Fig. 5: Annual mass balances and driving components of the GrIS.
From: Return to rapid ice loss in Greenland and record loss in 2019 detected by the GRACE-FO satellites
Shown are annual mass balances from SMB-D* (1948–2019; 2017 & 2018 mean also indicated; MARv3.10) and GRACE/GRACE-FO (2003-2019, only mean for 2017 & 2018 indicated), along with the primary components of inflow (accumulation) and outflow (meltwater runoff + discharge). The size of the filled circles, colour-coded by year, indicates SMB-D*, and the marginal ring estimates from GRACE/GRACE-FO. The diagonal line indicates balance conditions for the GrIS, years with mass gain fall into the grey shaded area. Dashed grey lines indicate the imbalance state of the GrIS, represented as the ratio of the mass balance versus annual inflow through accumulation (%). Near balance years (<±50 Gt year−1) are indicated by crosses.
