An updated summary of MATHEW/ADPIC model evaluation studies

Conference · Tue May 01 04:00:00 EDT 1990

OSTI ID:6799497

Foster, K T; Dickerson, M H

This paper summarizes the major model evaluation studies conducted for the MATHEW/ADPIC atmospheric transport and diffusion models used by the US Department of Energy's Atmospheric Release Advisory Capability. These studies have taken place over the last 15 years and involve field tracer releases influenced by a variety of meteorological and topographical conditions. Neutrally buoyant tracers released both as surface and elevated point sources, as well as material dispersed by explosive, thermally bouyant release mechanisms have been studied. Results from these studies show that the MATHEW/ADPIC models estimate the tracer air concentrations to within a factor of two of the measured values 20% to 50% of the time, and within a factor of five of the measurements 35% to 85% of the time depending on the complexity of the meteorology and terrain, and the release height of the tracer. Comparisons of model estimates to peak downwind deposition and air concentration measurements from explosive releases are shown to be generally within a factor of two to three. 24 refs., 14 figs., 3 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6799497
• Report Number(s): UCRL-JC-104134; CONF-9008157--1; ON: DE91000403
• Country of Publication: United States
• Language: English

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45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
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54 ENVIRONMENTAL SCIENCES
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Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
ACCIDENTS
ATMOSPHERIC EXPLOSIONS
COMPLEX TERRAIN
COMPUTER CODES
DIFFUSION
EARTH ATMOSPHERE
ECOLOGICAL CONCENTRATION
EMERGENCY PLANS
EMISSION
ENVIRONMENTAL TRANSPORT
EXPLOSIONS
FORECASTING
ISOTOPE APPLICATIONS
M CODES
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
METEOROLOGY
NUCLEAR EXPLOSIONS
RADIOACTIVE MATERIALS
RADIOECOLOGICAL CONCENTRATION
RADIONUCLIDE MIGRATION
TOPOGRAPHY
TRACER TECHNIQUES