Testing Parameters

The following are the parameters that the current CyberShake workflow uses. We'd like to use similar parameters for an AWP-ODC CyberShake workflow and would expect to get similar results.

Site USC

Grid box

• 420 km x 620 km x 40 km deep
• 200 m spacing
• Box rotated -55 degrees
• Corner coordinates:

 x=0, y=0: (34.5491, -122.11248)

 x=420, y=0: (37.696, -119.54488)

 x=420, y=620: (34.444, -113.95284)

 x=0, y=620: (31.41553, -116.62562)

Velocity mesh

• CVM-4
• VpMax = 16.7

km/s

• VsMax = 13.9

• RhoMax = 12.9
• VpMin = 1.7

• VsMin = 0.5

• RhoMin = 1.7

Velocity files were checked for poisson ratio (ask Rob for more details).

SGT calculation

• nt = 8000

• dt = 0.01

• qsfrac=50

• qpfrac=100

• qpqsfactor = 2.0

• fmax = 25.0, fmin = 0.01

• flo = 0.5, fhi = 0.0

There are other parameters, but I'm not sure which are Rob-specific and which aren't