GTAS Project Overview
The Geo-Targeted Alerting System (GTAS) project is a prototype implementation of the latest
developments in plume modeling, high resolution weather models, and network enabled operations.
These technologies will build upon the National Oceanic and Atmospheric Administration's (NOAA)
National Weather Service (NWS) operational meteorological data delivery system to enable emergency
managers from their desktops to:
NOAA's Air Resources Laboratory is enhancing the Hybrid Single Particle Lagrangian Integrated Trajectory (HySPLIT) dispersion model with the Computer-Aided Management of Emergency Operations (CAMEO) chemicals database to enable HySPLIT to accurately model over 500 different types of hazardous substances. The Weather Research and Forecast (WRF) Nonhydrostatic Mesoscale Model (NMM) data will be provided by NOAA's Global Systems Division (GSD) so that HySPLIT can more accurately model the trajectory and dispersion of the release. The WRF-NMM model output will be ingested on GTAS NWS regional servers where the HySPLIT model will be hosted. The GTAS servers will also be populated with real-time weather data made available by NWS. Emergency managers and local forecasters will be able to collaborate on toxic spills and weather hazards using GTAS' FSL X-Window Collaborate (FXC) workstation. FXC will provide the net enabled operational interface to HySPLIT, WRF-NMM, and other meteorological data sets. These tools will provide emergency managers and forecasters the ability to quickly assess and provide more accurate response and mitigation plans to the public.
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Last updated 2 Apr 2009