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Impact of geoid improvement on ocean mass and heat transport estimates ArchiMer
Le Grand, Pascal.
One long-standing difficulty in estimating the large-scale ocean circulation is the inability to observe absolute current velocities. Both conventional hydrographic measurements and altimetric measurements provide observations of currents relative to an unknown velocity at a reference depth in the case of hydrographic data, and relative to mean currents calculated over some averaging period in the case of altimetric data. Space gravity missions together with altimetric observations have the potential to overcome this difficulty by providing absolute estimates of the velocity of surface oceanic currents. The absolute surface velocity estimates will in turn provide the reference level velocities that are necessary to compute absolute velocities at any depth...
Tipo: Text Palavras-chave: Inverse modeling calculation; Surface oceanic current; Current velocity; Oceanic fluxes.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-494.pdf
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