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dc.contributor.authorHeymsfield, Andrew J.
dc.contributor.authorKraemer, Martina
dc.contributor.authorBrown, Philip
dc.contributor.authorCziczo, Dan
dc.contributor.authorFranklin, Charmaine
dc.contributor.authorLawson, Paul
dc.contributor.authorLohmann, Ulrike
dc.contributor.authorLuebke, Anna
dc.contributor.authorMcFarquhar, Greg
dc.contributor.authorUlanowski, Zbigniew
dc.contributor.authorVan Tricht, Kristof
dc.date.accessioned2017-04-25T15:04:42Z
dc.date.available2017-04-25T15:04:42Z
dc.date.issued2017
dc.identifier.citationHeymsfield , A J , Kraemer , M , Brown , P , Cziczo , D , Franklin , C , Lawson , P , Lohmann , U , Luebke , A , McFarquhar , G , Ulanowski , Z & Van Tricht , K 2017 , ' Cirrus clouds ' , Meteorological Monographs , vol. 58 , pp. 2.1–2.26 . https://doi.org/10.1175/AMSMONOGRAPHS-D-16-0010.1
dc.identifier.issn0065-9401
dc.identifier.otherPURE: 10729656
dc.identifier.otherPURE UUID: d243746e-3a76-49d9-9eb3-20ae4f6c7b30
dc.identifier.otherORCID: /0000-0003-4761-6980/work/32374609
dc.identifier.urihttp://hdl.handle.net/2299/18008
dc.descriptionAndrew J. Heymsfield, Martina Kramer, Anna Luebke, Phil Brown, Daniel J. Cziczo, Charmaine Franklin, Ulrike Lohmann, Greg McFarquhar, Zbigniew Ulanowski and Kristof Van Trich, American Meteorological Society , January 2017, this article has been published in final form at DOI: http://dx.doi.org/10.1175/AMSMONOGRAPHS-D-16-0010.1 Published by AMS Publications © 2017 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (http://www.ametsoc.org/PUBSCopyrightPolicy).
dc.description.abstractThe goal of this article is to synthesize information about what is now known about one of the three main types of clouds, cirrus, and to identify areas where more knowledge is needed. Cirrus clouds, composed of ice particles, form primarily in the upper troposphere, where temperatures are generally below -30°C. Satellite observations show that the maximum-occurrence frequency of cirrus is near the tropics, with a large latitudinal movement seasonally. In-situ measurements obtained over a wide range of cloud types, formation mechanisms, temperatures, and geographical locations indicate that the ice water content and particle size generally decrease with decreasing temperature, whereas the ice particle concentration is nearly constant or increase slightly with decreasing temperature. High ice concentrations, sometimes observed in strong updrafts , results from homogeneous nucleation. The satellite-based and in-situ measurements indicate that cirrus ice crystals typically depart from the simple, idealized geometry for smooth hexagonal shapes, indicating complexity and/or surface roughness. Their shapes significantly impact cirrus radiative properties and feedbacks to climate. Cirrus clouds, one of the most uncertain components of general circulation models (GCM), pose one of the greatest challenges in predicting the rate and geographical pattern of climate change. Improved measurements of the properties and size distributions and surface structure of small ice crystals — about 20 μm, and identifying the dominant ice nucleation process — heterogeneous versus homogeneous ice nucleation, under different cloud dynamical forcings, will lead to a better representation of their properties in GCM and in modeling their current and future effects on climate.en
dc.language.isoeng
dc.relation.ispartofMeteorological Monographs
dc.subjectcirrus clouds
dc.titleCirrus cloudsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Atmospheric and Climate Physics Research
dc.contributor.institutionLight Scattering & Radiactive Properties
dc.description.statusPeer reviewed
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1175/AMSMONOGRAPHS-D-16-0010.1
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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