Adding to the default velocity model database

The default velocity model database is stored in the directory $ANTELOPE/data/tables/genloc/db and has the database name vmodel.  If you have write access to these files this is the simplest way to add a new velocity model to the system.  Run dbe on the vmodel database and bring up the mod1d table.  You should get something like this:

Select the Edit->Add rows function from the top menu of dbe.  This will bring up this form:

A model you add must have a unique model name defined by the modname attribute.  Enter each of the other attributes (For more info these attribute see document on the  velocity model schema. )  Note that you can enter the values in any depth order and they will be sorted before use, but it is generally smarter to enter them in order just to avoid typographical errors.