Prediction of Wind Speed, Direction and Diffusivity under Neutral Conditions for Tall Stacks.

Details Prediction of Wind Speed, Direction and Diffusivity under Neutral Conditions for Tall Stacks. Prediction of Wind Speed, Direction and Diffusivity under Neutral Conditions for Tall Stacks.

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988japme..27..261r&link_type=abstract

Journal of Applied Meteorology, vol. 27, Issue 3, pp.261-268

Computer Science

1

Scientific paper

A one dimensional model of the neutral planetary boundary layer is used to predict the wind velocity and coefficient of eddy diffusivity throughout the 2-km planetary boundary layer. Comparison with routine radiosonde observations show that at 500 m, the model predictions of wind speed are within 1.2 of the observed values where is the probable error of the observed values. An interesting correlation between the height of maximum diffusion and length scale (u(/f) of the neutral boundary layer has emerged out of this study.The velocity and diffusivity profiles from the PBL model are then used in the solution of a three-dimensional advection diffusion equation for the dispersal of nonreactive pollutants in the atmosphere. The results indicate that it is possible to select stack heights to ensure maximum dilution of a pollutant immediately on release and thereby minimize its long-range transport.

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