Figure 3
Depth of investigation (DOI) and vertical sections of the 3-D density model obtained with model regularization in terms of an isotropic roughness and damping constraints around 2200 kg m−3: (a) DOI for the west-east section at a latitude of 4519050 m and (b) the south-north section at a longitude of 451580 m; (c,d) corresponding density models. In (c,d), the DOI values are used to provide a qualitative (using transparency) assessment of how the model resolution decreases with depth. These sections also highlight how the inversion grid cells adapt to conform to the topography of the land surface at a resolution of 5 m. The locations of the two transects are highlighted in Fig. 1. The vertical sections were created using Matlab (version R2013b; www.mathworks.com).
