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| Ablain, M.; Cazenave, A.; Valladeau, G.; Guinehut, S.. |
| A new error budget assessment of the global Mean Sea Level (MSL) determined by TOPEX/Poseidon and Jason-1 altimeter satellites between January 1993 and June 2008 is presented using last altimeter standards. We discuss all potential errors affecting the calculation of the global MSL rate. We also compare altimetry-based sea level with tide gauge measurements over the altimetric period. Applying a statistical approach, this allows us to provide a realistic error budget of the MSL rise measured by satellite altimetry. These new calculations highlight a reduction in the rate of sea level rise since 2005, by similar to 2 mm/yr. This represents a 60% reduction compared to the 3.3 mm/yr sea level rise (glacial isostatic adjustment correction applied) measured... |
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| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00218/32920/31405.pdf |
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| Dibarboure, G.; Pujol, M. -i.; Briol, F.; Le Traon, Pierre-yves; Larnicol, Gilles; Picot, Nicolas; Mertz, F.; Ablain, M.. |
| 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... |
| Tipo: Text |
Palavras-chave: Jason-2; DUACS; Multimission; Altimetry; DFS; Cross-calibration; Reference mission; Jason tandem. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00057/16791/14366.pdf |
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