Atmospheric Science Programme, Department of Geography, University of British Columbia, Vancouver, B.C., Canada
Turbulent transfer relationships over an urban surface. II: Integral statistics
Article first published online: 15 DEC 2006
Copyright © 1993 Royal Meteorological Society
Quarterly Journal of the Royal Meteorological Society
Volume 119, Issue 513, pages 1105–1120, July 1993 Part B
How to Cite
Roth, M. (1993), Turbulent transfer relationships over an urban surface. II: Integral statistics. Q.J.R. Meteorol. Soc., 119: 1105–1120. doi: 10.1002/qj.49711951312
- Issue published online: 15 DEC 2006
- Article first published online: 15 DEC 2006
- Manuscript Revised: 15 JAN 1993
- Manuscript Received: 25 AUG 1992
- Natural Sciences and Engineering Council of Canada and the Atmospheric Environment Service of Environment, Canada
A comprehensive study of atmospheric turbulence over an urban surface has been carried out. Part II presents the normalized standard deviations of all important atmospheric variables from unstable conditions Measured at z'/z0=37 and analysed within the Monin-Obukhov similarity framework. They differ from the rural reference data in the following ways.
- (1)The normalized standard deviation of vertical velocity is systematically smaller.
- (2)The efficiency of urban transfer of heat and especially momentum are larger.
- (3)The humidity statistics cannot be described within the similarity framework.
It is suggested that the roughness sublayer effects and large-scale space and time inhomogeneities of the motions in the suburban atmosphere are responsible for the observed dissimilarities.