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

Show simple item record Riddick, Stuart N. Connors, Sarah Robinson, Andrew D. Manning, Alistair J. Jones, Pippa S. D. Lowry, David Nisbet, Euan Skelton, Robert L. Allen, Grant Pitt, Joseph Harris, Neil R. P. 2017-09-21T09:41:58Z 2017-09-21T09:41:58Z 2017-06-29
dc.identifier.citation Riddick 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. 7839-7851 en_UK
dc.identifier.issn 1680-7316
dc.description.abstract High 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.language.iso en en_UK
dc.publisher European Geosciences Union (EGU) / Copernicus Publications en_UK
dc.rights Attribution 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.title Estimating the size of a methane emission point source at different scales: from local to landscape en_UK
dc.type Article en_UK

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search CERES


My Account