Use the NORSAR-2D Model Scanner:
NORSAR-2D Console: File->Export->Model Scanner...
You select a velocity type and grid-geometry and store the result as file <fileName>.Sgrd under the modelling section directory.
There are two FORTRAN subroutines in the NORSAR-2D installation that can read this format:
- smgarw.f - Reads velocity grid into a 1D array.
- smmsrw.f - Reads velocity grid into a 2D array.
The source code for these functions are stored in <N2D installation>/aux/source/