Figure 2
(A) Time evolution of the Eurasian Ice Sheet area in GBvol (red line) and PBvol (blue line) simulations. The Eurasian Ice Sheet area evolution during the deglaciation based on the DATED-1 reconstruction1 is indicated in dashed grey (maximum credibility) and shaded black (minimum and maximum credibility, respectively). Red/blue shades in the background highlight periods of warm/cold annual mean air temperature prescribed in the ISM simulations. (B) Mean annual air temperature indexes used to interpolate between LGM and Pre-Industrial (1850 a.d., PI) climate conditions in the ISM simulations (Material and Methods), based on the Trace-21ka fully coupled transient simulation22. Red/blue shades in the background highlight periods of warm/cold annual mean air temperature prescribed in the ISM simulations. (C) Time evolution of the Barents Sea grounded ice area in GBvol (red line) and PBvol (blue line) simulations. (D) Indexes for the annual mean ocean temperature in the South-western Barents Sea at 400 m depth (dark blue line) used to interpolate between LGM and PI ocean conditions and for the regional sea level (dark yellow line). The ocean temperature index is based on the Trace-21ka fully coupled transient simulation22, whereas the regional sea level index is based on the NGRIP δ 18 O record29. Red/blue shades highlight periods of warm/cold annual mean ocean temperature (400 m depth) and high/low global sea level prescribed in the ISM simulations. (E) Simulated extent of the Eurasian Ice Sheet in GBvol (red line, top panels) and PBvol (blue line, bottom panels) simulations at different time slices (21, 18, 15, 14 and 12 ky BP). The Eurasian Ice Sheet extent based on the DATED-1 reconstruction1 is shown in each panel in orange for comparison.
