heights (SWH) and collocated wind speed. Sentinel-6 will become the reference mission of the CMEMS L3 SWH product, succeeding Jason-3 once it changes orbit. The Sentinel-6 Level-2P and Level-3 processing is under EUMETSAT and CNES responsibility and is operated by CLS. We will describe the processing steps from Level-2 to Level-3 product carried out to produce a homogeneous dataset with regard to other WAVE-TAC altimetry datasets.
The daily gridded Level-4 SWH product will also benefit from the integration of Sentinel-6. The increased spatial and temporal density of measurements will allow a better mapping of the wave heights.
In the frame of this presentation, we will produce a thorough comparison of CMEMS Level-3 & Level-4 SWH products versus in-situ measurements provided by the In-Situ TAC. In particular, we will highlight the changes induced by the integration of the new Sentinel-6 mission in the WAVE-TAC product.