The VMOD array is a simple means to represent a seismic layer structure stored in a .nd file. The VMOD array does not allow to store discontinuity name information.
The VMOD type is merely a historical artefact, but may be useful when converting machine generated models (or models from other sources) into model structures and .nd files.
Field | Type | Units | Description |
---|---|---|---|
vmod[:,1] | numeric array | km | specifies the depth of the upper boundaries of all layers in model. vmod[1,1] is the top of the uppermost layer. |
vmod[:,2] | numeric array | km/s | P wave velocities at depths specified in vmod[:,1]. |
vmod[:,3] | numeric array | km/s | S wave velocities at depths specified in vmod[:,1]. |
vmod[:,4] | numeric array | g/cm3 | Density at depths specified in vmod[:,1]. |
vmod[:,5] | numeric array | dimensionless | P wave quality factor at depth specified in vmod[:,1]. |
vmod[:,6] | numeric array | dimensionless | S wave quality factor at depth specified in vmod[:,1]. |