Boundary-Layer Meteorology

, Volume 22, Issue 1, pp 3–19 | Cite as

An alternative analysis of flux-gradient relationships at the 1976 ITCE

  • A. J. Dyer
  • E. F. Bradley


An extensive micrometeorological data set from the 1976 International Turbulence Comparison Experiment (ITCE) is analysed to determine flux-gradient relationships in an unstable atmosphere for momentum, sensible heat and water vapour transfers. The data are first analysed for internal consistency, resulting in the rejection of some data. Following a least-square fit to the remaining data in the form Φ/k = (1 − αz/L)/k, rounded-off values of k, α, and β are selected for each form of transfer consistent with the statistical accuracy of the measurements. The equations finally adopted are Φ M = (1 − 28z/L)-1/4 and Φ H, W = (1 − 14z/L)-1/2 with kM = kH = kW = 0.40.

These expressions fit the averaged observations to within a few per cent in the stability range of the experiment (-4 < z/L < -0.004).


Atmosphere Water Vapour Internal Consistency Statistical Accuracy Comparison Experiment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© D. Reidel Publishing Co 1982

Authors and Affiliations

  • A. J. Dyer
    • 1
  • E. F. Bradley
    • 2
  1. 1.CSIRO Division of Atmospheric PhysicsAspendaleAustralia
  2. 2.CSIRO Division of Environmental MechanicsCanberraAustralia

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