ADMS-STAR uses a Lagrangian puff methodology to model the fate of explosive or finite duration releases to atmosphere. ADMS-STAR can use temporally and spatially varying meteorological data from the WRF model, vertical profiles of meteorological data or simple surface data. ADMS-STAR can also account for the impact of complex terrain: hills, variable surface roughness; and marine effects.
ADMS-STAR calculates instantaneous air concentration and accumulated wet and dry deposition for radiological or chemical emissions. These can be compared against regulatory or other levels (e.g. EU maximum permitted levels in foodstuffs).
ADMS-STAR can be used either in situations where the source details are known or it can perform a back calculation and estimate the source strength based on air or soil sample data.
ADMS-STAR has a link to ESRI's ArcGIS (Geographical Information System) for entering source and receptor data and displaying contours of concentration and/or deposition overlaid on a map of the area where the incident occurred.
Operators and regulators concerned with determining the impact of accidental releases of passive and buoyant material, in particular, radioactive species.
Contour animation of an example gas release at the North Sea modelled by ADMS-STAR.
ADMS-STAR has a user-friendly Windows interface, making it easy to set up the model and view results. The input data are arranged in a series of screens with default values provided for much of the information. This makes the model ideal for rapid data entry and use by non-specialists, e.g. in emergency situations.
The system has the following features: