THE EFFECT OF GEOPOTENTIAL PERTURBATIONS OF GOCE ON ITS OBSERVATIONS - A NUMERICAL STUDY
2009 (English)In: ACTA GEODAETICA ET GEOPHYSICA HUNGARICA, ISSN 1217-8977, Vol. 44, no 4, 385-398 p.Article in journal (Refereed) Published
In solution of gradiometric boundary value problem in space a regular grid of satellite gravity gradiometry data is required. This grid is considered on a sphere with radius of the mean Earth sphere and altitude of satellite. However, the gravitational gradients are measured by a gradiometer mounted on GOCE satellite and orbital perturbations of the satellite influence GOCE observations as well. In this study we present that these effects are about 2 E on GOCE data. Also numerical studies on the gravitational gradients in orbital frame show that the perturbations of co-latitude are more significant than that of inclination. The effect of perturbed inclination is less than -9 mE while the effect of perturbed co-latitude is within -173 mE in one day revolution of GOCE.
Place, publisher, year, edition, pages
2009. Vol. 44, no 4, 385-398 p.
gravitational gradients, local north oriented frame, orbital frame, satellite gravity gradiometry
Geophysics Earth and Related Environmental Sciences
IdentifiersURN: urn:nbn:se:kth:diva-32206DOI: 10.1556/AGeod.44.2009.4.2ISI: 000272763000002ScopusID: 2-s2.0-77949440568OAI: oai:DiVA.org:kth-32206DiVA: diva2:409882
QC 201104112011-04-112011-04-112011-04-11Bibliographically approved