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Estimation Models of Geoid in Nigeria Using Doppler Satellite Observations

  • Conference paper
Determination of the Geoid

Part of the book series: International Association of Geodesy Symposia ((IAG SYMPOSIA,volume 106))

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Abstract

Doppler satellite observations at fourteen stations in the Nigerian geodetic network have been utilized in the geoid estimation. By comparing the geodetic heights of these points on both geocentric (WGS 72) and Minna (Nigerian) datums, and their orthometric heights, geoidal undulations with respect to the two datums were computed. Contour maps of geoidal undulations predicted at regular grid intervals, using finite element estimation technique show that the geoid tilts more on Minna datum than on the geocentric datum. However, due to data problems, optimum geoid solution has not been achieved.

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References

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Author information

Authors and Affiliations

  1. Department of Surveying, University of Lagos, Lagos, Nigeria

    C. U. Ezeigbo

Authors
  1. C. U. Ezeigbo
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Editor information

Editors and Affiliations

  1. Department of Geodetic Science & Surveying, The Ohio State University, Columbus, OH, 43210-1247, USA

    Richard H. Rapp

  2. Instituto di Topografia, Fotogrammetria e Geofisica, Politecnico di Milano, I-Milano, 20133, Italy

    Fernando Sansò

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© 1991 Springer-Verlag New York Inc.

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Ezeigbo, C.U. (1991). Estimation Models of Geoid in Nigeria Using Doppler Satellite Observations. In: Rapp, R.H., Sansò, F. (eds) Determination of the Geoid. International Association of Geodesy Symposia, vol 106. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-3104-2_28

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  • DOI: https://doi.org/10.1007/978-1-4612-3104-2_28

  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-0-387-97470-5

  • Online ISBN: 978-1-4612-3104-2

  • eBook Packages: Springer Book Archive

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