The Atmospheric Release Advisory Capability Site Workstation System

Conference · Thu Apr 01 00:00:00 EST 1993

OSTI ID:10150295

Foster, K T; Sumikawa, D A; Foster, C S ^[1]; Baskett, R L ^[2]

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1. Lawrence Livermore National Lab., CA (United States)
2. EG and G Energy Measurements, Inc., Pleasanton, CA (United States)

The Atmospheric Release Advisory Capability (ARAC) is a centralized emergency response service that assesses the consequences that may result from an atmospheric release of toxic material. ARAC was developed by the Lawrence Livermore National Laboratory (LLNL) for the Departments of Energy (DOE) and Defense (DOD) and responds principally to radiological accidents. ARAC provides radiological health and safety guidance to decision makers in the form of computer-generated estimates of the effects of an actual, or potential release of radioactive material into the atmosphere. Upon receipt of the release scenario, the ARAC assessment staff extracts meteorological, topographic, and geographic data from resident world-wide databases for use in complex, three-dimensional transport and diffusion models. These dispersion models generate air concentration (or dose) and ground deposition contour plots showing estimates of the contamination patterns produced as the toxic material is carried by the prevailing winds. To facilitate the ARAC response to a release from specific DOE and DOD sites and to provide these sites with a local emergency response tool, a remote Site Workstation System (SWS) is being placed at various ARAC-supported facilities across the country.. This SWS replaces the existing antiquated ARAC Site System now installed at many of these sites. The new system gives users access to complex atmospheric dispersion models that may be run either by the ARAC staff at LLNL, or (in a later phase of the system) by site personnel using the computational resources of the SWS. Supporting this primary function are a variety of SWS-resident supplemental capabilities that include meteorological data acquisition, manipulation of release-specific databases, computer-based communications, and the use of a simpler Gaussian trajectory puff model that is based on Environmental Protection Agency`s INPUFF code.

• Research Organization: Lawrence Livermore National Lab., CA (United States); EG and G Energy Measurements, Inc., Pleasanton, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC08-93NV11265; W-7405-ENG-48
• OSTI ID: 10150295
• Report Number(s): EGG-11265-4001; CONF-930810-1; ON: DE93011032; TRN: 93:015184
• Resource Relation: Conference: Topical meeting on environmental transport and dosimetry,Charleston, SC (United States),31 Aug - 3 Sep 1993; Other Information: PBD: [1993]
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
EMERGENCY PLANS
RESPONSE FUNCTIONS
RADIONUCLIDE MIGRATION
MATHEMATICAL MODELS
AIR
RADIOACTIVE EFFLUENTS
EMISSION
RADIATION ACCIDENTS
TESTING
RADIATION DOSES
540130
990200
RADIOACTIVE MATERIALS MONITORING AND TRANSPORT
MATHEMATICS AND COMPUTERS