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Regional Models

Auvergne - France (AuvGeoid2019)


  Authors: I. Foroughi, et al.     Created: 2019    Resp: J. Janák  
      Status: PUBLIC    
Description:
The AuvGeoid2019 model is a gravimetric geoid computed for the Auvergne test area by using the UNB Stokes-Helmert's technique. The main difference with respect to the AuvGeoid2017 model is that both scattered and grid gravity anomalies at the Earth’s surface are now continued down to mean gravity anomalies at the geoid level using the least-squares downward continuation (LS DWC) approach; they are then used to evaluate the Stokes integral. The comparison of the obtained geoidal heights with those derived from 75 GNSS/levelling control points (regularly spaced throughout the region) shows a misfit of 3.3 cm in standard deviation.

Reference:
I. Foroughi, P. Vaníček, R.W. Kingdon, M. Goli, M. Sheng, Y. Afrasteh, P. Novák, & M.C. Santos (2019). Sub-centimetre geoid. Journal of Geodesy, 93, pp. 849-868. DOI: 10.1007/s00190-018-1208-1

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