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  1. No Access

    Chapter and Conference Paper

    Local Gravity Field Modelling in Rugged Terrain Using Spherical Radial Basis Functions: Case Study for the Canadian Rocky Mountains

    We analyze the performance of a least-squares approximation of the gravity field using Spherical Radial Basis Functions (SRBFs) in rugged mountains. The numerical experiment is conducted for the gravity distur...

    R. Tenzer, R. Klees, T. Wittwer in Geodesy for Planet Earth (2012)

  2. No Access

    Chapter and Conference Paper

    Comparison of Regional and Global GRACE Gravity Field Models at High Latitudes

    In this study we address the question of whether regional gravity field modeling techniques of GRACE data can offer improved resolution over traditional global spherical harmonic solutions. Earlier studies int...

    B. C. Gunter, T. Wittwer, W. Stolk, R. Klees, P. Ditmar in Geodesy for Planet Earth (2012)

  3. No Access

    Chapter and Conference Paper

    Comparison of Techniques for the Computation of a Height Reference Surface from Gravity and GPS-Levelling Data

    Three different techniques for quasigeoid modelling from gravity and GPS-levelling data are compared: (i) a penalized least-squares technique using spherical radial basis functions provides a gravimetric quasi...

    R Tenzer, R Klees, I Prutkin, T Wittwer, B Alberts… in Observing our Changing Earth (2009)