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The organic complexation of dissolved iron (DFe) was assessed in 5 snow, 34 sea ice, 12 brine and 24 under-ice seawater samples collected during a 22day time series in the East Antarctic sector in austral summer 2009. Similar to seawater, over 99% of DFe was bound to organic ligands in snow, sea ice and brines throughout the study. Dissolved organic ligand and Fe concentrations were higher in the...