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Mass transfer from discrete water drops on leaves in a cereal canopy

Abstract

The boundary-layer resistance, r d , for water vapour transfer from single drops on a wheat leaf was derived from field measurements of the evaporation rate, drop temperature and air humidity. Parameters are estimated in an equation to calculate r d from drop diameter and wind speed. The relationship between resistance and wind speed is compared with that from other sources, and possible systematic errors in temperature measurements are examined using a model of the drop energy balance.

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On secondment from Department of Agricultural Sciences, University of Bristol, IACR, Long Ashton Research Station, Long Ashton, Bristol BS18 9AF, U.K.

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Butler, D.R. Mass transfer from discrete water drops on leaves in a cereal canopy. Boundary-Layer Meteorol 53, 33–42 (1990). https://doi.org/10.1007/BF00122461

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  • DOI: https://doi.org/10.1007/BF00122461

Keywords

  • Mass Transfer
  • Wind Speed
  • Water Vapour
  • Systematic Error
  • Energy Balance