Investigation of regional flow patterns for improving estimates of effluent transport and diffusion
Regional wind flow patterns and transport in the lower planetary boundary layer were examined from a network of 29 wind recording stations over the Mid-Columbia Region of Washington and Oregon. Spatial and temporal variability in the computed wind fields were analyzed from hourly data during November 1974 over a study area of 170 by 190 km. Much of the surface variability in flow appears to be due to topographical effects. From an investigation of the non-frontal situations, there is evidence that regional flow types could be classified, to some extent, by surface pressure patterns. Based on this study, long-term or regional transport based entirely on 850 mb flow could be in serious error. Techniques for improving estimates of regional transport, through the adoption and modification of an existing model and the utilization of regional data are examined. Applications of these techniques to various facets, i.e., environmental impacts from potential industrial and nuclear development, are discussed. (auth)
- Research Organization:
- Battelle Pacific Northwest Labs., Richland, Wash. (USA)
- DOE Contract Number:
- E(45-1)-1830
- NSA Number:
- NSA-33-011943
- OSTI ID:
- 4129636
- Report Number(s):
- BNWL-SA-5347; CONF-751138-1
- Resource Relation:
- Conference: Annual meeting of Pacific Northwest International Section Air Pollution Control Association, Vancouver, B.C., Canada, 19 Nov 1975; Other Information: Orig. Receipt Date: 30-JUN-76
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
N44310 - Environmental & Earth Sciences-Radioactivity Monitoring & Transport-Atmosphere
N44700 -Environmental & Earth Sciences-Chemical Effluents
500100* -Environmental Sciences
Atmospheric-Basic Studies
*AIR POLLUTION- REGIONAL ANALYSIS
*CHEMICAL EFFLUENTS- DIFFUSION
*GASEOUS WASTES- DIFFUSION
*RADIOACTIVE EFFLUENTS- DIFFUSION
BOUNDARY LAYERS
DAILY VARIATIONS
ENVIRONMENT
ERRORS
MATHEMATICAL MODELS
METEOROLOGY
OREGON
TOPOGRAPHY
TURBULENCE
VELOCITY
WASHINGTON
WIND