http://bolin.su.se/data/oden-ao-2018-cloud-water-1 Julika Zinke, Emmy Nilsson, Luisa Ickes, Matthew Salter, Caroline Leck, Michael J. Lawler, Grace Porter, Michael Adams, Ian Brooks, Ben Murray, Paul Zieger Bolin Centre Database 2021 Datafile Atmosphere Aerosols Cloud and fog biology and chemistry Inorganic and organic composition Ice-nucleating particles Arctic Ocean AO2018 Icebreaker Oden Earth science > Atmosphere > Clouds Paul Zieger 2021-03-31T12:59:34+00:00 English 1 Data are included in three xlsx spreadsheet files separated according to analysis methods. There is also one xlsx file containing the sampling coordinates. ###### Ice-nucleating activity (INP) The INP file contains frozen fraction and INP concentration per litre of cloud water at respective temperatures. ###### Ion chromatography (IC) The IC file contains concentrations of inorganic ions obtained from ion chromatography. ###### Thermal desorption chemical ionization mass spectrometry (TDCIMS) The TDCIMS file contains ion counts for inorganic and organic compounds obtained from thermal desorption mass spectrometry. The good-ion column indicates if the signal is trustworthy and above the blank value. More details are given in the corresponding peer-reviewed reference. Photos and more material on the cloud water sampler can be found at the [MOCCHA](https://www.aces.su.se/research/projects/microbiology-ocean-cloud-coupling-in-the-high-arctic-moccha/) project website, managed by the Department of Environmental Science, Stockholm University. 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 scientists' contributions to the analyses are as follows: * Ice-nucleating activity: Grace Porter, Michael Adams, Ben Murray * Ion chromatography: Emmy Nilsson, Julika Zinke, Luisa Ickes, Caroline Leck * Thermal desorption chemical ionization mass spectrometry: Michael J. Lawler We are grateful to the Swedish Polar Research Secretariat logistical staff and to Oden’s Captain Mattias Peterson and his crew. We thank Leif Bäcklin for his invaluable help in the construction of the instrument. We thank all helpers in the field, particularly Luisa Ickes and Karolina Siegel, for their invaluable assistance and help. Linn Karlsson is thanked for providing the data acquisition software.