 |
| Titel |
The possibility of the calibration/validation of the GOCE data with the balloon-borne gradiometer |
| VerfasserIn |
J. B. Zieliński, M. S. Petrovskaya |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7340
|
| Digitales Dokument |
URL |
| Erschienen |
In: G1. The new gravity field mission (CHAMP, GRACE, GOCE): from measurements to geophysical interpretation ; Nr. 1 (2003-10-02), S.149-153 |
| Datensatznummer |
250000049
|
| Publikation (Nr.) |
 copernicus.org/adgeo-1-149-2003.pdf |
|
|
|
|
|
| Zusammenfassung |
| A new calibration/validation experiment for
GOCE mission is proposed. Simultaneously with the satellite
mission another gradiometer will be flown on the board
of the stratospheric balloon on the altitude 20–40 km. The
measurements can be compared with satellite data. The advantage
of this method is that the same functionals are compared
– gravity gradients. The post-mission external calibration/
validation is possible more directly than through the
comparison with the ground truth gravity anomalies or geoid
undulation. The calibrating gradiometer is less sensitive, but
thanks to the altitude difference, compatible in precision with
the orbiting GOCE gradiometer. Analytical procedure of the
downward continuation is presented which permits comparison
of these observables, supported by numerical examples.
The threshold for the precision of the calibrating gradiometer
is indicated. Similar comparison can be done between
GOCE and GRACE missions. |
| |
|
| Teil von |
|
|
|
|
|
|
|