vs30_query - SCECcode/ucvm GitHub Wiki

This program will query the top 30 meters of a velocity model and return a vs30 value calculated from slowness.

Usage: vs30_query [-h] [-m models] [-f config] [-i inter]
where: -h This help message 
-f Configuration file. Default is ./ucvm.conf. 
-i Interval between query points along z-axis (m, default is 1) 
-m Comma delimited list of crustal/GTL models to query in order

Example of query uses this input file:

-bash-4.2$ more test_latlonsonly.txt
-118.0 34.0
-118.5 34.5
-119.0 33.0
-120.0 33.0

The follow calls show return values from different CVMs.

Model CVM-H with no gtl

-bash-4.2$ ./bin/vs30_query -f ./conf/ucvm.conf -m cvmh < test_latlonsonly.txt
 -118.0000    34.0000    969.300
 -118.5000    34.5000   2381.450
 -119.0000    33.0000   3087.574
 -120.0000    33.0000   3035.540

Model CVM-S4 with gtl

-bash-4.2$ ./bin/vs30_query -f ./conf/ucvm.conf -m cvms < test_latlonsonly.txt
 -118.0000    34.0000    350.963
 -118.5000    34.5000    446.394
 -119.0000    33.0000   2886.751
 -120.0000    33.0000   2886.751

Model CVM-S4.26 with no gtl

-bash-4.2$ ./bin/vs30_query -f ./conf/ucvm.conf -m cvms5 < test_latlonsonly.txt
 -118.0000    34.0000    925.255
 -118.5000    34.5000   1131.339
 -119.0000    33.0000   2860.827
 -120.0000    33.0000      0.000

Model CVM-S4.26 with 1D background model

-bash-4.2$ ./bin/vs30_query -f ./conf/ucvm.conf -m cvms5,1d < test_latlonsonly.txt
 -118.0000    34.0000    925.255
 -118.5000    34.5000   1131.339
 -119.0000    33.0000   2860.827
 -120.0000    33.0000   2886.751

Model CVM-S4.26.M01 with gtl

-bash-4.2$ ./bin/vs30_query -f ./conf/ucvm.conf -m cvmsi < test_latlonsonly.txt
 -118.0000    34.0000    350.963
 -118.5000    34.5000    490.469
 -119.0000    33.0000   2809.372
 -120.0000    33.0000   2886.751