http://bolin.su.se/data/oden-ao-2018-aerosol-ams-1 Lubna Dada, Julia Schmale, Kaspar Daellenbach, Andrea Baccarini Bolin Centre Database 2022 Datafile Atmosphere Aerosols Aerosol chemical properties Aerosol chemical composition High Arctic Arctic Arctic Ocean Arctic Ocean 2018 AO18 AO2018 Icebreaker Oden Earth science > Atmosphere > Aerosols Julia Schmale 2022-04-08T14:04:49+00:00 English 1 The data are provide in one semicolon-separated values (csv) file with 12 columns, which contains the mass concentrations of the five main species as time series. Columns: - YYYY: four-digit year - m: month - d: day - HH: hour - MM: minute - SS: seconds - SO4: particulate sulfate - NO3: particulate nitrate - NH4: particulate ammonium - Chl: particulate chloride where the background from the filter period is subtracted - Org: particulate organics - flag: flag with 1 = good. The flag is explained in a readme file. 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).