With the support of the NSF and ONR over the past few years we have developed a MATLAB tool that calculates the internal wave field generated by barotropic tidal flow of a nonlinearly stratified fluid past any arbitrary two-dimensional topography of finite extent
You can download a recent version as a .zip file or get up-to-date version via the svn version (svn checkout svn://svn.code.sf.net/p/itides/svn/trunk itides-svn).
Calculates frequencies/modes from an nwchem generated hessian
...The script is finished in its current form in the sense that it is feature complete. Feel free to amend, translate, copy, steal etc.
See the README in the code repository for instructions.
Installation:
Simply download the file and start Octave in the download directory.