HR: 1340h
AN: OS13A-1002    [Abstracts]
TI: Regional variability of sea level change using a global ocean model.
AU: * Lombard, A
EM: Alix.Lombard@legos.obs-mip.fr
AF: LEGOS-CNES, Observatoire Midi-Pyrenees 18 Av. E. Belin, Toulouse, 31400, France
AU: Garric, G
EM: ggarric@mercator-ocean.fr
AF: MERCATOR-Ocean, 8-10 rue Hermes, Parc Technologique du Canal, Ramonville St Agne, 31520, France
AU: Cazenave, A
EM: anny.cazenave@cnes.fr
AF: LEGOS-CNES, Observatoire Midi-Pyrenees 18 Av. E. Belin, Toulouse, 31400, France
AU: Penduff, T
EM: Thierry.Penduff@hmg.inpg.fr
AF: LEGI-MEOM, BP53, Grenoble, 38041, France
AU: Molines, J
EM: Jean-Marc.Molines@hmg.inpg.fr
AF: LEGI-MEOM, BP53, Grenoble, 38041, France
AB: We analyse different runs of a global eddy-permitting (1/4 degree) ocean model driven by atmospheric forcing to evaluate regional variability of sea level change over 1993-2001, 1998-2006 and over the long period 1958-2004. No data assimilation is performed in the model, contrarily to previous similar studies (Carton et al., 2005; Wunsch et al., 2007; Koehl and Stammer, 2007). We compare the model-based regional sea level trend patterns with the one deduced from satellite altimetry data. We examine respective contributions of steric and bottom pressure changes to total regional sea level changes. For the steric component, we analyze separately the contributions of temperature and salinity changes as well as upper and lower ocean contributions.
DE: 1222 Ocean monitoring with geodetic techniques (1225, 1641, 3010, 4532, 4556, 4560, 6959)
DE: 1641 Sea level change (1222, 1225, 4556)
DE: 4255 Numerical modeling (0545, 0560)
DE: 4513 Decadal ocean variability (1616, 1635, 3305, 4215)
DE: 4556 Sea level: variations and mean (1222, 1225, 1641)
SC: Ocean Sciences [OS]
MN: 2007 Fall Meeting