Fig. 1: Calculating the T2m threshold to reach MOA = 0.7.
From: Variable temperature thresholds of melt pond formation on Antarctic ice shelves
a,b, Annual ice shelf average surface melt rate (filled dots) and accumulation (open dots) for R-ERA5 (black), R-HIST (blue), R-126 (green), R-245 (yellow) and R-585 (red) (in mm w.e. per year) as a function of T2m for cold (contemporary (1979–2021, R-ERA5) T2m < −15 °C) and dry (contemporary accumulation (A) < 500 mm w.e. per year) (a) and mild (T2m > −15 °C) and wet (A > 500 mm w.e. per year) (b) climatic conditions. The selected climatic thresholds are medians—that is, just as many ice shelves fall in the cold and dry as in the wet and mild category. The resulting fits of melt and accumulation are shown by solid lines, their upper and lower uncertainty (±1σ) are shown by dashed lines, and the resulting TT ± dTT is shown in the lower right corner. The vertical dashed line represents the MOA = 0.7 intersection at T2m = TT. See the Methods for more details.
