Extended Data Fig. 3: Most models exhibit crossover but at varying levels of atmospheric CO2. | Nature

Extended Data Fig. 3: Most models exhibit crossover but at varying levels of atmospheric CO2.

From: Arctic Ocean annual high in \({{\boldsymbol{p}}}_{{{\bf{CO}}}_{{\bf{2}}}}\) could shift from winter to summer

Extended Data Fig. 3

Evolution of timing of annual highs and lows in \({p}_{{{\rm{CO}}}_{2}}\) averaged over the Arctic domain, combining historical and high-end scenarios. Columns are for the a, c, annual low and b,d, annual high; rows are for a, b, CMIP5 RCP8.5 and c, d, CMIP6 SSP5-8.5 models. In c, IPSL-CM6A-LR and MRI-ESM2-0 are not shown due to noise from averaging over a broad minimum spanning January (Dec-Mar). Plot characteristics are as in Fig. 3. Italic model labels indicate thin lines. Red points are the observation-based product for \({p}_{{{\rm{CO}}}_{2}}\). Small circles mark the end of decades (2100, 2090, 2080 ...), but 2090 is reached in SSP5-8.5 at the 1000-ppm limit of the plot domain.

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