Articles | Volume 16, issue 16
https://doi.org/10.5194/acp-16-10543-2016
https://doi.org/10.5194/acp-16-10543-2016
Research article
 | 
24 Aug 2016
Research article |  | 24 Aug 2016

Spatial and temporal variability of urban fluxes of methane, carbon monoxide and carbon dioxide above London, UK

Carole Helfter, Anja H. Tremper, Christoforos H. Halios, Simone Kotthaus, Alex Bjorkegren, C. Sue B. Grimmond, Janet F. Barlow, and Eiko Nemitz

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Cited articles

ARB (Air Resources Board): California Environment Protection Agency, available at: http://www.arb.ca.gov/ei/ei.htm, last access: 1 March 2016.
Andrews, G. E., Zhu, G., Li, H., Simpson, A., Wylie, J. A., Bell, M., and Tate, J.: The effect of ambient temperature on cold start urban traffic emissions for a real world SI car, Proceedings of SAE 2004 Powertrain & Fluid Systems Conference and Exhibition Tampa, FL, USA, 2004.
Baldocchi, D.: Breathing of the terrestrial biosphere: Lessons learned from a global network of carbon dioxide flux measurement systems, Aust. J. Bot., 56, 1–26, https://doi.org/10.1071/bt07151, 2008.
Baldocchi, D., Falge, E., Gu, L. H., Olson, R., Hollinger, D., Running, S., Anthoni, P., Bernhofer, C., Davis, K., Evans, R., Fuentes, J., Goldstein, A., Katul, G., Law, B., Lee, X. H., Malhi, Y., Meyers, T., Munger, W., Oechel, W., U, K. T. P., Pilegaard, K., Schmid, H. P., Valentini, R., Verma, S., Vesala, T., Wilson, K., and Wofsy, S.: Fluxnet: A new tool to study the temporal and spatial variability of ecosystem-scale carbon dioxide, water vapor, and energy flux densities, B. Am. Meteorol. Soc., 82, 2415–2434, https://doi.org/10.1175/1520-0477(2001)082<2415:fantts>2.3.co;2, 2001.
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There are relatively few long-term, direct measurements of pollutant emissions in urban settings. We present over 3 years of measurements of fluxes of CO, CO2 and CH4, study their respective temporal and spatial dynamics and offer an independent verification of the London Atmospheric Emissions Inventory. CO and CO2 were strongly controlled by traffic and well characterised by the inventory whilst measured CH4 was two-fold larger and linked to natural gas usage and perhaps biogenic sources.
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