PuSH - Publikationsserver des Helmholtz Zentrums München

Export: TXT Text RIS Endnote (RIS) BIB BibTeX
Kecorius, S. ; Hoffmann, E.H.* ; Tilgner, A.* ; Barrientos-Velasco, C.* ; van Pinxteren, M.* ; Zeppenfeld, S.* ; Vogl, T.* ; Madueno, L.* ; Lovrić, M.* ; Wiedensohler, A.* ; Kulmala, M.* ; Paasonen, P.* ; Herrmann, H.*

Rapid growth of Aitken-mode particles during Arctic summer by fog chemical processing and its implication.

PNAS Nexus 2:11 (2023)
Verlagsversion DOI PMC
Open Access Gold
Creative Commons Lizenzvertrag
In the Arctic, new particle formation (NPF) and subsequent growth processes are the keys to produce Aitken-mode particles, which under certain conditions can act as cloud condensation nuclei (CCNs). The activation of Aitken-mode particles increases the CCN budget of Arctic low-level clouds and, accordingly, affects Arctic climate forcing. However, the growth mechanism of Aitken-mode particles from NPF into CCN range in the summertime Arctic boundary layer remains a subject of current research. In this combined Arctic cruise field and modeling study, we investigated Aitken-mode particle growth to sizes above 80 nm. A mechanism is suggested that explains how Aitken-mode particles can become CCN without requiring high water vapor supersaturation. Model simulations suggest the formation of semivolatile compounds, such as methanesulfonic acid (MSA) in fog droplets. When the fog droplets evaporate, these compounds repartition from CCNs into the gas phase and into the condensed phase of nonactivated Aitken-mode particles. For MSA, a mass increase factor of 18 is modeled. The postfog redistribution mechanism of semivolatile acidic and basic compounds could explain the observed growth of >20 nm h(-1) for 60-nm particles to sizes above 100 nm. Overall, this study implies that the increasing frequency of NPF and fog-related particle processing can affect Arctic cloud properties in the summertime boundary layer.
Impact Factor
Scopus SNIP
Altmetric
0.000
0.000
Tags
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern

Zusatzinfos bearbeiten
Eigene Tags bearbeiten
Privat
Eigene Anmerkung bearbeiten
Privat
Auf Publikationslisten für
Homepage nicht anzeigen
Als besondere Publikation
markieren
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter new particle formation; Arctic fog; aqueous-phase processing; aerosol growth; cloud condensation nuclei; Mixed-phase Clouds; Size Spectrometers; Microphysical Properties; Dimethyl Sulfide; Boundary-layer; Aerosol; Condensation; Nucleation; Chemistry; Amplification
Sprache englisch
Veröffentlichungsjahr 2023
HGF-Berichtsjahr 2023
ISSN (print) / ISBN 2752-6542
e-ISSN 2752-6542
Zeitschrift PNAS Nexus
Quellenangaben Band: 2, Heft: 5, Seiten: , Artikelnummer: 11 Supplement: ,
Verlag Oxford University Press
Verlagsort Great Clarendon St, Oxford Ox2 6dp, England
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Epidemiology (EPI)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-504000-004
Förderungen Jane and Aatos Erkko Foundation
DOI 10.1093/pnasnexus/pgad124
WOS ID 001053144200019
PubMed ID 37152675
Erfassungsdatum 2024-01-12
[➜Korrektur melden]