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. 2020 Aug 31;378(2181):20190368. doi: 10.1098/rsta.2019.0368

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© 2020 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 3. — Vertical flux patterns (µg m⁻² d⁻¹) of particulate matter, left panels: brassicasterol (24-methylcholesta-5, 22E-dien-3β-ol), campesterol (24-methylcholest-5-en-3β-ol) plus β-sitosterol (24-ethylcholest-5-en-3β-ol), and right panels: IP₂₅ at the two mooring sites in the Nansen (upper panels) and Amundsen (lower panels) Basins close to the Gakkel Ridge with an indication of sea ice and snow cover during September 2011 until August 2012 (% ice concentration like in figure 2, on top of each panel). (Note the difference in y-axis for brassicasterol, campesterol and β-sitosterol in the Nansen and Amundsen traps.) (Online version in colour.)