Preliminary laboratory studies of the optical scattering properties of the crystal clouds

Ice crystal clouds have an influence on the radiative budget of the earth; however, the exact size and nature of this influence has yet to be determined. A laboratory cloud chamber experiment has been set up to provide data on the optical scattering behaviour of ice crystals at a visible wavelen...

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Main Authors:	C. Saunders, J. Rimmer, P. Jonas, J. Arathoon, C. Liu
Format:	Article
Language:	English
Published:	Copernicus Publications 1998-05-01
Series:	Annales Geophysicae
Online Access:	https://www.ann-geophys.net/16/618/1998/angeo-16-618-1998.pdf

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spelling	doaj-da00b83f8754447183e11222ab8b484a2020-11-25T00:52:18ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05761998-05-011661862710.1007/s00585-998-0618-4Preliminary laboratory studies of the optical scattering properties of the crystal cloudsC. Saunders0J. Rimmer1P. Jonas2J. Arathoon3C. Liu4Physics Department, University of Manchester Institute of Science and Technology, Sackville Street, Manchester, M60 1QD, UKPhysics Department, University of Manchester Institute of Science and Technology, Sackville Street, Manchester, M60 1QD, UKPhysics Department, University of Manchester Institute of Science and Technology, Sackville Street, Manchester, M60 1QD, UKPhysics Department, University of Manchester Institute of Science and Technology, Sackville Street, Manchester, M60 1QD, UKDepartment of Meteorology, The University of Reading, Earley Gate, PO Box 243, Reading, RG6 6BB, UKIce crystal clouds have an influence on the radiative budget of the earth; however, the exact size and nature of this influence has yet to be determined. A laboratory cloud chamber experiment has been set up to provide data on the optical scattering behaviour of ice crystals at a visible wavelength in order to gain information which can be used in climate models concerning the radiative characteristics of cirrus clouds. A PMS grey-scale probe is used to monitor simultaneously the cloud microphysical properties in order to correlate these closely with the observed radiative properties. Preliminary results show that ice crystals scatter considerably more at 90° than do water droplets, and that the halo effects are visible in a laboratory-generated cloud when the ice crystal concentration is sufficiently small to prevent masking from multiple scattering.<br><br><b>Key words.</b> Meteorology and atmosphere dynamics · Climatology · Radiative process · Atmospheric composition and structure · Cloud physics and chemistry</p>https://www.ann-geophys.net/16/618/1998/angeo-16-618-1998.pdf
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	C. Saunders J. Rimmer P. Jonas J. Arathoon C. Liu
spellingShingle	C. Saunders J. Rimmer P. Jonas J. Arathoon C. Liu Preliminary laboratory studies of the optical scattering properties of the crystal clouds Annales Geophysicae
author_facet	C. Saunders J. Rimmer P. Jonas J. Arathoon C. Liu
author_sort	C. Saunders
title	Preliminary laboratory studies of the optical scattering properties of the crystal clouds
title_short	Preliminary laboratory studies of the optical scattering properties of the crystal clouds
title_full	Preliminary laboratory studies of the optical scattering properties of the crystal clouds
title_fullStr	Preliminary laboratory studies of the optical scattering properties of the crystal clouds
title_full_unstemmed	Preliminary laboratory studies of the optical scattering properties of the crystal clouds
title_sort	preliminary laboratory studies of the optical scattering properties of the crystal clouds
publisher	Copernicus Publications
series	Annales Geophysicae
issn	0992-7689 1432-0576
publishDate	1998-05-01
description	Ice crystal clouds have an influence on the radiative budget of the earth; however, the exact size and nature of this influence has yet to be determined. A laboratory cloud chamber experiment has been set up to provide data on the optical scattering behaviour of ice crystals at a visible wavelength in order to gain information which can be used in climate models concerning the radiative characteristics of cirrus clouds. A PMS grey-scale probe is used to monitor simultaneously the cloud microphysical properties in order to correlate these closely with the observed radiative properties. Preliminary results show that ice crystals scatter considerably more at 90° than do water droplets, and that the halo effects are visible in a laboratory-generated cloud when the ice crystal concentration is sufficiently small to prevent masking from multiple scattering.<br><br><b>Key words.</b> Meteorology and atmosphere dynamics · Climatology · Radiative process · Atmospheric composition and structure · Cloud physics and chemistry</p>
url	https://www.ann-geophys.net/16/618/1998/angeo-16-618-1998.pdf
work_keys_str_mv	AT csaunders preliminarylaboratorystudiesoftheopticalscatteringpropertiesofthecrystalclouds AT jrimmer preliminarylaboratorystudiesoftheopticalscatteringpropertiesofthecrystalclouds AT pjonas preliminarylaboratorystudiesoftheopticalscatteringpropertiesofthecrystalclouds AT jarathoon preliminarylaboratorystudiesoftheopticalscatteringpropertiesofthecrystalclouds AT cliu preliminarylaboratorystudiesoftheopticalscatteringpropertiesofthecrystalclouds
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Preliminary laboratory studies of the optical scattering properties of the crystal clouds

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