Evaluation of Savannah River Lab. atmospheric dispersion models

Conference · Thu Jan 01 00:00:00 EST 1987 · Trans. Am. Nucl. Soc.; (United States)

OSTI ID:5564720

Addis, R P

Evaluation of atmospheric transport and dispersion models using planned releases of chemical tracers is a vital component of atmospheric contaminant modeling. The Savannah River Lab. (SRL) is conducting a continuing series of Mesoscale Atmospheric Transport Studies (MATS). These studies involve the planned release of the tracer sulfur hexafluoride (SF/sub 6/) to evaluate the performance of SRL atmospheric models, to identify areas for future model improvement, and to gain greater insight into the mechanisms of atmospheric dispersion at the Savannah River Plant (SRP). There are two primary atmospheric transport and dispersion models used at SRL: a simple Gaussian model, Puff-Plume, and a sequential Gaussian model, 2DPUF, still under development. Calculations by these models are used in conjunction with observations from sampling teams to estimate surface concentrations and doses resulting from radiologic and/or chemical contaminants released into the atmosphere. Puff-Plume is used for an initial survey of the plume and to help guide sampler deployment; 2DPUF is used for final evaluation and analysis after a release. Hence, it is important to understand how surface concentrations predicted by these models compare with those observed in an intensive series of surface measurements. The results of 14 daytime MATS, conducted in predominantly convectively unstable conditions, showed that Puff-Plume simulated the plume width well.

• OSTI ID: 5564720
• Report Number(s): CONF-870601-; TRN: 88-010176
• Journal Information: Trans. Am. Nucl. Soc.; (United States), Vol. 54; Conference: Annual meeting of the American Nuclear Society, Dallas, TX, USA, 7 Jun 1987
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ATMOSPHERIC CIRCULATION
MATHEMATICAL MODELS
RADIONUCLIDE MIGRATION
SAVANNAH RIVER PLANT
RADIOACTIVE EFFLUENTS
AIR SAMPLERS
SULFUR FLUORIDES
ENVIRONMENTAL TRANSPORT
EQUIPMENT
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
MASS TRANSFER
MATERIALS
NATIONAL ORGANIZATIONS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SAMPLERS
SULFUR COMPOUNDS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTES
500300* - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (-1989)