The first three lines of this block defines the computational grid over which the replica sources will be placed. The sampling is equidistant in all 3 coordinate directions. Note the the depths Zshould be specified in meters whereas the ranges x and y should be specified in kilometers.
The wavenumber sampling parameters for the replica sources should follow in the standard OASES format. In Version 2.2 automatic sampling is supported, and activated by NW=-1. In this case IC1 and IC2 are insignificant. As is the case for automatic sampling in all OASES modules, the desired phase velocity interval must be specified manually. The kernel tapering invoked by the automatic sampling will be initiated at the specified phase velocities.