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.
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An average velocity cube is a 3D raster volume which holds the average velocity at the cube nodes. The cube may be generated in Geocap, or it may be imported from other software. Such a cube is used as input for the Average Velocity cube velocity model. You may also specify a seabed surface and a water velocity which will be used above the seabed surface. The cube will be used to look up velocities below the seabed surface.
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- Right click the velocity model
- Select Velocity Model Depth Convert, and the command editor will appear.
- Browse inn in the data you want to depth convert into the Input field.
- select Select a folder for the output
- click executeClick Execute.
The command can be used to depth convert many different datatypes in Geocap, including
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