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| Titel |
Gravitational tensor in the GOCE reference frame by direct harmonic synthesis |
| VerfasserIn |
Josef Sebera, Carl A. Wagner, Aleš Bezděk, Johannes Bouman, Jaroslav Klokocnik, Jan Kostelecky, Pavel Novak |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250037823
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| Zusammenfassung |
| The first realisation of satellite gradiometry, ESA's satellite GOCE, successfully collects a new type of observation, i.e. all components of the gravitational tensor measured by six accelerometers (Electrostatic Gravity Gradiometer). The relevant data processing will be a very demanding task. It includes (among others) many steps with a large number of equations and unknowns, where the complexity can be roughly described by the amount of observations and the satellite altitude. A quick look into the quality of the measured values and their reliability can be also provided by using an a priori gravity field model to synthesize the tensor measurements. Since the observations are measured in the GOCE reference frame with measured orientation parameters, generated values have to be rotated from the conventional frame (Earth-Fixed System, Local North Oriented Frame) to the GOCE reference frame. Here we compare the conventional formulas for gravity gradients and direct harmonic synthesis using rotated base functions according to Hotine's formalism. |
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