Fig. 3
From: Instability of the Northeast Greenland Ice Stream over the last 45,000 years
Ice and climate fluctuations of the Northeast Greenland Ice Stream for the last 45 kyr. a Reconstruction of ice-margin fluctuations based on b 10Be ages with external uncertainties from outer coast (dark gray) and outside the Little Ice Age moraine (black), and 14C dates from raised marine deposits presently dammed by NEGIS up to 70 km upstream the present ice margin at NG; Blåsø (blue)27 and Midgaardsormen (pink)27, and 14C dates of reworked shells in Little Ice Age moraines at Søndre Mellemland (green)27, and at SG (orange)28. Vertical gray bars are the mean and standard error of the outer (older) and inner (younger) 10Be ages with the production rate uncertainty included. Vertical light blue bars are when the NEGIS is smaller than present. c Reconstructed summer temperature (pink) with RCP 2.6 (light blue), 4.5 (blue), and 8.5 scenarios (dark blue) at 79°N31 and a summer temperatures reconstruction (magenta) based on a multiple-regression method (see Methods). d–f Orbital parameters and summer insolation at 79°N. g Accumulation rate at NEEM36. h Ice core δ18O record from NGRIP72
