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Roughness lengths for temperature and momentum over heterogeneous terrain

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Abstract

Measurements are presented describing the behaviour of roughness lengths for momentum and temperature for heterogeneous terrain of low fractional rough cover. The momentum roughness lengths were found to be up to several orders of magnitude larger than that for temperature, behaviour which is characteristic of a bluff-rough type of surface and which is consistent with previous experimental and theoretical studies. This contrasts with observations over uniform, vegetated surfaces, which show only an order-of-magnitude increase of momentum roughness length over that for temperature.

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References

  • André, J.-C. and Blondin, C.: 1986, ‘On the Effective Roughness Length for Use in Numerical Three-Dimensional Models’,Boundary-Layer Meteorol. 35, 231–245.

    Google Scholar 

  • Beljaars, A. C. M. and Holtslag, A. A. M.: 1991, ‘Flux Parameterisation over Land Surfaces for Atmospheric Models’,J. Appl. Meteorol. 30, 327–341.

    Google Scholar 

  • Beljaars, A. C. M., Schotanus, P. and Nieuwstadt, F. T. M.: 1983, ‘Surface Layer Similarity under Nonuniform Fetch Conditions’,J. Clim. Appl. Meteorol. 22, 1800–1810.

    Google Scholar 

  • Brutsaert, W.: 1975, ‘A Theory for Local Evaporation (or Heat Transfer) from Rough and Smooth Surfaces at Ground Level’,Water Resour. Res. 11, 543–550.

    Google Scholar 

  • Brutsaert, W.: 1982,Evaporation into the Atmosphere, Reidel, Dordrecht, The Netherlands.

    Google Scholar 

  • Claussen, M.: 1990, ‘Area-Averaging of Surface Fluxes in a Neutrally Stratified, Horizontally Inhomogeneous Atmospheric Boundary Layer’,Atmos. Environ. 24A, 1349–1360.

    Google Scholar 

  • Claussen, M. and Klaasen, K.: 1992, ‘On Regional Surface Fluxes over Partly Forested Areas’,Beitr. Phys. Atmosph. 65, 243–248.

    Google Scholar 

  • Duynkerke, P. G.: 1992, ‘The Roughness Length for Heat and Other Vegetation Parameters for a Surface of Short Grass’,J. Appl. Meteorol. 31, 579–586.

    Google Scholar 

  • Garratt, J. R.: 1978, ‘Transfer Characteristics for a Heterogenous Surface of Large Aerodynamic Roughness’,Quart. J. Roy. Meteorol. Soc. 104, 491–502.

    Google Scholar 

  • Garratt, J. R. and Francey, R. J.: 1978, ‘Bulk Characteristics of Heat Transfer in the Unstable, Baroclinic Atmospheric Boundary Layer’,Boundary-Layer Meteorol. 15, 399–421.

    Google Scholar 

  • Garratt, J. R. and Hicks, B. B.: 1973, ‘Momentum, Heat and Water Vapour Transfer to and from Natural and Artificial Surfaces’,Quart. J. Roy. Meteorol. Soc. 99, 680–687.

    Google Scholar 

  • Lenschow, D. H. and Stankov, B. B.: 1986, ‘Length Scales in the Convective Boundary Layer’,J. Atmos. Sci. 43, 1198–1209.

    Google Scholar 

  • Mason, P. J.: 1988, ‘The Formation of Areally-Averaged Roughness Lengths’,Quart. J. Meteorol. Soc. 114, 399–420.

    Google Scholar 

  • Monna, W. A. A. and van der Vliet, J. G.: 1987, ‘Facilities for Research and Weather Observations on the 213 m Tower at Cabauw and Remote Locations’, KNMI Scientific Rep. 87-5, KNMI, De Bilt, The Netherlands, 27 pp.

    Google Scholar 

  • Paulson, C. A.: 1970, ‘The Mathematical Representation of Wind Speed and Temperature Profiles in the Unstable Atmospheric Surface Layer’,J. Appl. Meteorol. 9, 857–861.

    Google Scholar 

  • 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 

  • Schotanus, P., Nieuwstadt, F. T. M., and De Bruin, H. A. R.: 1983, ‘Temperature Measurement with a Sonic Anemometer and its Application to Heat and Moisture Fluctuations’,Boundary-Layer Meteorol. 26, 81–93.

    Google Scholar 

  • Taylor, P. A.: 1987, ‘Comments and Further Analysis on Effective Roughness Lengths for Use in Numerical Three-Dimensional Models’,Boundary-Layer Meteorol. 39, 403–418.

    Google Scholar 

  • Wood, N. and Mason, P. J.: 1991, ‘The Influence on Static Stability on the Effective Roughness Lengths for Momentum and Heat Transfer’,Quart. J. Roy. Meteorol. Soc. 117, 1025–1056.

    Google Scholar 

  • Wyngaard, J. C.: 1973, ‘On Surface Layer Turbulence’, in D. A. Haugen (ed.), Workshop on Micrometerology, American Meteorol. Soc., Boston, pp. 101–149.

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Hignett, P. Roughness lengths for temperature and momentum over heterogeneous terrain. Boundary-Layer Meteorol 68, 225–236 (1994). https://doi.org/10.1007/BF00705598

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  • DOI: https://doi.org/10.1007/BF00705598

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