Articles | Volume 21, issue 19
https://doi.org/10.5194/acp-21-15283-2021
https://doi.org/10.5194/acp-21-15283-2021
Research article
 | 
14 Oct 2021
Research article |  | 14 Oct 2021

Spatially and temporally resolved measurements of NOx fluxes by airborne eddy covariance over Greater London

Adam R. Vaughan, James D. Lee, Stefan Metzger, David Durden, Alastair C. Lewis, Marvin D. Shaw, Will S. Drysdale, Ruth M. Purvis, Brian Davison, and C. Nicholas Hewitt

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Cited articles

Aubinet, M., Vesala, T., and Papale, D.: Eddy covariance: a practical guide to measurement and data analysis, Springer Nature Switzerland, https://doi.org/10.1007/978-94-007-2351-1, 2012. 
Baldocchi, D. D.: Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: past, present and future, Glob. Chang. Biol., 9, 479–492, 2003. 
Beswick, K. M., Gallagher, M. W., Webb, A. R., Norton, E. G., and Perry, F.: Application of the Aventech AIMMS20AQ airborne probe for turbulence measurements during the Convective Storm Initiation Project, Atmos. Chem. Phys., 8, 5449–5463, https://doi.org/10.5194/acp-8-5449-2008, 2008. 
Billesbach, D. P.: Estimating uncertainties in individual eddy covariance flux measurements: a comparison of methods and a proposed new method, Agric. For. Meteorol., 151, 394–405, 2011. 
Björkegren, A. and Grimmond, C. S. B.: Net carbon dioxide emissions from central London, Urban Clim., 23, 131–158, https://doi.org/10.1016/j.uclim.2016.10.002, 2018. 
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Short summary
Validating emissions estimates of atmospheric pollutants is a vital pathway towards reducing urban concentrations of air pollution and ensuring effective legislative controls are implemented. The work presented here highlights a strategy capable of quantifying and spatially disaggregating NOx emissions over challenging urban terrain. This work shows great scope as a tool for emission inventory validation and independent generation of high-resolution surface emissions on a city-wide scale.
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