Advertisement

Effect of geopotential model errors on the projection of GOCE gradiometer observables

  • Gy. TóthEmail author
  • L. Földváry
Conference paper
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 129)

Abstract

The forthcoming GOCE mission will provide gravity gradient observations along its orbit at varying altitude. It is necessary for certain data processing strategies to project the GOCE gravity gradients to a mean reference sphere. In the present simulation study the radial distance of the projection is in the order of 10 km, and can be done using the Taylor expansion of the gravity gradients.

In this paper we present an error analysis of such a projection. The omission of higher-order terms of the Taylor expansion and commission errors of the geopotential model are discussed.

The paper presents an error analysis study based on simulated GOCE gradiometry. The results are validated with stringent accuracy requirements of the GOCE mission.

Keywords

gravity gradient tensor geopotential model space gradiometry projection error 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bouman, J, Koop, R (2003). Error assessment of GOCE SGG data using along track interpolation. Advances in Geosciences, No. 1, pp 27–32.CrossRefGoogle Scholar
  2. Cesare, S. (2002) Performance requirements and budgets for the gradiometric mission. Technical Note, GOC-TN-AI-0027, Alenia Spazio, Turin, Italy.Google Scholar
  3. Colombo, O (1986). Notes on the mapping of the gravity field using satellite data. In: Sünkel H (ed) Mathematical and numerical techniques in physical geodesy. Lecture Notes in Earth Sciences, Vol 7. Springer, Berlin Heidelberg New York, pp 260–316.Google Scholar
  4. Floberhagen, R, Demond, F-J, Emanuelli, P, Muzi, D, Popescu, A (2004). Development status of the GOCE programme. Paper presented at the 2nd GOCE User Workshop, ESA ESRTN, 8–10. March, 2004, Italy. Available at http://earth.esa.int/goce04.Google Scholar
  5. Haagmans, R, Prijatna, K, Omang, O (2003). An Alternative Concept for Validation of GOCE Gradiometry Results Based on Regional Gravity. 3rd Meeting of the IGGC, Tziavos (ed.), Gravity and Geoid 2002, pp 281–286.Google Scholar
  6. Koop, R (1993). Global gravity field modeling using satellite gravity gradiometry. Publ. Geodesy, New Series, No. 38. Netherlands Geodetic Commission, Delft.Google Scholar
  7. Müller, J (2003). GOCE gradients in various reference frames and their accuracies. Advances in Geosciences, No. l, pp 33–38.Google Scholar
  8. Rummel, R, van Gelderen, M, Koop, R, Schrama, E, Sansò, F, Brovelli, M, Miggliaccio, F, Sacerdote, F (1993). Spherical harmonic analysis of satellite gradiometry. Publ. Geodesy, New Series, No. 39. Netherlands Geodetic Commission, Delft.Google Scholar
  9. Rummel, R. (1997). Spherical Spectral Properties of the Earth’s Gravitational Potential and ist First and Second Derivatives. In: Geodetic Boundary Value Problems in View of the One Centimeter Geoid. Eds.: F. Sanso, R. Rummel, Lecture Notes Earth Sciences, 65, 359–404, Springer.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  1. 1.Department of Geodesy and Surveying and Physical Geodesy and Geodynamics Research Group of BUTE-HASBudapest University of Technology and EconomicsBudapestHungary
  2. 2.Institute of Astronomical and Physical GeodesyTechnical University of MunichMünchenGermany

Personalised recommendations