Extended Data Fig. 2: Major ion concentrations of the Grand Combin 2018 (GC18) and 2020 (GC20) firn cores displayed on a logarithmic scale.
From: High-altitude glacier archives lost due to climate change-related melting
Comparisons of the records from the two sites on a logarithmic scale is shown to highlight the long-term trends of the concentrations of a) NH4+, b) NO3−, and c) SO42−.
