Stacking velocity functions are imported into the Velocity Estimator from an .Stab file. The file format is described in the chapter Technical Guide in the NORSAR-2D User's Guide.

If there are problems in reading the file, check the following:

  • Leading blanks are NOT allowed in the header and comment records.
  • There must be no blank records in the file.

The message in case of syntax errors may be misleading.

Here is a small, valid sample file:

tabular property-1
* MDT MPT MXR MZR MSR
0   1   1 5 1
* XPOS CDPI NSAM
1.0  231  4
* TIME VEL, NSAM pairs
0.0   2.0
1.0   2.3
1.6   3.0
2.3   3.5
* XPOS CDPI NSAM
2.0  241  6
* TIME VEL, NSAM pairs
0.0   2.0
1.0   2.3
1.5   2.9
2.4   3.4
2.8   3.7
3.1   4.1
*