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HGSYSTEM
141455
HGSYSTEM
http://www.hgsystem.com/hgweb.html
HGSYSTEM is a suite of programs for assessing the dispersion of vapor from gas, liquid or two-phase releases. HGSYSTEM was first developed to model the release of Hydrogen Fluoride and ideal gases, and then extended to include multicomponent mixtures. The original development work was led by Shell Research Ltd. as part of a consortium of 20 petroleum and chemical companies.
Environment > Atmosphere > Air Dispersion Modeling > Software
Mar 28, 2008
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Other links at Environment > Atmosphere > Air Dispersion Modeling > Software
1. Polair
An integrated model (offered by ODOTECH of Montreal, Canada) which includes a choice of mapping, meteorological data input and editing, and Gaussian or Puff dispersion modeling from point, line or area sources.
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The Swedish Meteorological and Hydrological Institute (SMHI) developed a dispersion modeling system with modules for: receiving input data from monitoring stations; an emission data base; and dispersion modeling. The dispersion module has a Gaussian model for small-scale applications, a grid model for large-scale regional applications, a street canyon model for emission sources surrounded by buildings, and a dense gas module.
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Dr. Tom Spicer and Dr. Jerry Havens of the University of Arkansas developed this model (for the U.S. Coast Guard and the Gas Research Institute) primarily for simulating the dispersion of denser-than-air flammable gases. The U.S. EPA later extended DEGADIS for dispersion modeling of vertical jets. Implementation of DEGADIS on personal computers was sponsored by the Gas Research Institute and the American Petroleum Institute.
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The APPH Module (Air Pollution and Public Health) integrates three different models in the Aidair Geneva system. The system was developed in Switzerland to draw maps of air pollution emissions from point sources (power plants, industries) and/or area sources (automotive traffic). The three dispersion models used are: a Gaussian model; a Lagrangian model; and a statistic model.
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The Norwegian Institute for Air Research (NILU) has developed an Air Quality Information System (AirQUIS) having: an emission inventory data base; dispersion models; and a geographical information system (GIS) module. The dispersion models include a source oriented model (EPISODE), a puff-trajectory model, and models for traffic in street canyons and on roads (ROADAIR and CONTILENK).
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Scientific consultants in the field of atmospheric dispersion located in Cambridge, England.. They offer a range of air dispersion models including: ADMS 3 for dispersion of industrial emissions; ADMS-SCREEN for initial screening studies of emission dispersion; and GASTAR for dispersion of accidental dense gas releases.
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A description of the research program in the Mechanical Engineering Department at the University of Hong Kong that led to the development of a comprehensive air dispersion model for use in coastal zones and complex terrain such as exists in the Hong Kong area.
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The Danish Rimpuff and Eulerian Accidental release Model (DREAM), developed by the National Environmental Research Institute (NERI) of Denmark, is a high-resolution, three-dimensional tracer model for short and large scale atmospheric transport, dispersion, and deposition (wet and dry) of radioactive air pollution from a single strong source.
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BEE-Line Software is located in Asheville, North Carolina, USA and markets air dispersion modeling software with training and technical support. They specialize in creating user-intuitive versions of EPA air dispersion models for application in the Windows environment.
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Extensive information from U.S. EPA on air pollution modeling software. Detailed description of mathematical models, guidance and other technical papers.
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