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The Elusive Stationary Geoid

  • Martin Vermeer
Part of the Space Sciences Series of ISSI book series (SSSI, volume 17)

Abstract

We discuss the various problems occurring when trying to fix a geoid or geopotential model using sea level observations sampled during a limited time span from a bounded geographical domain. Such problems arc on the one hand aliasing and spectral leakage, and on the other, the non-conservation of matter over only part of the world ocean.

In the light of these issues we discuss whether it is sensible to include in a definition of the global geoid the radially symmetric part of either the mean sea level field itself, or its linear or nonlinear time dependence, arriving at a negative conclusion.

Keywords

Stationary geoid mean sea level aliasing spectral leakage. 

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References

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Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Martin Vermeer
    • 1
    • 2
  1. 1.Institute of Geodesy, Department of SurveyingHelsinki University of TechnologyFinland
  2. 2.Institute of Geodesy, Department of SurveyingHelsinki University of Technology HUTFinland

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