Atmospheric Chemistry and Physics (Feb 2024)
The Puy de Dôme ICe Nucleation Intercomparison Campaign (PICNIC): comparison between online and offline methods in ambient air
- L. Lacher,
- M. P. Adams,
- K. Barry,
- B. Bertozzi,
- B. Bertozzi,
- H. Bingemer,
- C. Boffo,
- Y. Bras,
- N. Büttner,
- D. Castarede,
- D. J. Cziczo,
- D. J. Cziczo,
- P. J. DeMott,
- R. Fösig,
- M. Goodell,
- K. Höhler,
- T. C. J. Hill,
- C. Jentzsch,
- L. A. Ladino,
- E. J. T. Levin,
- S. Mertes,
- O. Möhler,
- K. A. Moore,
- B. J. Murray,
- J. Nadolny,
- T. Pfeuffer,
- D. Picard,
- C. Ramírez-Romero,
- M. Ribeiro,
- S. Richter,
- J. Schrod,
- K. Sellegri,
- F. Stratmann,
- B. E. Swanson,
- E. S. Thomson,
- H. Wex,
- M. J. Wolf,
- E. Freney
Affiliations
- L. Lacher
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
- M. P. Adams
- School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
- K. Barry
- Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado 80523, USA
- B. Bertozzi
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
- B. Bertozzi
- now at: Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
- H. Bingemer
- Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, 60438 Frankfurt, Germany
- C. Boffo
- Bilfinger Noell GmbH, 97080 Würzburg, Germany
- Y. Bras
- Laboratoire de Météorologie Physique, Université Clermont Auvergne, 63178 Clermont-Ferrand, France
- N. Büttner
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
- D. Castarede
- Department of Chemistry and Molecular Biology, University of Gothenburg, 40530 Gothenburg, Sweden
- D. J. Cziczo
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- D. J. Cziczo
- Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, Indiana 47907, USA
- P. J. DeMott
- Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado 80523, USA
- R. Fösig
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
- M. Goodell
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- K. Höhler
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
- T. C. J. Hill
- Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado 80523, USA
- C. Jentzsch
- Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
- L. A. Ladino
- Institute for Atmospheric Sciences and Climate Change, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
- E. J. T. Levin
- Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado 80523, USA
- S. Mertes
- Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
- O. Möhler
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
- K. A. Moore
- Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado 80523, USA
- B. J. Murray
- School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
- J. Nadolny
- Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
- T. Pfeuffer
- Bilfinger Noell GmbH, 97080 Würzburg, Germany
- D. Picard
- Laboratoire de Météorologie Physique, Université Clermont Auvergne, 63178 Clermont-Ferrand, France
- C. Ramírez-Romero
- Institute for Atmospheric Sciences and Climate Change, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
- M. Ribeiro
- Laboratoire de Météorologie Physique, Université Clermont Auvergne, 63178 Clermont-Ferrand, France
- S. Richter
- Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, 60438 Frankfurt, Germany
- J. Schrod
- Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, 60438 Frankfurt, Germany
- K. Sellegri
- Laboratoire de Météorologie Physique, Université Clermont Auvergne, 63178 Clermont-Ferrand, France
- F. Stratmann
- Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
- B. E. Swanson
- Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado 80523, USA
- E. S. Thomson
- Department of Chemistry and Molecular Biology, University of Gothenburg, 40530 Gothenburg, Sweden
- H. Wex
- Leibniz Institute for Tropospheric Research, 04318 Leipzig, Germany
- M. J. Wolf
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- E. Freney
- Laboratoire de Météorologie Physique, Université Clermont Auvergne, 63178 Clermont-Ferrand, France
- DOI
- https://doi.org/10.5194/acp-24-2651-2024
- Journal volume & issue
-
Vol. 24
pp. 2651 – 2678
Abstract
Ice crystal formation in mixed-phase clouds is initiated by specific aerosol particles, termed ice-nucleating particles (INPs). Only a tiny fraction of all aerosol particles are INPs, providing a challenge for contemporary INP measurement techniques. Models have shown that the presence of INPs in clouds can impact their radiative properties and induce precipitation formation. However, for a qualified implementation of INPs in models, measurement techniques able to accurately detect the temperature-dependent INP concentration are needed. Here we present measurements of INP concentrations in ambient air under conditions relevant to mixed-phase clouds from a total of 10 INP methods over 2 weeks in October 2018 at the Puy de Dôme observatory in central France. A special focus in this intercomparison campaign was placed on having overlapping sampling periods. Although a variety of different measurement principles were used, the majority of the data show INP concentrations within a factor of 5 of one another, demonstrating the suitability of the instruments to derive model-relevant INP data. Lower values of comparability are likely due to instrument-specific features such as aerosol lamina spreading in continuous-flow diffusion chambers, demonstrating the need to account for such phenomena when interpreting INP concentration data from online instruments. Moreover, consistently higher INP concentrations were observed from aerosol filters collected on the rooftop at the Puy de Dôme station without the use of an aerosol inlet.
