Monitoring Sentinel-3A: S3MPC activities to ensure a consistent accurate dataset
Event: 2016 SAR Altimetry Workshop
Session: SAR mode performances: SAR CALVAL from Cryosat-2 and Sentinel-3
Presentation type: Type Poster
Contribution: PDF file
Sentinel-3A is the first altimeter to operate in delay-Doppler mode over all ocean surfaces, with the advantages of SAR altimetry expected to set new standards for the accuracy of global sea level records. To contribute usefully to the development of climate data records, the performance of the instrument needs to be fully monitored. This talk will give an overview of the processes undertaken by the Sentinel-3 Mission Performance Centre from the internal monitoring of calibration modes to the assessment of its geophysical estimates. With the wide remit of the mission, the validation activities will span consistency with other altimeters, comparison with dedicated ground observations and spectral analysis. Metocean observations, such as wind speed, wave height and total liquid water content will be contrasted with output from a high-resolution atmospheric model, and sea-ice and land-ice observations will be compared with Cryosat-2, Operation Ice Bridge, and in situ surveys.