Extended Data Table 1 Results of the two-sided t-test, performed to analyse differences between the Grand Combin 2018 (GC18) and 2020 (GC20) firn core annual data

From: High-altitude glacier archives lost due to climate change-related melting

  1. p-values indicate, if the annual means of δ18O and the concentrations of NH4+, NO3- and SO42− are significantly different at the 95% confidence level (p-value < 0.05, bold). For the number of samples per year (n-values), see figure caption Extended Data Fig. 3.
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