Boundary-Layer Meteorology

, Volume 100, Issue 3, pp 469–485 | Cite as

Comparison Of Upwind Land Use And Roughness Length Measured In The Urban Boundary Layer

  • G. G. Rooney


The results of wind measurements taken in two studies at an urban sitein Birmingham (UK) are presented. Displacement heights and roughnesslengths are calculated that compare well with previous measurements inthe urban canopy. Dimensionless windshear and vertical-velocity standarddeviation are also shown to obey Monin–Obukhov similarity theory. Themean roughness lengths measured at the highest measuring position (45 m)increase with the fraction of upwind urban cover calculated using asource-area model.

Displacement height Roughness length Similarity Source-area modelling Urban micrometeorology 


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  1. Arya, S. P.: 1988, Introduction to Micrometeorology, Academic Press, San Diego, 303 pp.Google Scholar
  2. Clarke, J. F., Ching, J. K. S., and Godowitch, J. M.: 1982, An Experimental Study of Turbulence in an Urban Environment, Tech. Rep. U.S. E.P.A., Research Triangle Park, N.C., NMS PB 226085.Google Scholar
  3. Grimmond, C. S. B. and Oke, T. R.: 1999, ‘Aerodynamic Properties of Urban Areas Derived from Analysis of Surface Form’ J. Appl. Meteor. 38, 1262-1292.Google Scholar
  4. Grimmond, C. S. B., King, T. S., Roth, M., and Oke, T. R.: 1998, ‘Aerodynamic Roughness of Urban Areas Derived from Wind Observations’ Boundary-Layer Meteorol. 89, 1-24.Google Scholar
  5. Hicks, B. B.: 1995, ‘Monin-Obukhov Similarity-An Historical Perspective’ in 11th Symposium on Boundary Layers and Turbulence, American Meteorological Society, pp. 1-4.Google Scholar
  6. Hopwood, W. P.: 1998, Source-Area Modelling of Surface Fluxes: Part I-Theory and Implementation in the Site-Specific Forecast Model, Forecasting Research Technical Report 237, The Met Office, Bracknell, U.K., pp. 1-32.Google Scholar
  7. Kaimal, J. C. and Finnigan, J. J.: 1994, Atmospheric Boundary Layer Flows: Their Structure and Measurement, Oxford University Press, Oxford, 289 pp.Google Scholar
  8. Mason, P. J.: 1988, ‘The Formation of Areally-Averaged Roughness Lengths’ Quart. J. Roy. Meteorol. Soc. 114, 399-420.Google Scholar
  9. Rotach, M.W.: 1993, ‘Turbulence Close to a Rough Urban Surface. Part II: Variances and Gradients’ Boundary-Layer Meteorol. 66, 75-92.Google Scholar
  10. Rotach, M. W.: 1994, ‘Determination of the Zero-Plane Displacement in an Urban Environment’ Boundary-Layer Meteorol. 67, 187-193.Google Scholar
  11. Roth, M.: 2000, ‘Review of Atmospheric Turbulence over Cities’ Quart. J. Roy. Meteorol. Soc. 126, 941-990.Google Scholar
  12. Schmid, H. P.: 1994, ‘Source Areas for Scalars and Scalar Fluxes’ Boundary-Layer Meteorol. 67, 293-318.Google Scholar
  13. Schmid, H. P. and Oke, T. R.: 1990, ‘A Model to Estimate the Source Area Contributing to Turbulent Exchange in the Surface Layer over Patchy Terrain’ Quart. J. Roy. Meteorol. Soc. 116, 965-988.Google Scholar
  14. Schmid, H. P., Cleugh, H. A., Grimmond, C. S. B., and Oke, T. R.: 1991, ‘Spatial Variability of Energy Fluxes in Suburban Terrain’ Boundary-Layer Meteorol. 54, 249-276.Google Scholar

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • G. G. Rooney
    • 1
  1. 1.Met Office Field SiteCardington AirfieldShortstown, BedfordUK

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