Supplement to: Römer, Miriam; Riedel, Michael; Scherwath, Martin; Heesemann, Martin; Spence, George D (2016): Tidally controlled gas bubble emissions: A comprehensive study using long-term monitoring data from the NEPTUNE cabled observatory offshore Vancouver Island. Geochemistry, Geophysics, Geosystems, 17(9), 3797-3814, https://doi.org/10.1002/2016GC006528