Boundary-Layer Meteorology

, Volume 71, Issue 1–2, pp 211–216 | Cite as

Simplified expressions for vegetation roughness length and zero-plane displacement as functions of canopy height and area index

  • M. R. Raupach
Research Notes


Using a previous treatment of drag and drag partition on rough surfaces, simple analytic expressions are derived for the roughness length (z0) and zero-plane displacement (d) of vegetated surfaces, as functions of canopy height (h) and area index (Λ). The resulting expressions provide a good fit to numerous field and wind tunnel data, and are suitable for applications such as surface parameterisations in atmospheric models.


Rough Surface Wind Tunnel Previous Treatment Area Index Atmospheric Model 
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Copyright information

© Kluwer Academic Publishers 1994

Authors and Affiliations

  • M. R. Raupach
    • 1
  1. 1.CSIRO Centre for Environmental MechanicsCanberraAustralia

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