Fig. 3: Monthly mass change of the Greenland Ice Sheet for the year 2019 and average rates for the years 2003 to 2016.
From: Return to rapid ice loss in Greenland and record loss in 2019 detected by the GRACE-FO satellites
Shown are monthly mass changes for GRACE-FO (black, with 2-σ error bars) and SMB-D* (light violet: MARv3.10; dark violet RACMO2.3p2) from January to September 2019, along with the seasonal climatology from GRACE for 2003–2016. A positive mass change represents accumulation; a negative mass change indicates ablation. July 2019 ranks as the summer month with the second largest mass loss recorded by GRACE/GRACE-FO (red dots), exceeded only by 2012, and followed by 2010. Because of gaps in the GRACE/GRACE-FO record of mass change, July mass changes are known for 2004 through 2010, 2012, 2016, and 2019 (13 years in total).
