If the default parameter settings are insufficient they may be altered in the parameter include file
$OASES_ROOT/src/compar.fThe controling parameters are
| Parameter | Description | Default | 
| NLA | Max number of layers | 200 | 
| NPEXP | Max number of wavenumber and time | |
| samples is | 16 | |
| NRD | Max number of receiver depths | 101 |