New release of Ssalto/DUACS products: 21 years of high resolution Sea Level products reprocessed

Isabelle Pujol (CLS Space Oceanography Division, France)


Yannice Faugere (CLS, France); Gérald Dibarboure (CLS, France); Guillaume Taburet (CLS, France); Nicolas Picot (CNES, France); Emilie Bronner (CNES, France)

Event: 2014 Ocean Surface Topography Science Team Meeting

Session: Science Results from Satellite Altimetry: Finer scale ocean processes (mesoscale and coastal)

Presentation type: Type Poster

During the last 20 years, altimeter high quality near real time and delayed time Level3 (along-track cross-calibrated SLA) and Level4 products (merging multiple sensors) were developed in parallel with Level2 (a.k.a [O/I]GDR) processing improvements. Directly usable and easier to manipulate, L3/4 products are vastly used and contribute to various studies in different fields, from climate and meteorological phenomena, to geophysics and biology.
In early 2014, many changes have been implemented in the products and processing, impacting both along-track and gridded products. A full reprocessed dataset of the 20 years of altimeter measurements, including all of these changes, has been delivered in April 2014. Compared to the previous version of the products, it also takes advantage of new missions and improved L2 altimeter standards. We present here the reprocessed dataset, that shows improvements at climatic scales as well as mesoscales.
Isabelle Pujol
CLS Space Oceanography Division