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Distributions, sources, and transformations of dissolved and particulate iron on the R oss S ea continental shelf during summer
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2017
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Source: Journal of Geophysical Research: Oceans, 122(8), 6371-6393
[PDF-4.08 MB]
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Journal Title:Journal of Geophysical Research: Oceans
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Description:We report water column dissolved iron (dFe) and particulate iron (pFe) concentrations from 50 stations sampled across the Ross Sea during austral summer (January–February) of 2012. Concentrations of dFe and pFe were measured in each of the major Ross Sea water masses, including the Ice Shelf Water and off-shelf Circumpolar Deep Water. Despite significant lateral variations in hydrography, macronutrientdepletion, and primary productivity across several different regions on the continental shelf, dFe concentrations were consistently low ( <0.1 nM) in surface waters, with only a handful of stations showing elevated concentrations (0.20–0.45 nM) in areas of melting sea ice and near the Franklin Island platform.Across the study region, pFe associated with suspended biogenic material approximately doubled the inventory of bioavailable iron in surface waters. Our data reveal that the majority of the summertime iron
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Source:Journal of Geophysical Research: Oceans, 122(8), 6371-6393
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ISSN:2169-9275;2169-9291;
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Rights Information:Other
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