Saha, Sourita; Russell, Lynn M.; Andrews, Elizabeth; Leaitch, W. Richard (2024). Cloud Condensation Nuclei (CCN) Measurements at Utqiagvik, Alaska, from 2022 to 2027 for STUARD. In Aerosol Measurements at Utqiagvik, Alaska, from 2022 to 2027 for Sustaining The Utqiagvik Aerosol Record of Decades (STUARD). UC San Diego Library Digital Collections. https://doi.org/10.6075/J0G1612Q

This object contains the raw and processed CCN measurements at Utqiagvik, Alaska. Information about the processing and the variables used are provided in the readme file along with a summary plot of the CCN measurements.

• 2022-06-01 to 2027-06-30

• 2024

• Andrews, Elizabeth
• Leaitch, W. Richard
• Russell, Lynn M.
• Saha, Sourita

• Russell, Lynn M.

• Thiemens, Mark H.

The CCN-100 instrument from DMT operates at Barrow to measure aerosol particles that can activate to form cloud droplets (also known as cloud condensation nuclei). The instrument operates by supersaturating sample air to the point where the CCN become detectable particles, which are then sized using an optical particle counter. The supersaturations selected are 0.1%, 0.25%, 0.5%, 1% and 1.5% at intervals of 5 minutes and then the order is reversed and stepped back to 0.1%. Each hour of operation includes supersaturations from 0.1% to 1% at 10 min and 1.5% at 5 min.

The CCN instrument used at Barrow for this dataset comes from Droplet Measurement Technologies (DMT) in Boulder, CO. (Model Number: DMT CCN 100, Serial Number 001). More information about this instrument can be found at https://www.dropletmeasurement.com/product/cloud-condensation-nuclei-counter/. The retrieval and posting of the raw data is completed automatically by NOAA. Quality control and post-processing were completed using MATLAB R2023a software by the authors.

This project has been funded by the National Science Foundation (NSF), Award number AGS-2127737.

• Arctic regions
• Barrow (Alaska)
• Barrow Atmospheric Baseline Observatory (United States)
• Utqiaġvik (Alaska)

• Atmospheric Sciences
• Climate change science
• Cloud condensation nuclei (CCN)

Point: 71.3230,-156.6114

• data
• image
• text

• English

Identifier: Lynn M. Russell: https://orcid.org/0000-0002-6108-2375

Identifier: Sourita Saha: https://orcid.org/0000-0003-4229-6893

Identifier: W. Richard Leaitch: https://orcid.org/0000-0003-1503-5639

Doi: https://doi.org/10.6075/J0G1612Q

Other resource

• Schmale, J., Henning, S., Decesari, S., Henzing, B., Keskinen, H., Sellegri, K., Ovadnevaite, J., Pöhlker, M. L., Brito, J., Bougiatioti, A., Kristensson, A., Kalivitis, N., Stavroulas, I., Carbone, S., Jefferson, A., Park, M., Schlag, P., Iwamoto, Y., Aalto, P., Äijälä, M., Bukowiecki, N., Ehn, M., Frank, G., Fröhlich, R., Frumau, A., Herrmann, E., Herrmann, H., Holzinger, R., Kos, G., Kulmala, M., Mihalopoulos, N., Nenes, A., O'Dowd, C., Petäjä, T., Picard, D., Pöhlker, C., Pöschl, U., Poulain, L., Prévôt, A. S. H., Swietlicki, E., Andreae, M. O., Artaxo, P., Wiedensohler, A., Ogren, J., Matsuki, A., Yum, S. S., Stratmann, F., Baltensperger, U., and Gysel, M.: Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories, Atmos. Chem. Phys., 18, 2853–2881. https://doi.org/10.5194/acp-18-2853-2018

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2024-07-23