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Toward Better Constrained Scattering Models for Natural Ice Crystals in the Visible Region

Xu, Guanglang 1; Waitz, Fritz 2; Wagner, Shawn 1; Nehlert, Franziska 1; Schnaiter, Martin ORCID iD icon 2; Järvinen, Emma ORCID iD icon 2
1 Karlsruher Institut für Technologie (KIT)
2 Institut für Meteorologie und Klimaforschung Atmosphärische Aerosolforschung (IMKAAF), Karlsruher Institut für Technologie (KIT)


In this work, we introduce a method for constraining the optical scattering models of natural ice crystals based on in-situ measurements. Specifically the measured angular scattering functions for ice crystals can be used to compute a set of the asymmetry parameter (g) and the corresponding complexity parameter (Cp). It is demonstrated that the g-Cp relation can give valuable information on the morphology of ice crystal. The validity of the methods is shown from theoretical perspectives and the geometric-optics ray-tracing simulations. As an application, we investigate rimed ice crystals from in-situ measurements and found that (a) the Cp parameter is very well correlated with the surface riming degree and (b) only those models with both roughness and internal scattering can explain the observed g-Cp relation for rimed particles.

Verlagsausgabe §
DOI: 10.5445/IR/1000156164
Veröffentlicht am 21.02.2023
DOI: 10.1029/2022jd037604
Zitationen: 2
Web of Science
Zitationen: 2
Zitationen: 3
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung Atmosphärische Aerosolforschung (IMKAAF)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 27.01.2023
Sprache Englisch
Identifikator ISSN: 2169-897X, 2169-8996
KITopen-ID: 1000156164
HGF-Programm 12.11.26 (POF IV, LK 01) Aerosol-Cloud-Climate-Interaction
Erschienen in Journal of Geophysical Research: Atmospheres
Verlag John Wiley and Sons
Band 128
Heft 2
Seiten e2022JD037604
Vorab online veröffentlicht am 10.01.2023
Nachgewiesen in Scopus
Web of Science
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