OASES - Software for Modeling Seismo-acoustic Propagation in Horizontally Stratified Waveguides


OASES is a general purpose computer code for modeling seismo-acoustic propagation in horizontally stratified waveguides using wavenumber integration in combination with the Direct Global Matrix solution technique. It is basically an upgraded version of SAFARI, distributed by SACLANTCEN (now NURC). It has the following advantages:

  • The model provides a full wave solution for the field generated by a single source as well as for that generated by a vertical source array.
  • It allows the spatial distribution of the acoustic field to be evaluated at least one order of magnitude faster than with existing models based on the Thomson–Haskell solution technique.
  • The computational efficiency of the numerical code is demonstrated by providing exact numerical solutions for the reflectivity pattern associated with narrow ultrasonic beams incident on a fluid–solid interface near the Rayleigh angle.

The OASES Base (Export) Package can be downloaded via anonymous svn/http from the MIT LAMSS repository at http://lamss.mit.edu/lamss/pmwiki/pmwiki.php?n=Site.Oases.

Ready to Sign License Available

What type of license is right for me?

A full version of OASES includes the extension to laterally in homogeneous stratifications, 3D seismic sources, the embedded signal processing modules, etc.   As of January 1999, there is a new OASES 3-D program which is  independent software and can be run without purchasing the earlier non-gov funded OASES range dependent version.

You can license the OASES total package, OASES only, or OASES 3D only program. 

Four types of licenses are avaliable for OASES potal package:

  • Commercial License
  • License to Academic Institution (Research and Educational purpose)
  • License to US Government Contractor
  • License to US Government Agency

In addition, commercial license is avaliable for OASES only and OASES 3D only programs.


Ready to take a license?

Once you are clear as to which option is right for you, you may complete the steps  for license using one of the Ready to Sign licenses downloaded from the table below.

All licenses, including academic licenses, are between MIT and your company, university or institution, and not you (or a faculty member) individually. The license must be signed by an authorized representative at your company, university or institution.

Questions? Please e-mail software-licenses@mit.edu

Ready To Sign Licenses: 


License by Version: 
OASES Total Package
Commercial License
License to Academic Institution
License to Government Contractor*
License to Government Agency*
Commercial License
Commercial License