Fig. 3: Correlation of glacier mass balance and active layer thickness in Artic permafrost regions.
From: Atmosphere circulation patterns synchronize pan-Arctic glacier melt and permafrost thaw

Correlation (lag zero) of the annual glacier mass balances from GRACE/GRACE-FO satellite gravimetry data with the mean active layer thickness from CCI permafrost data for the 2003–2019. Following our definition of the anomalies, glacier mass balance and active layer thickness in proximity are expected to be anti-correlated meaning that glacier mass gain correspond to low active layer thickness. The mean geographical coordinate of the glacier system is shown as circle for, a ALNO, b ALGO, c CANN, d CANS, e SVAL, f FRJO, g NOZE and h, SEZE. Areas of significance (p-value < 0.05), accounting for autocorrelation in both the GRACE/GRACE-FO and CCI data, are indicated by yellow dotted contours.