Seismic data is used to visualize the Earth's sub surface. This is achieved by measuring travel times of reflections from pressure waves propagating through the ground. Seismic data and interpretations of seismic data will therefore often have z values in travel time, not depth. In order to get a depth value for a travel time value, we need to do a depth conversion. A depth conversion combines the velocity of the pressure wave with the travel time to get a depth value.
Data sets may be depth converted in Geocap using the command "Velocity Model Depth Convert". This command uses a "Velocity Model" as input in order to determine the velocity of a the pressure wave.
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A velocity model is stored as an item in your Projectproject. It represents the seismic velocities in an area , and is used as input to the "Velocity Model Depth Convert" command.
To create a new velocity model
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