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Regional Models

Ukraine and Moldova (UQG2012)


  Authors: A.N. Marchenko, et al.     Created: 2012    Resp: A.N. Marchenko  
      Status: PRIVATE    
Description:
The UQG2012 quasi-geoid model is a hybrid solution for the Ukraine and Moldova. It was derived from the same gravity dataset used for the computation of the UQG2011 gravimetric model with the addition of 4070 GPS-levelling quasi-geoid heights. The reference global geopotential model was EGM2008 global model up to degree and order 720, and the terrain reductions were based on the 3''x3'' digital terrain model SRTM3. Like UQG2011, the solution is based on the application of the collocation method with regularization in the framework of a remore-restore procedure. The final model, with a grid resolution of 2'x3', represents the geoidal heights above the GRS80 ellipsoid in the Baltic 1977 system. The comparison of the UQG2012 model with independent GPS/levelling control points shows a good agreement with an error standard deviation smaller than 4 cm.

References:
A.N. Marchenko, O.V. Kucher, D.A. Marchenko (2015). Regional quasigeoid solutions for the Ukraine area. Geodynamics, 2(16), pp. 7-14.


Ukraine and Moldovia