The theoretical relationship between foliage temperature and canopy resistance in sparse crops

W. James Shuttleworth, R. J. Gurney

Research output: Chapter in Book/Report/Conference proceedingChapter

251 Citations (Scopus)

Abstract

One-dimensional, sparse-crop interaction theory is reformulated to allow calculation of the canopy resistance from measurements of foliage temperature. A submodel is introduced to describe eddy diffusion within the canopy. The sensitivity of the calculated canopy resistance to the parameters and formulae assumed in the model is investigated. The calculation is shown to exhibit a significant but acceptable sensitivity to extreme changes in canopy aerodynamics, and to changes in the surface resistance of the substrate beneath the canopy at high and intermediate values of leaf area index. In very sparse crops changes in the surface resistance of the substrate are shown to contaminate the calculated canopy resistance, tending to amplify the apparent response to changes in water availability. -from Authors

Original languageEnglish (US)
Title of host publicationQuarterly Journal - Royal Meteorological Society
Pages497-519
Number of pages23
Volume116
Edition492
StatePublished - 1990
Externally publishedYes

Fingerprint

foliage
canopy
crop
Temperature
Water
temperature
substrate
water availability
leaf area index
aerodynamics
eddy
calculation

ASJC Scopus subject areas

  • Medicine(all)
  • Atmospheric Science

Cite this

Shuttleworth, W. J., & Gurney, R. J. (1990). The theoretical relationship between foliage temperature and canopy resistance in sparse crops. In Quarterly Journal - Royal Meteorological Society (492 ed., Vol. 116, pp. 497-519)

The theoretical relationship between foliage temperature and canopy resistance in sparse crops. / Shuttleworth, W. James; Gurney, R. J.

Quarterly Journal - Royal Meteorological Society. Vol. 116 492. ed. 1990. p. 497-519.

Research output: Chapter in Book/Report/Conference proceedingChapter

Shuttleworth, WJ & Gurney, RJ 1990, The theoretical relationship between foliage temperature and canopy resistance in sparse crops. in Quarterly Journal - Royal Meteorological Society. 492 edn, vol. 116, pp. 497-519.
Shuttleworth WJ, Gurney RJ. The theoretical relationship between foliage temperature and canopy resistance in sparse crops. In Quarterly Journal - Royal Meteorological Society. 492 ed. Vol. 116. 1990. p. 497-519
Shuttleworth, W. James ; Gurney, R. J. / The theoretical relationship between foliage temperature and canopy resistance in sparse crops. Quarterly Journal - Royal Meteorological Society. Vol. 116 492. ed. 1990. pp. 497-519
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