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Boundary-Layer Meteorology

, Volume 2, Issue 4, pp 466–475 | Cite as

Average Bowen-ratio methods of calculating evapotranspiration applied to a Douglas fir forest

  • T. A. Black
  • K. G. McNaughton
Article

Abstract

Daily evapotranspiration from a Douglas fir forest was calculated using Webb's average Bowen-ratio method. Webb's method is generalized to include the effects of the diabatic wind profile. Over a 17-day period characterized by light winds, the modified Webb method agreed with the daily totals of half-hour energy balance calculations to within 1 1/2 % on the average, while Webb's method overestimated by 26 % on the average.

Keywords

Energy Balance Wind Profile Balance Calculation Daily Total Light Wind 
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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References

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Copyright information

© D. Reidel Publishing Company 1972

Authors and Affiliations

  • T. A. Black
    • 1
  • K. G. McNaughton
    • 1
  1. 1.Dept. of Soil ScienceUniversity of British ColumbiaVancouverCanada

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