Hello at all, someone have the PC version of that software, released by gastechnology.

DEGADIS simulates the atmospheric dispersion at ground-level of area source dense gas (or aerosol) clouds released with zero momentum into the atmospheric boundary layer over flat, level terrain. The model describes the dispersion processes which accompany the ensuing gravity-driven flow and entrainment of the gas into the boundary layer.

The DEGADIS model was originally developed for the U.S. Coast Guard and the Gas Research Institute primarily for simulation of the dispersion of cryogenic flammable gases. Subsequent work sponsored by the U.S. Environmental Protection Agency extended DEGADIS for simulation of the dispersion of vertical jets. Implementation of DEGADIS on a personal computer was sponsored by the Gas Research Institute and the American Petroleum Institute.

Regards