Abstract's details
New CNES CLS 2022 mean sea surface
CoAuthors
Event: 2022 Ocean Surface Topography Science Team Meeting
Session: The Geoid, Mean Sea Surfaces and Mean Dynamic Topography
Presentation type: Type Oral
Contribution: PDF file
Abstract:
A new Mean Sea Surface model, the CNES_CLS_2021 MSS, has been determined. It is based on the integration of more than 27 years of altimetric data, using more than 10 altimeters from the historical Topex/Poseidon to the in-flight Sentienl-3A/B missions, including ERM and geodetic/drifting orbits. As the previous 2015 version this new MSS is focused on the fallowing points of improvement which remains a permanent challenge:
• the correction of ocean variability, especially for wavelengths lover than 200 km.
• the accuracy of altimetric data and therefore of the MSS near the coast.
• a most accurate mapping of the finest topographic structures until wavelengths shorter than 10 km.
A particular attention was also paid to the Arctic area by combining traditional SSH with leads.
We therefore propose a synthesis of analyzes of these different aspects in order to quantify the improvements of this new MSS compared to other existing MSS.
• the correction of ocean variability, especially for wavelengths lover than 200 km.
• the accuracy of altimetric data and therefore of the MSS near the coast.
• a most accurate mapping of the finest topographic structures until wavelengths shorter than 10 km.
A particular attention was also paid to the Arctic area by combining traditional SSH with leads.
We therefore propose a synthesis of analyzes of these different aspects in order to quantify the improvements of this new MSS compared to other existing MSS.