Atmospheric observations consistent with reported decline in the UK's methane emissions (2013–2020)

Lunt, Mark F.; Manning, Alistair J.; Allen, Grant; Arnold, Tim; Bauguitte, Stéphane J.-B.; Boesch, Hartmut; Ganesan, Anita L.; Grant, Aoife; Helfter, Carole; Nemitz, Eiko; O'Doherty, Simon J.; Palmer, Paul I.; Pitt, Joseph R.; Rennick, Chris; Say, Daniel; Stanley, Kieran M.; Stavert, Ann R.; Young, Dickon; Rigby, Matt

doi:https://doi.org/10.5194/acp-21-16257-2021

Articles | Volume 21, issue 21

https://doi.org/10.5194/acp-21-16257-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-16257-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 21

Research article

|

05 Nov 2021

Research article |

| 05 Nov 2021

Atmospheric observations consistent with reported decline in the UK's methane emissions (2013–2020)

Mark F. Lunt, Alistair J. Manning, Grant Allen, Tim Arnold, Stéphane J.-B. Bauguitte, Hartmut Boesch, Anita L. Ganesan, Aoife Grant, Carole Helfter, Eiko Nemitz, Simon J. O'Doherty, Paul I. Palmer, Joseph R. Pitt, Chris Rennick, Daniel Say, Kieran M. Stanley, Ann R. Stavert, Dickon Young, and Matt Rigby

Supplement

https://doi.org/10.5194/acp-21-16257-2021-supplement

Data sets

UK DECC (Deriving Emissions linked to Climate Change) Network S. O'Doherty, S. and D. Say http://catalogue.ceda.ac.uk/uuid/f5b38d1654d84b03ba79060746541e4f

The ALE/GAGE/AGAGE Network (DB 1001) R. G. Prinn, R. F. Weiss, J. Arduini, T. Arnold, P. J. Fraser, A. L. Ganesan, J. Gasore, C. M. Harth, O. Hermansen, J. Kim, P. B. Krummel, S. Li, Z. M. Loh, C. R. Lunder, M. Maione, A. J. Manning, B. R. Miller, B. Mitrevski, J. Mühle, S. O'Doherty, S. Park, S. Reimann, M. Rigby, P. K. Salameh, R. Schmidt, P. G. Simmonds, L. P. Steele, M. K. Vollmer, R. H. Wang, and D. Young https://doi.org/10.3334/CDIAC/atg.db1001

GAUGE (Greenhouse gAs UK and Global Emissions) project: Ground based and airborne atmospheric measurement data collection GAUGE project team http://catalogue.ceda.ac.uk/uuid/9a1295858ff14fc6acea73e356a8842c

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Short summary

We present an evaluation of the UK's methane emissions between 2013 and 2020 using a network of tall tower measurement sites. We find emissions that are consistent in both magnitude and trend with the UK's reported emissions, with a declining trend driven by a decrease in emissions from England. The impact of various components of the modelling set-up on these findings are explored through a number of sensitivity studies.