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Figure 3.

$Properties shown for surface waters (2–10 m depth) are: salinity (A); temperature (B); mixed layer depth (MLD), the depth where density σt increased 0.02 from surface waters (C); EUML, mean light in the upper mixed layer (D); dissolved Fe (DFe) concentrations in surface water (data from Sherrell et al., 2015) (E); particulate Fe (PFe) concentrations in surface waters (data from Harazin et al., 2014) (F); chlorophyll (Chl) a concentrations (G); depth-integrated Chl a (H); fraction of phytoplankton community as Phaeocystis antarctica (I); and fraction of phytoplankton community as diatoms (J). In each panel, the dashed line shows the sea ice edge on 1 January 2011 and the Getz Ice Shelf (GIS) and Dotson Ice Shelf (DIS) are shown in white.$

Surface water properties in the Amundsen Sea Polynya.

Properties shown for surface waters (2–10 m depth) are: salinity (A); temperature (B); mixed layer depth (MLD), the depth where density σ_t increased 0.02 from surface waters (C); E_UML, mean light in the upper mixed layer (D); dissolved Fe (DFe) concentrations in surface water (data from Sherrell et al., 2015) (E); particulate Fe (PFe) concentrations in surface waters (data from Harazin et al., 2014) (F); chlorophyll (Chl) a concentrations (G); depth-integrated Chl a (H); fraction of phytoplankton community as Phaeocystis antarctica (I); and fraction of phytoplankton community as diatoms (J). In each panel, the dashed line shows the sea ice edge on 1 January 2011 and the Getz Ice Shelf (GIS) and Dotson Ice Shelf (DIS) are shown in white.

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