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Sensible heat flux estimation by flux variance and half-order time derivative methods

Publication ,  Journal Article
Wesson, KH; Katul, G; Lai, CT
Published in: Water Resources Research
September 12, 2001

This study is the first to contrast two similarity theory methods, the flux variance and the half-order time derivative, over a wide range of atmospheric stability and surface roughness conditions. These two methods were selected because they require only single-level temperature measurement to estimate sensible heat flux. The data used were collected over bare soil, a grass-covered forest clearing, and an even-aged pine forest. For all three sites the flux variance method estimated the sensible heat flux relatively well for unstable atmospheric conditions. The half-order time derivative method was found to be sensitive to the parameterization of the eddy diffusivity, especially for the grass and bare soil field sites. Overall, the flux variance method was able to reproduce the measured sensible heat flux with greater accuracy than the half-order time derivative methods for the three experiment sites.

Duke Scholars

Published In

Water Resources Research

DOI

ISSN

0043-1397

Publication Date

September 12, 2001

Volume

37

Issue

9

Start / End Page

2333 / 2343

Related Subject Headings

  • Environmental Engineering
  • 4011 Environmental engineering
  • 4005 Civil engineering
  • 3707 Hydrology
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0406 Physical Geography and Environmental Geoscience
 

Citation

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Wesson, K. H., Katul, G., & Lai, C. T. (2001). Sensible heat flux estimation by flux variance and half-order time derivative methods. Water Resources Research, 37(9), 2333–2343. https://doi.org/10.1029/2001WR900021
Wesson, K. H., G. Katul, and C. T. Lai. “Sensible heat flux estimation by flux variance and half-order time derivative methods.” Water Resources Research 37, no. 9 (September 12, 2001): 2333–43. https://doi.org/10.1029/2001WR900021.
Wesson KH, Katul G, Lai CT. Sensible heat flux estimation by flux variance and half-order time derivative methods. Water Resources Research. 2001 Sep 12;37(9):2333–43.
Wesson, K. H., et al. “Sensible heat flux estimation by flux variance and half-order time derivative methods.” Water Resources Research, vol. 37, no. 9, Sept. 2001, pp. 2333–43. Scopus, doi:10.1029/2001WR900021.
Wesson KH, Katul G, Lai CT. Sensible heat flux estimation by flux variance and half-order time derivative methods. Water Resources Research. 2001 Sep 12;37(9):2333–2343.
Journal cover image

Published In

Water Resources Research

DOI

ISSN

0043-1397

Publication Date

September 12, 2001

Volume

37

Issue

9

Start / End Page

2333 / 2343

Related Subject Headings

  • Environmental Engineering
  • 4011 Environmental engineering
  • 4005 Civil engineering
  • 3707 Hydrology
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0406 Physical Geography and Environmental Geoscience