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Determination interative des geoides altimetriques |
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| Authors: | J. P. Barriot N. Vales |
| Affiliation: | (1) Centre Géologique et Géophysique, Université des Sciences et Techniques du Languedoc, Place Eugène Bataillon, 34060 Montpellier, France;(2) Bureau Gravimétrique International, 18 Avenue Edouard Belin, 31000 Toulouse, France |
| Abstract: | Geoid heights measured by spatial altimetry must be corrected for systematic bias due to orbital error. This requires the solution of a very large overdetermined and underconstrained system of linear equations. We present a rigorous procedure of solution by successive iterations (block relaxation method) and define its validity on a synthetic example from the Mediterranean area. |
| Keywords: | Geo?de Altimétrie Erreur orbitale Réduction Systèmes singuliers inverse de Drazin |
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