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Light scattering by single ice crystals of cirrus clouds

Shcherbakov, Valery and Gayet, Jean-Francois and Jourdan, Olivier and Ström, Johan and Minikin, Andreas (2006) Light scattering by single ice crystals of cirrus clouds. Geophysical Research Letters, 33, L15809. DOI: 10.1029/2006GL026055.

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Abstract

In situ measurements of angular scattering intensities (ASIs) related to single ice crystals of cirrus clouds were obtained for the first time with the airborne Polar Nephelometer instrument. These observations were performed in the southern mid-latitudes during the INCA project. The analysis of the data shows that the well marked peaks of the ASIs are undoubtedly attributed to quasi-specular reflections from crystal facets and the refracted rays passed through the ice crystals. Emphasizing that it is not enough to know the shape of the crystal, but also the internal structure is of great importance. Ray tracing simulations reproduce most of the observed ASIs features. The model of surface roughness, which assumes the Weibull statistics, enables to reproduce the quasi-specular external reflection from crystal facets. It follows from the retrievals that the surface of the crystals was deeply rough and the amount of the internal inclusions (air bubbles) was quite high.

Document Type:Article
Title:Light scattering by single ice crystals of cirrus clouds
Authors:
AuthorsInstitution or Email of Authors
Shcherbakov, ValeryInstitute of Physics, Minsk, BRS
Gayet, Jean-FrancoisLaMP, Univ. Blaise Pascal, Aubière, F
Jourdan, OlivierLaMP, Univ. Blaise Pascal, Aubière, F
Ström, JohanITM, Stockholm University, Stockholm, S
Minikin, AndreasUNSPECIFIED
Date:2006
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:33
DOI:10.1029/2006GL026055
Page Range:L15809
Status:Published
Keywords:Light scattering, cirrus, INCA, ice crystals
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Dr.rer.nat. Andreas Minikin
Deposited On:24 Jul 2007
Last Modified:11 Nov 2014 21:56

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