HYDESim maps overpressure radii generated by a ground-level detonation; these radii are an indicator of structural damage to buildings. No other effects, such as thermal damage or fallout levels, are included in this tool. Note that the displayed rings are “idealized”; that is, no account is taken of terrain, urban density, ground type, weather conditions, and so on.
The data used in HYDESim are based on information found in “The Effects of Nuclear Weapons”, 3rd Edition, by Samuel Glasstone and Philip J. Dolan. And the result is really beautiful and very useful for who want to study radiation in populated cities in US. Unfortunately data are available for some cities in US only.
