Estimating the circulation from hydrography and satellite altimetry in the Southern Ocean: limitations imposed by the current geoid models

Sea-surface height data from satellite altimetry offers itself as avery powerful means of determining the general ocean circulation. Inorder to use it in time-independent problems, one has to use theequipotential height of a geoid model as a reference surface. Up tonow, this reference surface is not...

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Bibliographic Details
Published in:Deep Sea Research Part I: Oceanographic Research Papers
Main Authors: Losch, Martin, Schröter, Jens
Format: Article in Journal/Newspaper
Language:unknown
Published: 2004
Subjects:
Online Access:https://epic.awi.de/id/eprint/4319/
https://epic.awi.de/id/eprint/4319/1/Los2001c.pdf
https://doi.org/10.1016/j.dsr.2004.02.012
https://hdl.handle.net/10013/epic.14894
https://hdl.handle.net/10013/epic.14894.d001
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Summary:Sea-surface height data from satellite altimetry offers itself as avery powerful means of determining the general ocean circulation. Inorder to use it in time-independent problems, one has to use theequipotential height of a geoid model as a reference surface. Up tonow, this reference surface is not known to an accuracy sufficientfor ocean state estimation, as is demonstrated in the context of aninverse analysis of a particular hydrographic section in theSouthern Ocean with altimetry data relative to the geoid height ofthe EGM96 geoid model.