Amina Okafor
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A sea-ice pixel is not a habitat map
Identical ice concentrations can conceal different floes, openings, and feeding opportunities. Habitat interpretation needs geometry, seabed context, compatible dates, and evidence of what animals actually use.
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The warmth beneath the Arctic surface
Atlantic-origin warmth can sit below cold surface water. Density layers, currents, and mixing determine when stored ocean heat becomes heat delivered to sea ice.
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The bloom can begin before open water
Under-ice blooms complicate the seasonal calendar. Light transmission, nutrients, consumer timing, and satellite blind spots explain why open water is not the food web’s starting gun.
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Measuring a glacier in footsteps
Ablation stakes, mass balance, the 2025 Greenland result, and the patient work of repeated measurement.