KIT | KIT-Bibliothek | Impressum | Datenschutz

Characterization of aerosol properties at Cyprus, focusing on cloud condensation nuclei and ice-nucleating particles

Gong, Xianda; Wex, Heike; Müller, Thomas; Wiedensohler, Alfred; Höhler, Kristina; Kandler, Konrad; Ma, Nan; Dietel, Barbara; Schiebel, Thea; Möhler, Ottmar; Stratmann, Frank

Abstract:
As part of the A-LIFE (Absorbing aerosol layers in a changing climate: aging, LIFEtime and dynamics) campaign, ground-based measurements were carried out in Paphos, Cyprus, to characterize the abundance, properties, and sources of aerosol particles in general and cloud condensation nuclei (CCN) and ice-nucleating particles (INP) in particular. New particle formation (NPF) events with subsequent growth of the particles into the CCN size range were observed. Aitken mode particles featured κ values of 0.21 to 0.29, indicating the presence of organic materials. Accumulation mode particles featured a higher hygroscopicity parameter, with a median κ value of 0.57, suggesting the presence of sulfate and maybe sea salt particles mixed with organic carbon. A clear downward trend of κ with increasing supersaturation and decreasing dcrit was found. Super-micron particles originated mainly from sea-spray aerosol (SSA) and partly from mineral dust. INP concentrations (NINP) were measured in the temperature range from -6.5 to -26.5 °C, using two freezing array-type instruments. NINP at a particular temperature span around 1 order of magnitude below -20 °C and about 2 orders of magnitude at warmer temperatures (T > -18 °C). ... mehr

Open Access Logo


Verlagsausgabe §
DOI: 10.5445/IR/1000099192
Veröffentlicht am 22.10.2019
Originalveröffentlichung
DOI: 10.5194/acp-19-10883-2019
Scopus
Zitationen: 13
Dimensions
Zitationen: 13
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Aerosolforschung (IMK-AAF)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 1680-7324
KITopen-ID: 1000099192
HGF-Programm 12.01.01 (POF III, LK 01) Clouds in a pertubed atmosphere
Erschienen in Atmospheric chemistry and physics
Verlag European Geosciences Union (EGU)
Band 19
Heft 16
Seiten 10883–10900
Vorab online veröffentlicht am 29.08.2019
Nachgewiesen in Dimensions
Web of Science
Scopus
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page