Precision of regional mean sea level and continental ice sheet topography as determined by satellite altimetry
| Autor: | C. Boissier, S. Houry, J. Benveniste, F. Blanc, J. F. Minster, Pierre Mazzega, C. Brossier, P. Vincent, Frédérique Rémy, Frédéric Jourdin |
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| Rok vydání: | 1991 |
| Předmět: |
Atmospheric Science
geography geography.geographical_feature_category Observational error Meteorology Aerospace Engineering Astronomy and Astrophysics Geodesy Secular variation Geophysics Space and Planetary Science Sea ice thickness General Earth and Planetary Sciences Polar Altimeter Ice sheet Sea ice concentration Sea level Geology |
| Zdroj: | Advances in Space Research. 11:87-92 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/0273-1177(91)90407-b |
| Popis: | Altimeter data provide a useful complement to tide gages for monitoring the mean sea level or the continental ice topography. We discuss here how these signals can be separated from measurement errors and from other ocean signals. With existing data, the formal error which can be achieved is of the order of 5 cm rms, for a regional, yearly averaged, mean sea surface, and 50 cm rms for continental ice. These errors are likely to improve further as better orbits and corrections are made available. This suggests that secular trends will be observable when 20 years of coherent data (from SEASAT to the Polar Platforms) will be assembled. |
| Databáze: | OpenAIRE |
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