Fig. 4: Links between Antarctic surface meltwater and climate for the EAIS and AP.
From: Continent-wide mapping shows increasing sensitivity of East Antarctica to meltwater ponding
a, Significant (P < 0.05) negative relationship (linear regression) between surface meltwater area and the summer SAM index for the EAIS (black dots, with grey bars extending to observed meltwater area), with regression (black line) shown (P = 0.02). b, Surface meltwater area anomalies across the EAIS in years with summer SAM < 0.7, showing widespread positive anomalies of >50%. c, Significant negative relationship between surface meltwater and ASL RCP on the AP (P = 0.001). The melt seasons of three distinct outliers with higher-than-expected surface meltwater are labelled. d, High percentage surface meltwater anomalies on the AP during years with ASL RCP <−8 (deep ASL years). Ice-sheet and ice-shelf boundaries in b and d from ref. 56.
