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. 2020 Oct 1;11:4834. doi: 10.1038/s41467-020-18424-6

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — a A time series of depositional ice nucleating particle (INP) concentration (–46 °C; S_ice = 1.3) and averages of total aerosol concentration and aerosol non-refractory organic mass fraction during INP sampling. Each datapoint represents the average ambient INP concentration over 10 min of measurement. Overlain box plots indicate the median, 25th and 75th percentiles, and upper and lower bounds of INP concentrations for each day. Shaded regions correspond to periods of INP measurements. b Average ambient submicron aerosol size distributions during INP measurements each day. Shading indicates a standard deviation of concentration variability. c Daily average depositional INP derived diameters. The illustrated range is a standard deviation of uncertainty derived from variability in the size dependence of the aerosol concentrator enrichment factor⁶⁶.