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CVM H GTL

Philip Maechling edited this page Apr 20, 2022 · 17 revisions

CVM-H GTL

CVM-H is a cell-based velocity model with two different resultion areas. The LA Basin area is discretized at 250x250mx100m, and the background region is 1kmx1kmx500m resolution.

The are three CVM-H GTL modes, which include:

  1. Default - no GTL. The CVM-H model has limited areas with low (<500m/s) Vs values. This is the default mode.
[ucvm@66975967506b target]$ vs30_query -f /app/ucvm/conf/ucvm.conf -m cvmh < vs30pts.txt
 -118.4810    34.3120    165.039
 -118.5000    34.5000   1210.907
 -117.5000    33.5500   1424.097
 -117.5000    35.5000   1458.000
 -116.5000    34.4000   1407.656
  1. CVM-S4 GTL. Users can edit the UCVM.conf file and set a parameter (cvmh_param=USE_GTL,True). When this is set true, CVM-H will return different material properties for the top cell. The properties it returns are based on data extracted from the CVM-S4 model, which has more detailed GTL information.
[ucvm@66975967506b target]$ vi /app/ucvm/conf/ucvm.conf
[ucvm@66975967506b target]$ vs30_query -f /app/ucvm/conf/ucvm.conf -m cvmh < vs30pts.txt
 -118.4810    34.3120    174.363
 -118.5000    34.5000    404.900
 -117.5000    33.5500    318.913
 -117.5000    35.5000    201.797
 -116.5000    34.4000    232.947
  1. Ely/Jordan : Ely - Users can
  2. Ely/Jordan : Linear -
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