GPS-only gravity field determination from GOCE data

Bock, Heike; Jäggi, Adrian; Meyer, Ulrich; Beutler, Gerhard; van den IJssel, Jose (2013). GPS-only gravity field determination from GOCE data (Unpublished). In: IAG Scientific Assembly 2013. Potsdam, Germany. 01.-06.09.2013.

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The Gravity field and steady-state Ocean Circulation Explorer (GOCE) is now in orbit for more than four years. This is longer than the originally planned lifetime of the satellite and after three years on the same altitude the satellite has been lowered to 235 km in several steps. In the frame of the GOCE High-level Processing Facility the Astronomical Institute of the University of Bern (AIUB) is responsible for the determination of the official Precise Science Orbit (PSO) product. Kinematic GOCE orbits are part of this product and are used by several institutions in- and outside the HPF for determining the low degrees of the Earth’s gravity field. AIUB GOCE GPS-only gravity field solutions using the Celestial Mechanics Approach and covering the Release 4 period as well as a more recent time interval at the lower orbit altitude are shown and discussed. Special attention is paid to the impact of systematic deficiencies in the kinematic orbits on the resulting gravity fields, e.g., related to the geomagnetic equator, and on possibilities to get rid of them.

Item Type:

Conference or Workshop Item (Speech)

Division/Institute:

08 Faculty of Science > Institute of Astronomy

UniBE Contributor:

Bock, Heike; Jäggi, Adrian; Meyer, Ulrich and Beutler, Gerhard

Subjects:

500 Science > 520 Astronomy

Language:

English

Submitter:

Pierre Fridez

Date Deposited:

04 Jul 2014 14:43

Last Modified:

05 Apr 2017 15:54

BORIS DOI:

10.7892/boris.44075

URI:

https://boris.unibe.ch/id/eprint/44075

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