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  2. The Puy de Dôme ICe Nucleation Intercomparison Campaign (PICNIC): Comparison between online and offline methods in ambient air
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    Datenpaket: The Puy de Dôme ICe Nucleation Intercomparison Campaign (PICNIC): Comparison between online and offline methods in ambient air

    Alternativer Identifier:
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    Verwandter Identifier:
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    Ersteller/in:
    Lacher, Larissa https://orcid.org/0000-0002-1601-0276 [Aerosolforschung]

    Adams, Michael P. [Adams, Michael P.]

    Barry, Kevin [Barry, Kevin]

    Bertozzi, Barbara [Bertozzi, Barbara]

    Bingemer, Heinz [Bingemer, Heinz]

    Boffo, Cristian [Boffo, Cristian]

    Bras, Yannick [Bras, Yannick]

    Büttner, Nicole [Büttner, Nicole]

    Castarede, Dimitri [Castarede, Dimitri]

    Cziczo, Daniel J. [Cziczo, Daniel J.]

    DeMott, Paul J. [DeMott, Paul J.]

    Fösig, Romy https://orcid.org/0000-0002-8162-4354 [Aerosolforschung]

    Goodell, Meghan [Goodell, Meghan]

    Höhler, Kristina https://orcid.org/0000-0001-5503-9816 [Aerosolforschung]

    Hill, Thomas C. J. [Hill, Thomas C. J.]

    Jentzsch, Conrad [Jentzsch, Conrad]

    Ladino, Luis A. [Ladino, Luis A.]

    Levin, Ezra J. T. [Levin, Ezra J. T.]

    Mertes, Stephan [Mertes, Stephan]

    Möhler, Ottmar [Aerosolforschung]

    Moore, Kathryn A. [Moore, Kathryn A.]

    Murray, Benjamin J. [Murray, Benjamin J.]

    Nadolny, Jens [Nadolny, Jens]

    Pfeuffer, Tatjana [Pfeuffer, Tatjana]

    Picard, David [Picard, David]

    Ramírez-Romero, Carolina [Ramírez-Romero, Carolina]

    Ribeiro, Mickael [Ribeiro, Mickael]

    Richter, Sarah [Richter, Sarah]

    Schrod, Jann [Schrod, Jann]

    Sellegri, Karine [Sellegri, Karine]

    Stratmann, Frank [Stratmann, Frank]

    Swanson, Benjamin E. [Swanson, Benjamin E.]

    Thomson, Erik S. [Thomson, Erik S.]

    Wex, Heike [Wex, Heike]

    Wolf, Martin J. [Wolf, Martin J.]

    Freney, and Evelyn [Freney, and Evelyn]
    Beitragende:
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    Titel:
    The Puy de Dôme ICe Nucleation Intercomparison Campaign (PICNIC): Comparison between online and offline methods in ambient air
    Weitere Titel:
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    Beschreibung:
    (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 ten INP methods over two 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.
    (Technical Remarks) Ice-nucleating particle concentration measurements from two continuous flow diffusion chambers (CFDC; Colorado State University-Continuous Flow Diffusion Chamber, CSU-CFDC; Spectrometer for Ice Nuclei, SPIN) and an expansion chamber (Portable Ice Nucleation Experiment, PINE) and seven offline freezing techniques using water suspensions of filter-collected particles sampled (FRankfurt Ice Nuclei Deposition FreezinG Experiment, FRIDGE; Ice Nucleation Droplet Array, INDA; Ice Nucleation Spectrometer of the Karlsruhe Institute of Technology, INSEKT; Ice Spectrometer, IS; Leipzig Ice Nucleation Array, LINA; LED based Ice Nucleation Detection Apparatus LINDA; Micro-Orifice Uniform Deposit Impactor–Droplet Freezing Technique, UNAM-MOUDI-DFT).
    Schlagworte:
    Ice-nucleating particles
    Intercomparison campaign
    Puy de Dôme
    Zugehörige Informationen:
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    Sprache:
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    Herausgeber/in:
    Karlsruhe Institute of Technology
    Erstellungsjahr:
    Fachgebiet:
    Geological Science
    Objekttyp:
    Dataset
    Datenquelle:
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    Verwendete Software:
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    Datenverarbeitung:
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    Erscheinungsjahr:
    Rechteinhaber/in:

    Adams, Michael P.

    Barry, Kevin

    Bertozzi, Barbara

    Bingemer, Heinz

    Boffo, Cristian

    Bras, Yannick

    Büttner, Nicole

    Castarede, Dimitri

    Cziczo, Daniel J.

    DeMott, Paul J.

    Goodell, Meghan

    Hill, Thomas C. J.

    Jentzsch, Conrad

    Ladino, Luis A.

    Levin, Ezra J. T.

    Mertes, Stephan

    Möhler, Ottmar

    Moore, Kathryn A.

    Murray, Benjamin J.

    Nadolny, Jens

    Pfeuffer, Tatjana

    Picard, David

    Ramírez-Romero, Carolina

    Ribeiro, Mickael

    Richter, Sarah

    Schrod, Jann

    Sellegri, Karine

    Stratmann, Frank

    Swanson, Benjamin E.

    Thomson, Erik S.

    Wex, Heike

    Wolf, Martin J.

    Freney, and Evelyn
    Förderung:
    -
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    Status:
    Publiziert
    Eingestellt von:
    kitopen
    Erstellt am:
    Archivierungsdatum:
    2024-01-12
    Archivgröße:
    384,0 kB
    Archiversteller:
    kitopen
    Archiv-Prüfsumme:
    2a50b8d942c65709b7c56903d6e33b00 (MD5)
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