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| Titel |
Error assessment of GOCE SGG data using along track interpolation |
| VerfasserIn |
J. Bouman, R. Koop |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: G1. The new gravity field mission (CHAMP, GRACE, GOCE): from measurements to geophysical interpretation ; Nr. 1 (2003-06-17), S.27-32 |
| Datensatznummer |
250000032
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| Publikation (Nr.) |
 copernicus.org/adgeo-1-27-2003.pdf |
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| Zusammenfassung |
| GOCE will be the first satellite gravity mission
measuring gravity gradients in space using a dedicated instrument
called a gradiometer. High resolution gravity field
recovery will be possible from these gradients. Such a recovery
requires a proper description of the gravity gradient
errors, where the a priori error model is for example based on
end-to-end instrument simulations. One way to test the error
model against real data, i.e. to see if the a priori model really
describes the actual error, is to compare along track interpolated
gradients with the measured gradients. The difference
between the interpolated and measured gravity gradients is
caused by, among others, the interpolation error and the measurement
errors. The idea is that if the interpolation error is
small enough, then the differences should be predicted reasonably
well by the error model. This paper discusses a simulation
study where the gravity gradient errors are generated
with an end-to-end instrument simulator. The measurement
error will be compared with the interpolation error and we
will assess the latter as a function of the sampling interval. |
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