Comparison of ozone fluxes over grassland by gradient and eddy covariance technique

Muller, Jennifer B.A.; Coyle, Mhairi; Fowler, David; Gallagher, Martin W.; Nemitz, Eiko G. ORCID: https://orcid.org/0000-0002-1765-6298; Percival, Carl J.. 2009 Comparison of ozone fluxes over grassland by gradient and eddy covariance technique. Atmospheric Science Letters, 10 (3). 164-169. https://doi.org/10.1002/asl.226

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Abstract/Summary

Ozone flux measurements over vegetation are important to estimate surface losses and ozone uptake by plants. The gradient and eddy covariance flux technique were used for measurements over grassland at a flux-monitoring site in southern Scotland during August 2007. The comparison of the two methods shows that the aerodynamic flux-gradient method provides very similar long-term average fluxes of ozone as the eddy covariance method. The eddy covariance technique is better at capturing diurnal cycles and short-term changes, but the comparison of two fast analysers illustrate that there can be considerable measurement uncertainty.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1002/asl.226
Programmes:	CEH Programmes pre-2009 publications > Biogeochemistry > BG03 Quantifying the growing threat to plant and human health from ground level ozone > BG03.2 Measuring and Modelling Ozone Exchange and effects at country scales
UKCEH and CEH Sections/Science Areas:	Billett (to November 2013)
ISSN:	1530-261X
Additional Keywords:	Ozone, eddy covariance, aerodynamic gradient, deposition velocity, grassland
NORA Subject Terms:	Atmospheric Sciences
Date made live:	06 Oct 2009 09:15 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/7668

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