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Original title:
INFLUENCE OF AEROSOL CHEMICAL COMPOSITION AND AIR MASS ORIGIN ON CLOUD ACTIVATION AT A BACKGROUND SITE
Authors: Andan, Charlie ; Moravec, Pavel ; Zíková, Naděžda ; Lhotka, Radek ; Mbengue, Saliou ; Ondráček, Jakub ; Schwarz, Jaroslav ; Vodička, Petr ; Ždímal, Vladimír
Document type: Papers
Conference/Event: konference Ovzduší v ČASe 2025, Hustopeče (CZ), 20251110
Year: 2025
Language: eng
Abstract: Atmospheric aerosol particles play a crucial role in cloud formation by acting as cloud condensation nuclei (CCN), influencing the Earth's radiative balance and hydrological cycle. The ability of aerosols to serve as CCN depends not only on their number concentration but also on their physical and chemical properties, as well as their mixing state. Hygroscopicity, which describes a particle’s ability to absorb water, is a fundamental property that governs aerosol behavior in the atmosphere. Since aerosol hygroscopic properties evolve throughout their atmospheric lifetime, understanding these changes is essential for assessing their role in cloud activation. This study presents a comprehensive analysis of aerosol physical, chemical, and activation properties measured at the ACTRIS (Aerosol, Clouds, and Trace Gases Research Infrastructure, http://www.actris.eu/) background site in Košetice (NAOK), Czech Republic. Our primary objective is to improve the understanding of aerosol activation processes and ambient hygroscopic properties, with a particular focus on how chemical composition influences CCN activity.
Keywords: aerosol-cloud interaction; cloud condensation nuclei; hygroscopicity
Project no.: LM2023030 (CEP)
Funding provider: GA MŠk
Host item entry: SBORNÍK XXIV. výroční konference České aerosolové společnosti OVZDUŠÍ V ČASe, ISBN 978-80-908653-3-4
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.
Institution: Institute of Chemical Process Fundamentals AS ČR (web)
External URL: http://cas.icpf.cas.cz/download/Sbornik_VKCAS_2025.pdf
Original record: https://hdl.handle.net/11104/0372524
Permalink: http://www.nusl.cz/ntk/nusl-692782
The record appears in these collections:
Research > Institutes ASCR > Institute of Chemical Process Fundamentals
Conference materials > Papers
Authors: Andan, Charlie ; Moravec, Pavel ; Zíková, Naděžda ; Lhotka, Radek ; Mbengue, Saliou ; Ondráček, Jakub ; Schwarz, Jaroslav ; Vodička, Petr ; Ždímal, Vladimír
Document type: Papers
Conference/Event: konference Ovzduší v ČASe 2025, Hustopeče (CZ), 20251110
Year: 2025
Language: eng
Abstract: Atmospheric aerosol particles play a crucial role in cloud formation by acting as cloud condensation nuclei (CCN), influencing the Earth's radiative balance and hydrological cycle. The ability of aerosols to serve as CCN depends not only on their number concentration but also on their physical and chemical properties, as well as their mixing state. Hygroscopicity, which describes a particle’s ability to absorb water, is a fundamental property that governs aerosol behavior in the atmosphere. Since aerosol hygroscopic properties evolve throughout their atmospheric lifetime, understanding these changes is essential for assessing their role in cloud activation. This study presents a comprehensive analysis of aerosol physical, chemical, and activation properties measured at the ACTRIS (Aerosol, Clouds, and Trace Gases Research Infrastructure, http://www.actris.eu/) background site in Košetice (NAOK), Czech Republic. Our primary objective is to improve the understanding of aerosol activation processes and ambient hygroscopic properties, with a particular focus on how chemical composition influences CCN activity.
Keywords: aerosol-cloud interaction; cloud condensation nuclei; hygroscopicity
Project no.: LM2023030 (CEP)
Funding provider: GA MŠk
Host item entry: SBORNÍK XXIV. výroční konference České aerosolové společnosti OVZDUŠÍ V ČASe, ISBN 978-80-908653-3-4
Rights: This work is protected under the Copyright Act No. 121/2000 Coll.
Institution: Institute of Chemical Process Fundamentals AS ČR (web)
External URL: http://cas.icpf.cas.cz/download/Sbornik_VKCAS_2025.pdf
Original record: https://hdl.handle.net/11104/0372524
Permalink: http://www.nusl.cz/ntk/nusl-692782
The record appears in these collections:
Research > Institutes ASCR > Institute of Chemical Process Fundamentals
Conference materials > Papers
Record created 2025-12-16, last modified 2026-01-26
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