Coherent Backscattering by Large Ice Crystals of Irregular Shapes in Cirrus Clouds

All elements of the scattering matrix have been numerically studied for particles of irregular shapes whose size is much larger than incident wavelength. The calculations are performed in the physical optics approximation for a particle size of 20 μm at a wavelength of 0.532 μm. Here the scattered i...

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Main Authors: Natalia Kustova, Alexander Konoshonkin, Victor Shishko, Dmitry Timofeev, Anatoli Borovoi, Zhenzhu Wang
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Atmosphere
Subjects:
Online Access:https://www.mdpi.com/2073-4433/13/8/1279
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author Natalia Kustova
Alexander Konoshonkin
Victor Shishko
Dmitry Timofeev
Anatoli Borovoi
Zhenzhu Wang
author_facet Natalia Kustova
Alexander Konoshonkin
Victor Shishko
Dmitry Timofeev
Anatoli Borovoi
Zhenzhu Wang
author_sort Natalia Kustova
collection DOAJ
description All elements of the scattering matrix have been numerically studied for particles of irregular shapes whose size is much larger than incident wavelength. The calculations are performed in the physical optics approximation for a particle size of 20 μm at a wavelength of 0.532 μm. Here the scattered intensity reveals the backscattering coherent peak. It is shown that the polarization elements of the matrix reveal the surges within the backscattering peak. The angular width of the surges does not practically depend on particle shape, but depends on the particle size. It is shown that these surges are created by interference between the conjugate scattered waves propagating in the inverse directions. The results obtained are of interest for interpretation of lidar measurements in cirrus clouds.
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spelling doaj.art-a94c4aff75094d968352e92184b7c2342023-12-01T23:23:54ZengMDPI AGAtmosphere2073-44332022-08-01138127910.3390/atmos13081279Coherent Backscattering by Large Ice Crystals of Irregular Shapes in Cirrus CloudsNatalia Kustova0Alexander Konoshonkin1Victor Shishko2Dmitry Timofeev3Anatoli Borovoi4Zhenzhu Wang5V.E. Zuev Institute of Atmospheric Optics SB RAS, Academician Zuev Sq. 1, 634055 Tomsk, RussiaV.E. Zuev Institute of Atmospheric Optics SB RAS, Academician Zuev Sq. 1, 634055 Tomsk, RussiaV.E. Zuev Institute of Atmospheric Optics SB RAS, Academician Zuev Sq. 1, 634055 Tomsk, RussiaV.E. Zuev Institute of Atmospheric Optics SB RAS, Academician Zuev Sq. 1, 634055 Tomsk, RussiaV.E. Zuev Institute of Atmospheric Optics SB RAS, Academician Zuev Sq. 1, 634055 Tomsk, RussiaKey Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaAll elements of the scattering matrix have been numerically studied for particles of irregular shapes whose size is much larger than incident wavelength. The calculations are performed in the physical optics approximation for a particle size of 20 μm at a wavelength of 0.532 μm. Here the scattered intensity reveals the backscattering coherent peak. It is shown that the polarization elements of the matrix reveal the surges within the backscattering peak. The angular width of the surges does not practically depend on particle shape, but depends on the particle size. It is shown that these surges are created by interference between the conjugate scattered waves propagating in the inverse directions. The results obtained are of interest for interpretation of lidar measurements in cirrus clouds.https://www.mdpi.com/2073-4433/13/8/1279physical optics approximationlight scatteringbackscatteringMueller matrixcirrus cloudsice crystals
spellingShingle Natalia Kustova
Alexander Konoshonkin
Victor Shishko
Dmitry Timofeev
Anatoli Borovoi
Zhenzhu Wang
Coherent Backscattering by Large Ice Crystals of Irregular Shapes in Cirrus Clouds
Atmosphere
physical optics approximation
light scattering
backscattering
Mueller matrix
cirrus clouds
ice crystals
title Coherent Backscattering by Large Ice Crystals of Irregular Shapes in Cirrus Clouds
title_full Coherent Backscattering by Large Ice Crystals of Irregular Shapes in Cirrus Clouds
title_fullStr Coherent Backscattering by Large Ice Crystals of Irregular Shapes in Cirrus Clouds
title_full_unstemmed Coherent Backscattering by Large Ice Crystals of Irregular Shapes in Cirrus Clouds
title_short Coherent Backscattering by Large Ice Crystals of Irregular Shapes in Cirrus Clouds
title_sort coherent backscattering by large ice crystals of irregular shapes in cirrus clouds
topic physical optics approximation
light scattering
backscattering
Mueller matrix
cirrus clouds
ice crystals
url https://www.mdpi.com/2073-4433/13/8/1279
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