Coarse-mode particle number size distribution data collected during the Arctic Ocean 2018 expedition

http://bolin.su.se/data/oden-ao-2018-aerosol-coarse-1 Paul Zieger, Linn Karlsson Coarse-mode particle number size distribution data collected during the Arctic Ocean 2018 expedition Bolin Centre Database 2022 Datafile Atmosphere Aerosols Aerosol physical properties Coarse mode particles Particle size distribution Aerosols Arctic Arctic Ocean Arctic Ocean 2018 AO2018 AO18 MOCCHA Icebreaker Oden Earth science > Atmosphere > Aerosols Paul Zieger 2022-03-07T08:08:39+00:00 English 1 The data is provided in one comma-separated values (csv) file (82.5 MB). - Row 1: Optical diameter (m) for columns 2 – ⁠60 - Row 2 until end at row 429843: - Column 1: Time (UTC), month/day/year HH:MM - Column 2 – ⁠60: Number concentration, dN/dlogD per cubic centimetre at bin midpoint diameters. All data is corrected for particle losses assuming a particle density of 1.5 g/cm³. The instrument was calibrated according to the manufacturer's guidelines using MonoDust 1500. Note that periods with the possible influence of ship pollution are included as reliable data and are not removed. Measurements were performed at dry conditions (RH < 30%). Please not that the WELAS counting efficiency is lower for the first diameter bins (see e.g. Rosati et al, 2015). Data were collected during the Arctic Ocean 2018 expedition on board the Swedish icebreaker (I/B) Oden, which was organized by the [Swedish Polar Research Secretariat](https://polarforskningsportalen.se/en/arctic/expeditions/arctic-ocean-2018). The observations were part of the project *Aerosol-cloud interactions in the High Arctic* (PI Paul Zieger, Department of Environmental Science, Stockholm University). See [MOCCHA project website](https://www.aces.su.se/research/projects/microbiology-ocean-cloud-coupling-in-the-high-arctic-moccha/) with updates. The ship track with latitude and longitude information can be found in the [Navigation, meteorological and surface seawater data from the Arctic Ocean 2018 expedition](https://bolin.su.se/data/oden-ao-2018-navigation-1) data set. The data creators have ORCID accounts: - [Paul Zieger](https://orcid.org/0000-0001-7000-6879) - [Linn Karlsson](https://orcid.org/0000-0003-0885-7650)