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Geocenter Variations from Analysis of SLR Data

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Reference Frames for Applications in Geosciences

Part of the book series: International Association of Geodesy Symposia ((IAG SYMPOSIA,volume 138))

Abstract

The Earth’s center of mass (CM) is defined in the satellite orbit dynamics as the center of mass of the entire Earth system, including the solid earth, oceans, cryosphere and atmosphere. Satellite Laser Ranging (SLR) provides accurate and unambiguous range measurements to geodetic satellites to determine variations in the vector from the origin of the ITRF to the CM. Estimates of the Global mass redistribution induced geocenter variations at seasonal scales from SLR are in good agreement with the results from the global inversion from the displacements of the dense network of GPS sites and from ocean bottom pressure model and GRACE-derived geoid changes.

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Acknowledgments

This research was supported by NASA grants NNX08AE99E and JPL1368074.

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Authors and Affiliations

  1. Center for Space Research, University of Texas at Austin, Austin, TX, 78759-5321, USA

    M. K. Cheng, J. C. Ries & B. D. Tapley

Authors
  1. M. K. Cheng
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  2. J. C. Ries
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  3. B. D. Tapley
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Corresponding author

Correspondence to M. K. Cheng .

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Editors and Affiliations

  1. Géographique et Forestière (IGN), Laboratoire de recherche en géodésie (LA, Institut National de l'Information, rue Hélène Brion 35, Paris, 75013, France

    Zuheir Altamimi

  2. Géographique et Forestière (IGN), Laboratoire de Recherche en Géodésie (LA, Institut National de l'Information, rue Hélène Brion 35, Paris, 75013, France

    Xavier Collilieux

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Cheng, M.K., Ries, J.C., Tapley, B.D. (2013). Geocenter Variations from Analysis of SLR Data. In: Altamimi, Z., Collilieux, X. (eds) Reference Frames for Applications in Geosciences. International Association of Geodesy Symposia, vol 138. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32998-2_4

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