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The permanent tide in GPS positioning

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The treatment of the permanent tidal deformation of the Earth in GPS computation has been an almost unmentioned topic in the GPS literature. However, the ever increasing accuracy and the need to combine the GPS based coordinates with other methods requires a consistent way to handle the tides. Our survey shows that both the ITRF-xx coordinates and the GPS based coordinates are nowadays reduced to a “non-tidal” crust, conventionally defined using physically meaningless parameters. We propose to use instead the zero-crust concept which corresponds to concepts already accepted in the resolution of IAG in 1983 for gravimetric works.

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Correspondence to Markku Poutanen.

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Poutanen, M., Vermeer, M. & Mäkinen, J. The permanent tide in GPS positioning. Journal of Geodesy 70, 499–504 (1996).

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  • Unmentioned Topic
  • Tidal Deformation
  • Permanent Tide
  • Meaningless Parameter