Articles | Volume 17, issue 18
https://doi.org/10.5194/acp-17-11227-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-11227-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
22 Sep 2017
Research article |
| 22 Sep 2017
Comparative measurements of ambient atmospheric concentrations of ice nucleating particles using multiple immersion freezing methods and a continuous flow diffusion chamber
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
Thomas C. J. Hill
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
Markus D. Petters
Department of Marine, Earth and Atmospheric Sciences, North Carolina
State University, Raleigh, NC 27695, USA
Allan K. Bertram
Department of Chemistry, University of British Columbia, Vancouver,
BC, V6T1Z1, Canada
Yutaka Tobo
National Institute of Polar Research, Tachikawa, Tokyo 190-8518, Japan
Department of Polar Science, School of Multidisciplinary Sciences,
SOKENDAI (The Graduate School for Advanced Studies), Tachikawa, Tokyo
190-8518, Japan
Ryan H. Mason
Department of Chemistry, University of British Columbia, Vancouver,
BC, V6T1Z1, Canada
Kaitlyn J. Suski
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
now at: Pacific Northwest National Laboratory, Richland, WA 99352, USA
Christina S. McCluskey
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
Ezra J. T. Levin
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
Gregory P. Schill
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
Yvonne Boose
Karlsruhe Institute of Technology, Institute of Meteorology and
Climate Research (IMK-IFU), 82467 Garmisch-Partenkirchen, Germany
Anne Marie Rauker
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
Anna J. Miller
Department of Chemistry, Reed College, Portland, OR 97202, USA
Jake Zaragoza
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
now at: Air Resource Specialists, Fort Collins, CO 80525, USA
Katherine Rocci
Department of Earth Sciences, University of New Hampshire, Durham,
NH 03824, USA
Nicholas E. Rothfuss
Department of Marine, Earth and Atmospheric Sciences, North Carolina
State University, Raleigh, NC 27695, USA
Hans P. Taylor
Department of Marine, Earth and Atmospheric Sciences, North Carolina
State University, Raleigh, NC 27695, USA
John D. Hader
Department of Marine, Earth and Atmospheric Sciences, North Carolina
State University, Raleigh, NC 27695, USA
Cedric Chou
Department of Chemistry, University of British Columbia, Vancouver,
BC, V6T1Z1, Canada
J. Alex Huffman
Department of Chemistry & Biochemistry, University of Denver,
Denver, CO 80210, USA
Ulrich Pöschl
Department of Multiphase Chemistry, Max Planck Institute for
Chemistry, 55128 Mainz, Germany
Anthony J. Prenni
National Park Service, Air Resources Division, Lakewood, CO 80228,
USA
Sonia M. Kreidenweis
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
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Latest update: 22 Nov 2025
Short summary
The consistency and complementarity of different methods for measuring the numbers of particles capable of forming ice in clouds are examined in the atmosphere. Four methods for collecting particles for later (offline) freezing studies are compared to a common instantaneous method. Results support very good agreement in many cases but also biases that require further research. Present capabilities and uncertainties for obtaining global data on these climate-relevant aerosols are thus defined.
The consistency and complementarity of different methods for measuring the numbers of particles...
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