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. 2024 Oct 31;11:1185. doi: 10.1038/s41597-024-04038-w

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.

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Fig. 1 — Temporal analysis of DMSP sea-ice core data in this dataset. The boxplot shows the range of DMSP concentrations for all depth-integrated ice cores against the month in which they were collected. Boxes represent the interquartile range of DMSP concentrations, with lower and upper whiskers showing the nonoutlier minima and maxima, respectively, red lines showing the medians, and the symbol (+) representing the outliers. The thin grey horizontal line marks the DMSP values at 0. Months with insufficient data points are plotted with dots. Sample size for each month is shown as N.