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Seasonal Dynamics of Dissolved Iron on the Antarctic Continental Shelf: Late‐Fall Observations From the Terra Nova Bay and Ross Ice Shelf Polynyas
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2022
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Source: Journal of Geophysical Research: Oceans, 127(10)
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Journal Title:Journal of Geophysical Research: Oceans
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Description:Over the Ross Sea shelf, annual primary production is limited by dissolved iron (DFe) supply. Here, a major source of DFe to surface waters is thought to be vertical resupply from the benthos, which is assumed most prevalent during winter months when katabatic winds drive sea ice formation and convective overturn in coastal polynyas, although the impact of these processes on water-column DFe distributions has not been previously documented. We collected hydrographic data and water-column samples for trace metals analysis in the Terra Nova Bay and Ross Ice Shelf polynyas during April–May 2017 (late austral fall). In the Terra Nova Bay polynya, we observed intense katabatic wind events, and surface mixed layer depths varied
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Source:Journal of Geophysical Research: Oceans, 127(10)
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ISSN:2169-9275;2169-9291;
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Rights Information:CC BY-NC-ND
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Compliance:Library
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