Supplement to: Batenburg, Anneke M; Popa, M Elena; Vermeulen, Alexander T; Van den Bulk, Willem CM; Jongejan, Piet AC; Fisher, Rebecca E; Lowry, David; Nisbet, Euan G; Röckmann, Thomas (2016): Observations of molecular hydrogen mixing ratio and stable isotopic composition at the Cabauw tall tower in the Netherlands. Atmospheric Environment, 147, 98-108, https://doi.org/10.1016/j.atmosenv.2016.09.058