http://bolin.su.se/data/oden-ao-2018-aerosol-ozone-1 Andrea Baccarini, Julia Schmale, Josef Dommen Bolin Centre Database 2020 Datafile Atmosphere Trace gases Atmospheric gas phase data AO2018 Arctic Ocean Icebreaker Oden Arctic Ocean 2018 Atmospheric Science Atmospheric Chemistry Atmospheric Physics Clouds Aerosol Science Microbiology-Ocean-Cloud-Coupling in the High Arctic MOCCHA High Arctic North Pole Aerosol-Cloud-Interaction 2018 Ozone Trace gas Tropospheric chemistry Earth science > Atmosphere Julia Schmale 2020-09-23T10:00:32+00:00 English 1 Raw data were collected at 1 Hz frequency and then averaged for 60 s in order to improve the signal to noise ratio. The datetime is reported as UTC in the format yyyy-mm-dd HH:MM:SS. Concentration is reported as a mixing ratio in parts per bilion. The instrument was calibrated after the campaign and the data were corrected for a baseline drift that affected the instrument. We used an Hampel type filter to remove outliers and spikes related with short-term instrument malfunction (e.g., flow variations). The last column in the dataset is a flag to separate between clean data and data that are potentially influenced by the ship exhaust: 1 indicates clean data and 2 contaminated data. 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/ao2018-navigation) data set. The data creator ORCID are the following: - Andrea Baccarini: https://orcid.org/0000-0003-4614-247X - Julia Schmale: https://orcid.org/0000-0002-1048-7962 - Josef Dommen: https://orcid.org/0000-0002-0006-0009 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).