Fig. 3: Results of cores 11GC (JR142-11GC) and 06GC (HH15-06GC) in the context of other studies.
From: Seasonal sea ice persisted through the Holocene Thermal Maximum at 80°N

a Biomarker-based spring sea-ice concentrations (SpSIC %), and b Marginal Ice Zone condition (HBI T25) reconstructions are shown along with results on benthic foraminiferal stable isotopes of: c oxygen (δ18O), and d carbon (δ13C). Results of other relevant studies include insolation values16 for 80 °N in terms of: e annual, and f monthly (May, June) means (in W m−2). g Annual mean sea ice thicknesses for the Arctic Ocean from model simulations using dynamic surface albedo parameterization (normal simulation)15. h Percentage Svalbard glacier cover25.