Articles | Volume 18, issue 3
https://doi.org/10.5194/amt-18-639-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-639-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
06 Feb 2025
Research article | Highlight paper |
| 06 Feb 2025
| 06 Feb 2025
Field intercomparison of ice nucleation measurements: the Fifth International Workshop on Ice Nucleation Phase 3 (FIN-03)
Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
Jessica A. Mirrielees
Department of Atmospheric Sciences, Texas A&M University, College Station, TX, USA
now at: Chemistry Department, University of Michigan, Ann Arbor, MI, USA
Sarah Suda Petters
Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC, USA
now at: College of Engineering Center for Environmental Research and Technology (CE-CERT), University of California Riverside, Riverside, CA, USA
now at: Department of Chemical and Environmental Engineering, University of California Riverside, Riverside, CA, USA
Daniel J. Cziczo
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
now at: Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN, USA
Markus D. Petters
Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, NC, USA
now at: College of Engineering Center for Environmental Research and Technology (CE-CERT), University of California Riverside, Riverside, CA, USA
now at: Department of Chemical and Environmental Engineering, University of California Riverside, Riverside, CA, USA
Heinz G. Bingemer
Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
Thomas C. J. Hill
Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
Karl Froyd
NOAA Earth System Research Laboratory, Boulder, CO, USA
CIRES, University of Colorado, Boulder, CO, USA
now at: Air Innova, Boulder, CO, USA
Sarvesh Garimella
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
now at: ACME AtronOmatic, LLC, Portland, OR, USA
A. Gannet Hallar
Storm Peak Laboratory, Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT, USA
Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT, USA
Ezra J. T. Levin
Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
now at: The Colorado State University Energy Institute, Fort Collins, CO, USA
Ian B. McCubbin
Storm Peak Laboratory, Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT, USA
Department of Atmospheric Sciences, University of Utah, Salt Lake City, UT, USA
Anne E. Perring
NOAA Earth System Research Laboratory, Boulder, CO, USA
CIRES, University of Colorado, Boulder, CO, USA
now at: Department of Chemistry, Colgate University, Hamilton, NY, USA
Christopher N. Rapp
now at: Department of Chemical and Environmental Engineering, University of California Riverside, Riverside, CA, USA
Thea Schiebel
Institute of Meteorology and Climate Research (IMK-AAF), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
now at: Faculty 8 – Mathematics and Physics, University of Stuttgart, Stuttgart, Germany
Jann Schrod
Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
Kaitlyn J. Suski
Department of Atmospheric Science, Colorado State University, Fort Collins, CO, USA
now at: Rainmaker Technology Corporation, El Segundo, CA, USA
Daniel Weber
Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, Frankfurt am Main, Germany
now at: Federal Waterways Engineering and Research Institute, Karlsruhe, Germany
Martin J. Wolf
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
now at: Yale Center for Law and Policy, New Haven, CT, USA
Maria Zawadowicz
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
now at: Brookhaven National Laboratory, Richland, WA, USA
Jake Zenker
Department of Atmospheric Sciences, Texas A&M University, College Station, TX, USA
now at: Sandia National Laboratories, Albuquerque, NM, USA
Ottmar Möhler
Institute of Meteorology and Climate Research (IMK-AAF), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
Sarah D. Brooks
Department of Atmospheric Sciences, Texas A&M University, College Station, TX, USA
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Latest update: 06 Feb 2025
Executive editor
Accurate atmospheric measurements of ice nucleating particles (INPs) are needed for improving understanding of their role in affecting cloud properties and climate. Prior international workshops on comparing INP measuring systems were conducted mainly in the laboratory, where high concentrations of INPs were typically employed. This workshop established a template for the conduct of comparisons in an atmospheric setting where low number concentrations of INPs typically exist, representing a very small fraction of all particles. Overall, this study stimulates advances of important but challenging INP measurements and strengthens confidence in their use to understand ice formation in clouds.
Accurate atmospheric measurements of ice nucleating particles (INPs) are needed for improving...
Short summary
The Fifth International Ice Nucleation Workshop Phase 3 (FIN-03) compared the ambient atmospheric performance of ice-nucleating particle (INP) measuring systems and explored general methods for discerning atmospheric INP compositions. Mirroring laboratory results, INP concentrations agreed within 5–10 factors. Measurements of total aerosol properties and investigations of INP compositions supported a dominant role of soil and plant organic aerosol elements as INPs during the study.
The Fifth International Ice Nucleation Workshop Phase 3 (FIN-03) compared the ambient...
