Fig. 5: Thresholds and rates of ice sheet change. | Nature Communications

Fig. 5: Thresholds and rates of ice sheet change.

From: Geologically constrained 2-million-year-long simulations of Antarctic Ice Sheet retreat and expansion through the Pliocene

Fig. 5

Each point represents one time slice throughout the simulation (best-fit run OC2-HFmedlo-area), with color and size of the plotted points representing the rate of ice sheet change (in m sea-level equivalent/kyr) at each timestep. Ice sheet deglaciation rates (red) are much faster than growth rates (blue) for both the (a) total Antarctic Ice Sheet and b West Antarctic Ice Sheet. The subsurface ocean temperature scaling to the ice sheet model (δTo) is calculated at every timestep using the model matrix weighting scheme, which considers variations in CO2, insolation, and ice sheet configuration (Supplementary Fig. S7).

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