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Philip Maechling edited this page May 4, 2022 · 23 revisions

GTL Configurations

There are multiple GTL settings within ucvm, and the behavior of various combinations is not obvious. The following plots show the impact of various plotting configurations.

CVM-H, UCVM.conf CVM-H GTL,false

[ucvm@ac3e0e643150 target]$ ucvm_query -f /app/ucvm/conf/ucvm.conf -m cvmh < querypts.txt
Using Geo Depth coordinates as default mode.
 -118.4810    34.3120    100.000    386.051    397.973       cvmh   1946.508    505.610   1880.905       none      0.000      0.000      0.000      crust   1946.508    505.610   1880.905
 -118.5000    34.5000    100.000    573.044    527.718       cvmh   3994.835   2271.410   2392.620       none      0.000      0.000      0.000      crust   3994.835   2271.410   2392.620
 -117.5000    33.5500    100.000    381.905    518.900       cvmh   5087.308   2795.410   2548.363       none      0.000      0.000      0.000      crust   5087.308   2795.410   2548.363
 -117.5000    35.5000    100.000    721.905    394.017       cvmh   4855.963   2866.868   2513.006       none      0.000      0.000      0.000      crust   4855.963   2866.868   2513.006
 -116.5000    34.4000    100.000    791.036    293.500       cvmh   4730.289   2751.258   2494.663       none      0.000      0.000      0.000      crust   4730.289   2751.258   2494.663

CVM-H UCVM.conf CVM-H GTL,false, elygtl:ely -z 0,350

[ucvm@ac3e0e643150 target]$ ucvm_query -f /app/ucvm/conf/ucvm.conf -m cvmh,elygtl:ely -z 0,350 < querypts.txt
Using Geo Depth coordinates as default mode.
 -118.4810    34.3120    100.000    386.051    397.973       cvmh   2139.914    672.340   1965.082     elygtl      0.000    397.973      0.000        ely   2226.984    600.934   1999.243
 -118.5000    34.5000    100.000    573.044    527.718       cvmh   4398.315   2524.129   2448.169     elygtl      0.000    527.718      0.000        ely   3334.547   1485.425   2289.937
 -117.5000    33.5500    100.000    381.905    518.900       cvmh   5074.826   2788.256   2546.395     elygtl      0.000    518.900      0.000        ely   3609.738   1589.793   2335.911
 -117.5000    35.5000    100.000    721.905    394.017       cvmh   4860.199   2866.500   2513.634     elygtl      0.000    394.017      0.000        ely   3369.378   1523.207   2296.108
 -116.5000    34.4000    100.000    791.036    293.500       cvmh   4713.636   2738.400   2492.270     elygtl      0.000    293.500      0.000        ely   3177.536   1389.021   2260.583

CVM-H UCVM.conf CVM-H GTL,false, elygtl:linear -z 0,350

[ucvm@ac3e0e643150 target]$ ucvm_query -f /app/ucvm/conf/ucvm.conf -m cvmh,elygtl:linear -z 0,350 < querypts.txt
Using Geo Depth coordinates as default mode.
 -118.4810    34.3120    100.000    386.051    397.973       cvmh   2139.914    672.340   1965.082     elygtl      0.000    397.973      0.000     linear      0.000      0.000      0.000
 -118.5000    34.5000    100.000    573.044    527.718       cvmh   4398.315   2524.129   2448.169     elygtl      0.000    527.718      0.000     linear      0.000      0.000      0.000
 -117.5000    33.5500    100.000    381.905    518.900       cvmh   5074.826   2788.256   2546.395     elygtl      0.000    518.900      0.000     linear      0.000      0.000      0.000
 -117.5000    35.5000    100.000    721.905    394.017       cvmh   4860.199   2866.500   2513.634     elygtl      0.000    394.017      0.000     linear      0.000      0.000      0.000
 -116.5000    34.4000    100.000    791.036    293.500       cvmh   4713.636   2738.400   2492.270     elygtl      0.000    293.500      0.000     linear      0.000      0.000      0.000

CVM-H, UCVM.conf CVM-H GTL,true

[ucvm@ac3e0e643150 target]$ ucvm_query -f /app/ucvm/conf/ucvm.conf -m cvmh < querypts.txt
Using Geo Depth coordinates as default mode.
 -118.4810    34.3120    100.000    386.051    397.973       cvmh   2164.931    561.880   1975.122       none      0.000      0.000      0.000      crust   2164.931    561.880   1975.122
 -118.5000    34.5000    100.000    573.044    527.718       cvmh   3571.999   1661.088   2329.946       none      0.000      0.000      0.000      crust   3571.999   1661.088   2329.946
 -117.5000    33.5500    100.000    381.905    518.900       cvmh   3633.909   1606.619   2339.684       none      0.000      0.000      0.000      crust   3633.909   1606.619   2339.684
 -117.5000    35.5000    100.000    721.905    394.017       cvmh   3221.180   1432.285   2269.012       none      0.000      0.000      0.000      crust   3221.180   1432.285   2269.012
 -116.5000    34.4000    100.000    791.036    293.500       cvmh   3256.877   1437.267   2275.747       none      0.000      0.000      0.000      crust   3256.877   1437.267   2275.747

CVM-H UCVM.conf CVM-H GTL,true elygtl:ely -z 0,350

[ucvm@ac3e0e643150 target]$ ucvm_query -f /app/ucvm/conf/ucvm.conf -m cvmh,elygtl:ely -z 0,350 < querypts.txt
Using Geo Depth coordinates as default mode.
 -118.4810    34.3120    100.000    386.051    397.973       cvmh   2139.914    672.340   1965.082     elygtl      0.000    397.973      0.000        ely   2226.984    600.934   1999.243
 -118.5000    34.5000    100.000    573.044    527.718       cvmh   4398.315   2524.129   2448.169     elygtl      0.000    527.718      0.000        ely   3334.547   1485.425   2289.937
 -117.5000    33.5500    100.000    381.905    518.900       cvmh   5074.826   2788.256   2546.395     elygtl      0.000    518.900      0.000        ely   3609.738   1589.793   2335.911
 -117.5000    35.5000    100.000    721.905    394.017       cvmh   4860.199   2866.500   2513.634     elygtl      0.000    394.017      0.000        ely   3369.378   1523.207   2296.108
 -116.5000    34.4000    100.000    791.036    293.500       cvmh   4713.636   2738.400   2492.270     elygtl      0.000    293.500      0.000        ely   3177.536   1389.021   2260.583

CVM-H UCVM.conf CVM-H GTL,true elygtl:linear -z 0,350

[ucvm@ac3e0e643150 target]$ ucvm_query -f /app/ucvm/conf/ucvm.conf -m cvmh,elygtl:linear -z 0,350 < querypts.txt
Using Geo Depth coordinates as default mode.
 -118.4810    34.3120    100.000    386.051    397.973       cvmh   2139.914    672.340   1965.082     elygtl      0.000    397.973      0.000     linear      0.000      0.000      0.000
 -118.5000    34.5000    100.000    573.044    527.718       cvmh   4398.315   2524.129   2448.169     elygtl      0.000    527.718      0.000     linear      0.000      0.000      0.000
 -117.5000    33.5500    100.000    381.905    518.900       cvmh   5074.826   2788.256   2546.395     elygtl      0.000    518.900      0.000     linear      0.000      0.000      0.000
 -117.5000    35.5000    100.000    721.905    394.017       cvmh   4860.199   2866.500   2513.634     elygtl      0.000    394.017      0.000     linear      0.000      0.000      0.000
 -116.5000    34.4000    100.000    791.036    293.500       cvmh   4713.636   2738.400   2492.270     elygtl      0.000    293.500      0.000     linear      0.000      0.000      0.000

Examples Effect of Ely/Jordan GTL in vs30queries

[ucvm@28d7188735e6 target]$ vs30_query -f /app/ucvm/conf/ucvm.conf -m cvms5 < vs30pts.txt
 -118.4810    34.3120    479.035
 -118.5000    34.5000    542.880
 -117.5000    33.5500   1488.633
 -117.5000    35.5000   1301.073
 -116.5000    34.4000   1297.697
[ucvm@28d7188735e6 target]$ vs30_query -f /app/ucvm/conf/ucvm.conf -m cvms5,elygtl:ely -z 0,350 < vs30pts.txt
 -118.4810    34.3120    209.404
 -118.5000    34.5000    276.783
 -117.5000    33.5500    313.116
 -117.5000    35.5000    246.636
 -116.5000    34.4000    200.306
[ucvm@28d7188735e6 target]$ vs30_query -f /app/ucvm/conf/ucvm.conf -m cvms5,elygtl:linear -z 0,350 < vs30pts.txt
 -118.4810    34.3120      0.000
 -118.5000    34.5000      0.000
 -117.5000    33.5500      0.000
 -117.5000    35.5000      0.000
 -116.5000    34.4000      0.000

Show that the CVM-H USE_GTL model flag in ucvm.conf has effect

The user can specify whether a geotechnical layer, based on Ely Vs30 technique is added to the top 300M of the cvm-h model, by editing a flag in the ucvm.conf file. We expect that Vs values in the top 300m will be lower for sites when the USE_GTL flag is set to true. We called ucvm_query this way:

./bin/ucvm_query -f ./conf/ucvm.conf -m cvmh -c gd < ./tests/inputs/ucvm_socal_test_pts.txt > ucvm_cvmh_depth_usegtl_false_results.txt

We ran this query without USE_GTL by setting conf/ucvm.conf file flag this way:

cvmh_param=USE_1D_BKG,False
cvmh_param=USE_GTL,False

We ran this query with USE_GTL by setting conf/ucvm.conf file flag this way:

cvmh_param=USE_1D_BKG,False
cvmh_param=USE_GTL,True

We posted the results on a SCEC Website at:

This shows the the USE_GTL flag return different material properties in the top 500m. However, the columns showing combined results (from model and GTL) are identical. This suggests that the combined properties columns change only when an external GTL is returned from the UCVM. CVM-H internal GTL does not appear as a "combined" material properties, but rather as native model properties.

Show that the CVM-H USE_1D background model flag in ucvm.conf has effect

The user can specify a CVM-H configuration flag that enables or disables use of a 1D background model. We run ucvm_query twice, for a point outside the cvm-h region, and show that the flag takes effect. The default CVM-H flag is not to use a 1D background model. We expect ucvm to return material properties for regions outside of the CVM-H region when the 1D background model is true.

We called ucvm_query this way:

./bin/ucvm_query -f ./conf/ucvm.conf -m cvmh -c gd < ./tests/inputs/ucvm_socal_test_pts.txt > ucvm_cvmh_depth_1dtrue_results.txt

We ran this query without 1D bkg by setting conf/ucvm.conf file flag this way:

cvmh_param=USE_1D_BKG,False
cvmh_param=USE_GTL,False

We ran this query with 1D bkg by setting conf/ucvm.conf file flag this way:

cvmh_param=USE_1D_BKG,True
cvmh_param=USE_GTL,False

We posted the results on a SCEC Website at:

Shield: CC BY 4.0

This work is licensed under a Creative Commons Attribution 4.0 International License.

CC BY 4.0

UCVM Documentation

  1. Introduction
  2. Overview and Installation
  3. Registered CVMs
    1. Model-Specific-Notes
  4. UCVM Configuration File
  5. Basic UCVM Commands
    1. Query by Elevation or Depth
    2. Ely/Jordan GTL
    3. Plotting Scripts
  6. List of Commands
    1. Manual Pages
    2. Executables
    3. Scripts
    4. Examples
  7. Tutorials
    1. ucvm_query
    2. makegrid.sh
    3. Make-Grid
    4. Adding GTL
    5. Basin-Query
    6. ucvm2mesh
    7. vs30_query
  8. UCVM-Docker
    1. Using-UCVM-Docker
  9. References
    1. UCVM Query Parameters
    2. Model Specific Query Behavior
    3. Model Specific GTLs
    4. System-specific Builds
    5. Model References
  10. Testing
    1. GTL-Testing
      1. CVM-H GTLs
      2. CVM-S5 GTLs
      3. CVM-S4 GTLs
      4. CVMSI GTLs
      5. CCA GTLs
      6. 1D GTLs
      7. BBP1D GTLs
    2. Other CVM-H-Tests
  11. Concepts
    1. GitHub Branches
    2. Vs30 Info
    3. UCVM Plotting
    4. C-API
    5. FORTRAN-API
    6. Projections
  12. Earlier Documentation
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