GPS-only gravity field recovery with GOCE, CHAMP, and GRACE

Details GPS-only gravity field recovery with GOCE, CHAMP, and GRACE GPS-only gravity field recovery with GOCE, CHAMP, and GRACE

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011adspr..47.1020j&link_type=abstract

Advances in Space Research, Volume 47, Issue 6, p. 1020-1028.

Computer Science

Performance

3

Scientific paper

Gravity missions such as the Gravity field and steady-state Ocean Circulation Explorer (GOCE) are equipped with onboard Global Positioning System (GPS) receivers for precise orbit determination (POD), instrument time-tagging, and the extraction of the long wavelength part of the Earth’s gravity field. The very low orbital altitude of the GOCE satellite and the availability of dense 1 s GPS tracking data are ideal characteristics to exploit the contribution of GPS high-low Satellite-to-Satellite Tracking (hl-SST) to gravity field determination. We present gravity field solutions based on about 8 months of GOCE GPS hl-SST data from 2009 and compare the results with those obtained from the CHAllenging Minisatellite Payload (CHAMP) and Gravity Recovery And Climate Experiment (GRACE) missions. The very low orbital altitude of GOCE significantly improves gravity field recovery from GPS hl-SST data above degree 20, but not for the degrees below 20, where the quality of the spherical harmonic coefficients remains essentially unchanged. Despite the limited time span of GOCE data used, the gravity field of the Earth can be resolved up to about degree 115 using GPS data only. Empirically determined phase center variations (PCVs) of the GOCE onboard GPS helix antenna are, however, mandatory to achieve this performance.

Affiliated with

Also associated with

No associations

Rating

GPS-only gravity field recovery with GOCE, CHAMP, and GRACE does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with GPS-only gravity field recovery with GOCE, CHAMP, and GRACE, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GPS-only gravity field recovery with GOCE, CHAMP, and GRACE will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1183632