Estimating the size of a methane emission point source at different scales: from local to landscape

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dc.contributor.authorRiddick, Stuart N.
dc.contributor.authorConnors, Sarah
dc.contributor.authorRobinson, Andrew D.
dc.contributor.authorManning, Alistair J.
dc.contributor.authorJones, Pippa S. D.
dc.contributor.authorLowry, David
dc.contributor.authorNisbet, Euan
dc.contributor.authorSkelton, Robert L.
dc.contributor.authorAllen, Grant
dc.contributor.authorPitt, Joseph
dc.contributor.authorHarris, Neil R. P.
dc.date.accessioned2017-09-21T09:41:58Z
dc.date.available2017-09-21T09:41:58Z
dc.date.issued2017-06-29
dc.description.abstractHigh methane (CH4) mixing ratios (up to 4 ppm) have occurred sporadically at our measurement site in Haddenham, Cambridgeshire, since July 2012. Isotopic measurements and back trajectories show that the source is the Waterbeach Waste Management Park 7 km SE of Haddenham. To investigate this further, measurements were made on 30 June and 1 July 2015 at other locations nearer to the source. Landfill emissions have been estimated using three different approaches at different scales; near source using the WindTrax inversion dispersion model, middle distance using a Gaussian plume (GP) model and at the landscape scale using the Numerical Atmospheric Modelling Environment (NAME) Inversion Technique for Emission Modelling (InTEM) inversion. The emission estimates derived using the WindTrax and Gaussian plume (GP) approaches agree well for the period of intense observations. Applying the Gaussian plume approach to all periods of elevated measurements seen at Haddenham produces year-round and monthly landfill emission estimates with an estimated annual emission of 11.6 GgCH(4) yr(-1). The monthly emission estimates are highest in winter (2160 kg h(-1) in February) and lowest in summer (620 kg h(-1) in July). These data identify the effects of environmental conditions on landfill CH4 production and highlight the importance of year-round measurements to capture seasonal variability in CH4 emission.en_UK
dc.identifier.citationRiddick SN, Connors S, Robinson AD, Manning AJ, Jones PSD, Lowry D, Nisbet E, Skelton RL, Allen G, Pitt J, Harris NRP, Estimating the size of a methane emission point source at different scales: from local to landscape, Atmospheric Chemistry and Physics, Vol. 17, 2017, pp. 7839-7851en_UK
dc.identifier.issn1680-7316
dc.identifier.urihttp://dx.doi.org/10.5194/acp-17-7839-2017
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/12529
dc.language.isoenen_UK
dc.publisherEuropean Geosciences Union (EGU) / Copernicus Publicationsen_UK
dc.rightsAttribution 4.0 International (CC BY 4.0) You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.titleEstimating the size of a methane emission point source at different scales: from local to landscapeen_UK
dc.typeArticleen_UK

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