Test Cases GTL

Show that CVM-S4.26 configuration file flag defaults to no GTL.

Standard use of CVM-S4.26 is accessing the tomography model without modification. Query the CVM-S2.26 model and confirm that no Vs values below about 800m/s.

First, set the model/cvms5/data/config file GTL flag to off:

# UTM Zone
utm_zone = 11

# Model directory
model_dir = s5

# GTL on or off?
gtl = off

# Number of cells in x, y, and z.
nx = 1536
ny = 992
nz = 100

We use plot_cross_section, and slice through the LA Basin CVM-S4.26 coverage area, and confirm that the returned Vs values have no values within the GTL region in the top 350m

-bash-4.2$ ./plot_cross_section.py -b 34.0,-118.0 -u 34.5,-117.5 -h 100 -v 10 -d vs -c cvms5 -a s -s 0 -e 500
Using parameters:

lat1 = 34.0
data_type = vs
lat2 = 34.5
cvm_selected = cvms5
ending_depth = 500
horizontal_spacing = 100
color = s
lon1 = -118.0
vertical_spacing = 10
lon2 = -117.5
starting_depth = 0

Retrieving data. Please wait...

• CVM-S4.26 with gtl=off

We also check the return values in the ucvm combined data column to determine whether the gtl values are shown as native model values, or as combined gtl values.

• [CVM-S4.26 Input File] (http://hypocenter.usc.edu/research/ucvmc/cvm_4_26/ucvm_socal_test_pts.txt)
• [CVM-S4.26 with gtl=off] (http://hypocenter.usc.edu/research/ucvmc/cvm_4_26/cvms5_gtl_off_res.txt)

Show that CVM-S4.26 model can add a GTL by setting a configuration flag.

We use plot_cross_section.py to show GTL values from CVM-S4.26

-bash-4.2$ ./plot_cross_section.py -b 34.0,-118.0 -u 34.5,-117.5 -h 100 -v 10 -d vs -c cvms5 -a s -s 0 -e 500
Using parameters:

lat1 = 34.0
data_type = vs
lat2 = 34.5
cvm_selected = cvms5
ending_depth = 500
horizontal_spacing = 100
color = s
lon1 = -118.0
vertical_spacing = 10
lon2 = -117.5
starting_depth = 0

Retrieving data. Please wait...

• CVM-S4.26 with gtl=0

Verify that the gtl=on flag returns the GTL as native model, and does not appear in the combined column.

• [CVM-S4.26 with gtl=on] (http://hypocenter.usc.edu/research/ucvmc/cvm_4_26/cvms5_gtl_on_res.txt)

Show that UCVM can add an external GTL to the CVM-S4.26 model.

The CVM-S4.26 model can add the Ely-Jordan GTL as an external modification.

-bash-4.2$ ./bin/ucvm_query -f ./conf/ucvm.conf -m cvms5,elygtl:ely -z 0,350 < ucvm_socal_test_pts.txt > cvms5_elygtl_res.txt

• CVM-S4.26 with external GTL added

Show that the CVM-H model with added GTL (not the ucvm.conf USE_GTL flag) impacts the combined data column.

When UCVM adds an external GTL to the CVM-H model, the combined_data columns return the results.

-bash-4.2$ ./bin/ucvm_query -f ./conf/ucvm.conf -m cvms5,elygtl:ely -z 0,350 < ucvm_socal_test_pts.txt > cvms5_elygtl_res.txt

• CVM-H with external GTL added

Show that the ucvm_query add GTL flag with CVM-H produces results equivalent to CVM-H USE_GTL flag

Query CVM-H with USE_GTL flag. Query it again adding external GTL. Show final results are identical.

-bash-4.2$ ./bin/ucvm_query -f ./conf/ucvm.conf -m cvmh,elygtl:ely -z 0,350 < ucvm_socal_test_pts.txt > cvmh_elygtl_res.txt
Using Geo Depth coordinates as default mode.

• CVM-H with external GTL added

-bash-4.2$ ./bin/ucvm_query -f ./conf/ucvm.conf -m cvmh < ucvm_socal_test_pts.txt > cvmh_gtl_true_res.txt
Using Geo Depth coordinates as default mode.

• CVM-H with external GTL added