Measurements of δ13C in CH4 and using particle dispersion modeling to characterize sources of Arctic methane within an air mass

James L. France, Michelle Cain, Rebecca E. Fisher, David Lowry, Grant Allen, Sebastian J. O'Shea, Samuel M. Illingworth, John Adrian Pyle, Nicola J. Warwick, Benjamin T. Jones, Martin W. Gallagher, Keith N. Bower, Michael Le Breton, Carl John Percival, Jennifer Muller, A. Welpott, Stéphane Jean-Bernard Bauguitte, Charles T. George, Garry D. Hayman, Alistair J. Manning, Cathrine Lund Myhre, Mathias E. Lanoisellé, Euan G. Nisbet