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Turbulence statistics at 30 and 200 feet at Pinawa, Manitoba

Munn, R.E. / Reimer, A.

Abstract In the summer of 1965,20-min bi-directional vane observations were taken at heights of 30 and 200 ft at the Whiteshell Nuclear Research Establishment, Pinawa, Manitoba, on 44 occasions. A few of the measurements were made during periods of strong vertical wind shear (as much as 13 mile hr⁻¹ between 20 and 200 ft). Median values of the standard deviations of elevation and azimuth angles are given for various wind and stability classes. The turbulence at 30 ft relates well to the local obstructions upwind but the 200-ft values are relatively insensitive to wind direction. The standard deviations are larger for lapse than for inversion conditions and decrease with increasing wind speed. In addition, the 200-ft values decrease markedly with increasing wind shear.

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Turbulence statistics at 30 and 200 feet at Pinawa, Manitoba

Munn, R.E. / Reimer, A.

Abstract In the summer of 1965,20-min bi-directional vane observations were taken at heights of 30 and 200 ft at the Whiteshell Nuclear Research Establishment, Pinawa, Manitoba, on 44 occasions. A few of the measurements were made during periods of strong vertical wind shear (as much as 13 mile hr⁻¹ between 20 and 200 ft). Median values of the standard deviations of elevation and azimuth angles are given for various wind and stability classes. The turbulence at 30 ft relates well to the local obstructions upwind but the 200-ft values are relatively insensitive to wind direction. The standard deviations are larger for lapse than for inversion conditions and decrease with increasing wind speed. In addition, the 200-ft values decrease markedly with increasing wind shear.

Turbulence statistics at 30 and 200 feet at Pinawa, Manitoba

Munn, R.E. / Reimer, A.

Abstract In the summer of 1965,20-min bi-directional vane observations were taken at heights of 30 and 200 ft at the Whiteshell Nuclear Research Establishment, Pinawa, Manitoba, on 44 occasions. A few of the measurements were made during periods of strong vertical wind shear (as much as 13 mile hr⁻¹ between 20 and 200 ft). Median values of the standard deviations of elevation and azimuth angles are given for various wind and stability classes. The turbulence at 30 ft relates well to the local obstructions upwind but the 200-ft values are relatively insensitive to wind direction. The standard deviations are larger for lapse than for inversion conditions and decrease with increasing wind speed. In addition, the 200-ft values decrease markedly with increasing wind shear.

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Title:

Turbulence statistics at 30 and 200 feet at Pinawa, Manitoba

Contributors:

Munn, R.E. (author) / Reimer, A. (author)

Published in:

Atmospheric Environment ; 2 ; 409-417

Publication date:

1968-02-12

Size:

9 pages

ISSN:

DOI:

https://doi.org/10.1016/0004-6981(68)90010-3

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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