Figure 3

MIZ model. (a) Simulated volume fraction of ice (\(\psi\)) averaged by month over years 2000–2004. Magenta circles and whiskers indicate the MIZ location and width, respectively, both diagnosed from the model output. Dashed yellow curves are corresponding sea ice thicknesses from GLORYS2V4, and the solid yellow curve on the March panel is sea ice thickness from ICESAT for spring 2004. (b) Mean observed MIZ location (black curve), interquartile range of simulated MIZ location (IQR, gray shading), and mean simulated MIZ location (blue curve). (c) Mean sea ice thickness from GLORYS2V4 (black curve), IQR of simulated thickness of dense sea ice (\(\psi >0.8\); gray shading), and mean simulated thickness of dense sea ice (blue curve). (d) Mean observed MIZ width (black curve), IQR of simulated MIZ width (gray shading), and mean simulated MIZ width (blue curve).