Overview

Summary: Software for constructing iaspei91 and ak135 travel time tables

Author: "Arthur Snoke":

Description: This package contains the necessary software for building the traveltime tables for velocity models iasp91 and ak135. The method is the one used in constructing the ak135 traveltime tables (Kennett, Engdahl, and Buland, 1995), and a Fortran compiler is required. Also included is a program (ttimes) that can be used to produce traveltimes, take-off angles, ray parameters, etc., for selected phases and specified station-event geometry using iasp91 and/or ak135. Sample output files are included. The ttimes source code (ttimes.f) can be used as a primer for learning the syntax for reading the tables.