TY - JOUR T1 - Jason-2 in DUACS: Updated System Description, First Tandem Results and Impact on Processing and Products A1 - Dibarboure,G. A1 - Pujol,M. -I. A1 - Briol,F. A1 - Le Traon,Pierre-Yves A1 - Larnicol,Gilles A1 - Picot,Nicolas A1 - Mertz,F. A1 - Ablain,M. AD - CLS, Space Oceanog Div, F-31520 Ramonville St Agne, France. AD - IFREMER, Plouzane, France. AD - Ctr Natl Etud Spatiales, F-31055 Toulouse, France. UR - https://doi.org/10.1080/01490419.2011.584826 DO - 10.1080/01490419.2011.584826 KW - Jason-2 KW - DUACS KW - multimission KW - altimetry KW - DFS KW - cross-calibration KW - reference mission KW - Jason tandem N2 - For more than 13 years, the multisatellite DUACS system has been providing the altimetry community with Near Real Time and Delayed Time products ranging from reduced GDR (also known as CorrSSH) to along-track Sea Level Anomalies (SLA) and multimission Maps of Sea Level Anomalies (MSLA). A post-Jason-2 description of the DUACS system is given, with input data, processing and products, and a focus on the DT-2010 reprocessing involving a total of almost 60 years worth of altimetry data from GEOSAT to Jason-2. Less than one month after launch, Jason-2 proved to be a strong asset for multisatellite applications as it was able to replace Jason-1 as the reference mission in DUACS. Furthermore, the new Jason-2/Jason-1 tandem configuration provides an unprecedented duo for mesoscale and circulation observation. More generally, the quality of Jason-2 has a large impact in DUACS on a number of fronts: in the continuity of the reference mission for climate applications exploiting DUACS products, in the new multi-reference orbit error reduction scheme, or for new metrics derived from a Degrees of Freedom of Signal analysis applied to the multimission mapping. This paper gives an overview of the many impacts of the integration of Jason-2 into DUACS. Y1 - 2011 PB - Taylor & Francis Inc JF - Marine Geodesy SN - 0149-0419 VL - 34 IS - 3-4 SP - 214 EP - 241 ID - 16791 ER -