Hydrologic Transport
Assessment System (HYTRAS) (Presentation) HYTRAS predicts the transport of nuclear, biological, and
chemical agents in surface waters. HYTRAS uses geospatial information,
hydrological data, and soil and sediment characteristics to estimate
nuclear, biological, and chemical agent concentrations in water and
sediment. HYTRAS is planned for inclusion in future versions of the
Military's Hazard Prediction Assessment Capability (HPAC)
Hazard Prediction and Assessment Capability (HPAC) HPAC, which is funded by the Defense Threat Reduction Agency
and Strategic Command, is an integrated system of codes and data that
provide detailed information on the dispersal of hazardous atmospheric
releases of nuclear, biological, and chemical materials. HPAC includes
detailed, three-dimensional information on sources, atmospheric transport
and dispersion, and ground deposition, all linked to worldwide population
information at a one-kilometer resolution to predict the consequences of
various releases. The system provides estimates of acute and long-term
radiological, chemical, or biological population doses.
