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, . DOI: 10.1029/2006GL026055.
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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.
|Title:||Light scattering by single ice crystals of cirrus clouds|
|Journal or Publication Title:||Geophysical Research Letters|
|In ISI Web of Science:||Yes|
|Keywords:||Light scattering, cirrus, INCA, ice crystals|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|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)|
|Institutes and Institutions:||Institute of Atmospheric Physics > Atmospheric Trace Species|
|Deposited By:||Dr.rer.nat. Andreas Minikin|
|Deposited On:||24 Jul 2007|
|Last Modified:||27 Apr 2009 13:14|
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