New Seismic Un*x release from CWP

The Colorado School of Mines’ open source seismic package claims over 3000 installs worldwide.

The Center for Wave Phenomena (CWP) at the Colorado School of Mines has released a new version of its Seismic Un*x free open source seismic research and processing environment. Seismic Un*x (SU) has been installed in 62 countries and is now in its 11th year.

2GB files

SU Release 3.7 contains many bug fixes and expansions, including support for file sizes greater than 2.0 gigabytes. New codes allow for improved SEGY header manipulations, improved data file, and new velocity analysis tools.


The package contains many codes that are useful for the manipulation, filtering, modeling, and processing of exploration seismic data. The package is also useful for applications such as ground penetrating radar, and other inverse scattering imaging datasets. The package also has general applicability for other wave related research.


John Stockwell of the CWP told Oil IT Journal, “SU is a free, ‘instant’ seismic research and processing package for use in any Unix, or Unix-like environment. The package is open source. SU has around 3000 reported installs reported—with possibly ten times as many unreported installations.”


SU evolved from a package originally written by Einar Kjartansson in the late 1970’s while he was a graduate student at Jon Claerbout’s Stanford Exploration Project (SEP). Later, Shuki Ronen and Jack Cohen at the CWP used the Stanford work as the basis of a new package ‘SU’, which stands for both ‘Seismic Unix’ and ‘Stanford University’.


Stockwell’s involvement with the project began in 1989. Since then SU has expanded from an in-house package for expert users, to a public package that anybody could install. Following Cohen’s death in 1996, Stockwell has facilitated the expansion and continuous improvement of SU with contributions of suggestions, bug fixes, and new codes from the Seismic Unix user community. Download SU from

Click here to comment on this article

Click here to view this article in context on a desktop

© Oil IT Journal - all rights reserved.