Articles | Volume 16, issue 21
https://doi.org/10.5194/acp-16-13669-2016
https://doi.org/10.5194/acp-16-13669-2016
Research article
 | 
03 Nov 2016
Research article |  | 03 Nov 2016

Carbon isotopic signature of coal-derived methane emissions to the atmosphere: from coalification to alteration

Giulia Zazzeri, Dave Lowry, Rebecca E. Fisher, James L. France, Mathias Lanoisellé, Bryce F. J. Kelly, Jaroslaw M. Necki, Charlotte P. Iverach, Elisa Ginty, Miroslaw Zimnoch, Alina Jasek, and Euan G. Nisbet

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Short summary
Methane emissions estimates from the coal sector are highly uncertain. Precise δ13C isotopic signatures of methane sources can be used in atmospheric models for a methane budget assessment. Emissions from both underground and opencast coal mines in the UK, Australia and Poland were sampled and isotopically characterised using high-precision measurements of δ13C values. Representative isotopic signatures were provided, taking into account specific ranks of coal and mine type.
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