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| Titel |
On the role of systematic errors in multi-spacecraft gradient computation |
| VerfasserIn |
J. De Keyser, F. Darrouzet |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250062948
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| Zusammenfassung |
| An essential objective of multi-spacecraft missions is the disentanglement of spatial and temporal variations. The computation of space-time gradients is a basic tool to accomplish this. Systematic errors on the measurements, however, can easily overwhelm the information content in the measurement differences between closely spaced spacecraft. Therefore, they form a major obstacle for computing gradients from multi-spacecraft data. We show that it is possible to identify and compensate for such systematic errors while computing the gradient with least-squares techniques. In spite of a number of intrinsic limitations to the approach, this method opens up new avenues for scientific exploitation of multi-spacecraft data from experiments that have turned out to be hard to calibrate. |
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