Offshore Southern California Velocity Structure

To improve the Southern California Velocity Models in SCEC's UCVM, we are working on adding a model described in this paper:

Reference Publication

• Offshore Southern California lithospheric velocity structure from noise cross-correlation functions
• D. C. Bowden1, M. D. Kohler2, V. C. Tsai1, and D. S. Weeraratne
• JGR RESEARCH ARTICLE - DOI: 10.1002/2016JB012919
• AGU Publication of Model Description

SCEC Models

• CVM Web Community Velocity Model Viewer
• GFM Web Geological Framework Model Viewer
• CFM Web Community Fault Model Viewer
• UCVM Software Wiki UCVM Github Wiki

Standard Velocity Model Questions

• Model for a flat region or topography?
• Default projection for model
• Model dimensions and resolution
• Material properties in model (standard are vp, vs, and density)
• Any special considerations for geotechnical layer (top 350m or so?). Related, what is the minimum Vs in the model.
• Preferred formulas for populating vp and density if the model is vs only
• Where to get the existing data files
• Review the ucvm interpolation method (trilinear interpolation)
• Thoughts on how we confirm it has been integrated into ucvm correctly

Related Entries

• UCVM
• CVM-H
• CVM-S