Fig. 2: Simplified carbon and nitrogen budgets for the AO. | Nature Climate Change

Fig. 2: Simplified carbon and nitrogen budgets for the AO.

From: Climate change and terrigenous inputs decrease the efficiency of the future Arctic Ocean’s biological carbon pump

Fig. 2

a,b, Budgets for carbon (a) and nitrogen (b). Absolute quantities are expressed in carbon (TgC yr−1) and nitrogen (TgN yr−1) and refer to the baseline simulation Terr (with terrigenous inputs) by the end of the century (2090s). Relative contributions (%) of climate change (2090s relative to 1970s, with Terr, SSP3-7.0 emission scenario) and terrigenous inputs (Terr relative to NoTerr in the 2090s) are shown in pink and orange, respectively. The scenario uncertainty (SSP3-7.0 relative to SSP1-2.6 in the 2090s) is indicated in black. Phytoplankton losses encompass excretion and aggregation. Zooplankton losses encompass mortality, excretion, sloppy feeding and faecal loss. Horizontal arrows on the right represent transport with the adjacent seas. DIC, dissolved inorganic carbon; OC, organic carbon; DIN, dissolved inorganic nitrogen; ON, organic nitrogen. Detrital organic matter encompasses both dissolved and particulate non-planktonic (detritus) pools.

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