Abstract
Abstract An analysis is made of the Monin‐Obukhov function Φ M in the familiar wind profile equation, using data from two recent expeditions to Gurley (New South Wales) and Hay (New South Wales). In one, the friction velocity u * is determined directly by the eddy correlation method, and in the other, conducted during mid‐winter when small heat‐fluxes were experienced, by the use of a friction coefficient applied to a low‐level wind. By collating with a similar earlier analysis for heat and water vapour transfer, the variations of Φ M , Φ H and Φ W with stability are presented in tabular form in the z/L range − 0.01 to − 1.0. Within this range the empirical relationships Φ M = (1 − 16 z/L ) −1/4 and Φ H, W = (1 − 16 z/L ) −1/2 , and the implied equality between Ri and z/L , are found to approximate the data to within a few per cent.
Keywords
Flux (metallurgy)Richardson numberWind speedEddy covarianceRange (aeronautics)Constant (computer programming)Heat fluxSensible heatMeteorologyStability (learning theory)MathematicsShear velocityEnvironmental scienceAtmospheric sciencesThermodynamicsPhysicsMechanicsMaterials scienceHeat transferTurbulence
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Publication Info
- Year
- 1970
- Type
- article
- Volume
- 96
- Issue
- 410
- Pages
- 715-721
- Citations
- 946
- Access
- Closed
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Cite This
A. J. Dyer,
B. B. Hicks
(1970).
Flux‐gradient relationships in the constant flux layer.
Quarterly Journal of the Royal Meteorological Society
, 96
(410)
, 715-721.
https://doi.org/10.1002/qj.49709641012
Identifiers
- DOI
- 10.1002/qj.49709641012