Supplement to: Capron, Emilie; Landais, Amaëlle; Lemieux-Dudon, Bénédicte; Schilt, Adrian; Masson-Delmotte, Valerie; Buiron, Daphné; Chappellaz, Jérôme A; Dahl-Jensen, Dorthe; Johnsen, Sigfús Jóhann; Leuenberger, Markus Christian; Loulergue, Laetitia; Oerter, Hans (2010): Synchronising EDML and NorthGRIP ice cores using d18O of atmospheric oxygen (d18Oatm) and CH4 measurements over MIS5 (80-123 kyr). Quaternary Science Reviews, 29(1-2), 222-234, https://doi.org/10.1016/j.quascirev.2009.07.014