Extended Data Fig. 7: Extended time series of geochemical measurements from the LG proglacial river.
From: Greenland melt drives continuous export of methane from the ice-sheet bed

a–d, The EC, pH and SSC time series include those depicted in Fig. 1 but extend to measurements before and after the methane record. It should be noted that the CH4(aq) data in c are the HydroC partial pressure (in microatmospheres) measurements. Left and right vertical axes correspond to black and orange datasets, respectively.