[{"name":"oden-ao-2018-ccnc-1","title":"Cloud condensation nuclei (CCN) concentration during the Arctic Ocean 2018 expedition","summary":"Measurements of cloud condensation nuclei concentrations in the whole-air sampling inlet (WAI) and the cloud residuals inlet (CVI), using two Cloud Condensation Nuclei Counters (CCNC, Droplet Measurement Technologies, CCN-100). The instruments were calibrated before and after the campaign using ammonium sulfate, and the supersaturation was adjusted accordingly.\r\n\r\nThis dataset is highly valuable to estimate the hygroscopicity of ambient aerosols and droplet residuals. It can also be used to estimate the maximum supersaturation during cloud formation.\r\n\r\nMeasurements were performed on the 4th deck of icebreaker Oden during August and September 2018 along the track of the expedition. The instruments scanned through five supersaturation settings of nominal values from 0.1% to 1%. Concentrations are reported as droplets per cubic centimetre, at a 12-minute time resolution (one value per supersaturation per hour).","citations":"Rose, D., Gunthe, S. S., Mikhailov, E., Frank, G. P., Dusek, U., Andreae, M. O., & P\u00f6schl, U. (2008). Calibration and measurement uncertainties of a continuous-flow cloud  condensation nuclei counter (DMT-CCNC): CCN activation of ammonium sulfate  and sodium chloride aerosol particles in theory and experiment. Atmospheric Chemistry and Physics, 8(5), 1153\u20131179. https:\/\/doi.org\/10.5194\/acp-8-1153-2008\r\n\r\nRoberts, G. C., & Nenes, A. (2005). A Continuous-Flow Streamwise Thermal-Gradient CCN Chamber for Atmospheric Measurements. Aerosol Science and Technology, 39(3), 206\u2013221. https:\/\/doi.org\/10.1080\/027868290913988\r\n\r\nKarlsson, L., Baccarini, A., Duplessis, P., Baumgardner, D., Brooks, I. M., Chang, R. Y. W., ... & Zieger, P. (2022). Physical and chemical properties of cloud droplet residuals and aerosol particles during the Arctic Ocean 2018 expedition. Journal of Geophysical Research: Atmospheres, 127(11). https:\/\/doi.org\/10.1029\/2021JD036383","comments":"More information on the CVI measurements can be found in Karlsson et al. (2022).","category":"Atmosphere","subcategory":"Aerosols","keywords":"CCN; CCNC; Fog; Cloud; Microphysics; High Arctic; Arctic; Arctic Ocean; Arctic Ocean 2018; AO18; AO2018; Icebreaker Oden","scientist":"Patrick Duplessis, Rachel Y.-W. Chang, Michael Wheeler, Richard Leaitch, Birgitta Svenningsson, Linn Karlsson, Paul Zieger","firstname":"Rachel","lastname":"Chang","address":"Department of Physics & Atmospheric Science; Dalhousie University; PO Box 15000","postalcode":"B3H 4R2","city":"Halifax","province":"Nova Scotia","country":"Canada","parameters":"Earth science > Atmosphere > Aerosols > Cloud condensation nuclei","location":"Ocean > Arctic Ocean","progress":"Completed","language":"English","project":"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, Stockholm University; project website with updates: https:\/\/www.aces.su.se\/research\/projects\/microbiology-ocean-cloud-coupling-in-the-high-arctic-moccha\/). This work was supported by the Natural Sciences and Engineering Research Council of Canada (RGPIN-2014-05173); the Canadian Transatlantic Ocean System Science & Technology (TOSST) program; the Ocean Frontier Institute, through an award from the Canada First Research Excellence Fund, the Knut-and-Alice-Wallenberg Foundation within the ACAS project (project no. 2016.0024), the Bolin Centre for Climate Research (RA2), the Swedish Research Council (project no. 2018-05045, 2016-03518, 201605100).","publisher":"Bolin Centre Database","version":"1","constrains":"The data is free of use. The authors would highly appreciate to be contacted if the is used in further publications.","access":""}]