Generic Grid Generator (GGG)

Los Alamos Software Release LACC 03-020


In order to simplify the process of creating and generating grids for ocean models, we developed the Generic Grid Generator for generating dipole and tripole grids and editing the topography as necessary. The tool has a graphical user interface to enable a point-and-click editing of the topography. More details can be gleaned from the documentation. The software is currently only supported on a volunteer basis (the developer retired), so response times will vary.

Current Release

ed John Davis has now created a version 3 release of GGG. (The previous release can still be downloaded and used by grabbing the tarfile gCubedV2.0.tar.gz that is in the attachment section below.) Preferably, if you have subversion installed, you should check out a copy directly from our subversion repository:

This is the only way currently to get the new common-source Mac OS X version with updated documentation. A tar ball for version 3 will be available soon.

In addition to the code in the distribution, you'll need a slightly modified version of the ETOPO2 dataset. You can currently get this from:


See the GggUsersGuide for more information on the package and how to use it.

Bug Reports

Normally, you would enter your own bug reports using the tabs above. However, due to some trac spammers/hackers out there, we currently need to enter those bug reports for you. Until we get some filters installed, please send bug reports as an email to Phil Jones (pwjones at lanl dot gov) or John Davis (jfd5041 at sbcglobal dot net). If you don't see a report entered promptly, just keep pestering us.

The Gcubed package is freely available as Los Alamos Computer Code LACC-03-020 and is covered under the following copyright agreement.

This program was prepared by the Regents of the University of California at Los Alamos National Laboratory (the University) under contract No. W-7405-ENG-36 with the U.S. Department of Energy (DOE). All rights in the program are reserved by the DOE and the University. Permission is granted to the public to copy and use this software without charge, provided that this Notice and any statement of authorship are reproduced on all copies. Neither the U.S. Government nor the University makes any warranty, express or implied, or assumes any liability or responsibility for the use of this software.