About TTBOX

How to Quote

If you use TTBOX, please quote the following reference:

  Knapmeyer, M. (2004):
  TTBox: A MatLab Toolbox for the Computation of 1D Teleseismic
  Travel Times; Seismological Research Letters, vol. 75, No. 6, 726-733
  
Introduction

The Travel Time Toolbox (TTBOX) is a MatLab® Toolbox for computation of seismic travel times and ray paths in spherical 1D velocity models of terrestrial planets. It is written completely in the MatLab programming Language and does not make use of any precompiled FORTRAN or C or JAVA (or, in general, MEX) files.

The goal behind the development of TTBOX was to have a travel time calculation software which

An important point was the necessity to compute travel times not only for the earth but also for Moon and Mars - this requires, for example, to define the planetary radius within the model files.

TTBOX uses relatively simple algorithms - it just traces rays straight forward through a flat layered velocity model. This limits the performance, compared to the sophisticated methods developed by Buland & Chapman (1983), but it keeps the software relatively transparent and simple.

The MatLab programming language and its flexibility with data types and calling sequences allows for convenient, compact and easy-to-maintain routines.

This Documentation

This Documentation is mainly a technical reference to data structures and file formats, but also gives information on theoretical backround and, last but not least, a tutorial to the most important tasks. The help lines for the individual routines, which you can get from the MatLab Console by entering

  >>help filename
  

are also accessible from this Documentation.

It is assumed that you are familiar with MatLab.

The documentation is structured as follows:

As you may have noticed aready, this documentation usually avoids linking between pages, because hyperlinking usually brings readers out of track. Instead, links open the appropriate part of the Table of Contents in order to show where more information may be found.


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