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

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

doi:https://doi.org/10.5194/acp-16-10543-2016

Articles | Volume 16, issue 16

https://doi.org/10.5194/acp-16-10543-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-10543-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 16

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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Final revised paper (published on 24 Aug 2016)
Supplement to the final revised paper
Preprint (discussion started on 30 Mar 2016)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Solicited review of ``Helfter et al.: Spatial and temporal variability of urban fluxes of methane, carbon monoxide and carbon dioxide above London, UK.''', Anonymous Referee #1, 27 Apr 2016
RC2: 'Referee comment II', Anonymous Referee #2, 02 May 2016
RC3: 'Review of Helfter et al.', Anonymous Referee #3, 11 May 2016
AC1: 'Authors' response to reviewers' comments', Carole Helfter, 27 May 2016

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Carole Helfter on behalf of the Authors (27 May 2016) Author's response Manuscript

ED: Referee Nomination & Report Request started (08 Jun 2016) by Martin Heimann

RR by Anonymous Referee #3 (18 Jun 2016)

RR by Anonymous Referee #1 (21 Jun 2016)

ED: Reconsider after minor revisions (Editor review) (12 Jul 2016) by Martin Heimann

AR by Carole Helfter on behalf of the Authors (18 Jul 2016) Author's response Manuscript

ED: Publish as is (31 Jul 2016) by Martin Heimann

AR by Carole Helfter on behalf of the Authors (10 Aug 2016)

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Short summary

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.