Evaluation of Savannah River Laboratory atmospheric dispersion models

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6175977

Addis, R P

The results of 14 daytime MATS, conducted in predominantly convectively unstable conditions, showed that Puff-Plume simulated the plume width well. Puff-Plume predicted a mean plume width which averaged 0.9 times that observed. However, it consistently overpredicted the centerline maximum concentration at 30 km downwind on average by 5.4 times that observed. However, it consistently overpredicted the centerline maximum concentration at 30 km downwind on average by 5.4 times that observed. Puff-Plume did not underestimate the maximum surface tracer concentration on any occasion. This strongly suggests that PFPL adequately simulates dispersion in the cross wind direction, but does not adequately simulate dispersion in the vertical. As a result, consideration is being given to other methods of simulating dispersion in the vertical. The sequential Gaussian model 2DPUF predicted the centerline surface concentrations well in the mean, averaging 1.5 times that observed. Although 2DPUF underestimated the surface concentration on half the occasions, the greatest underestimate of the centerline concentration was only 60% of that observed.

• Research Organization: Savannah River Lab., Aiken, SC (USA)
• DOE Contract Number: AC09-76SR00001
• OSTI ID: 6175977
• Report Number(s): DP-MS-86-214; CONF-870601-21; ON: DE87012942
• Country of Publication: United States
• Language: English

Related Subjects

500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
500300* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHEMICAL EFFLUENTS
DIFFUSION
EARTH ATMOSPHERE
ENVIRONMENT
MATERIALS
MATHEMATICAL MODELS
METEOROLOGY
NATIONAL ORGANIZATIONS
PLUMES
RADIOACTIVE EFFLUENTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SAVANNAH RIVER PLANT
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTES