ISIS FAST

ISIS FAST is a new and innovative rapid inundation model designed to allow quick assessment of flooding using simplified hydraulics. It provides results up to 1,000 times quicker when compared to traditional two-dimensional (2D) models – providing results in seconds or minutes as apposed to hours or days.

SIS FAST allows modellers to rapidly estimate flood extents and depths from multiple sources of flooding, including tide/surge and fluvial overtopping or breaching of defences, surface water and sewer flooding.

The speed with which it can calculate water depths gives modellers the flexibility to explore uncertainty, interactions and dependency between flood sources and the full range of event magnitude which was previously unpractical or economical.

ISIS FAST applications range from near real time flood inundation prediction on the Tidal Thames in London through to national prediction of areas susceptible to pluvial flooding for the whole of Scotland.

As part of the ISIS suite of products, ISIS FAST is able to dynamically link to ISIS Professional (1D) and ISIS 2D models.