Fig. 3: Surface mass balance response to atmospheric temperature anomalies.
From: Poleward shift of subtropical highs drives Patagonian glacier mass loss
Correlation between (a) surface mass balance (SMB) and surface runoff, (b) SMB and total precipitation, (c) surface runoff and anomalies in glacier near-surface temperature (T2m), (d) anomalies in near-surface temperature and anomalies in 850 hPa atmospheric temperature (T850). Anomalies are estimated relative to the 1960-1989 period. MAR and RACMO data at 500 m are shown as blue and green dots respectively. For T2m, model data at 500 m are spatially averaged over glacier-covered grid-cells. Linear regression and relevant statistics, i.e., number of records (N), slope (a), intercept (b), and correlation (r), include both MAR (84 years) and RACMO (45 years) data sets. T850 data are retrieved from ERA5 reanalysis27 within the yellow contour extracted for MAR and RACMO in Supplementary Fig. 8a, c, respectively. The MAR-derived yellow contour is also displayed in Fig. 5a, b.
