Show simple item record

dc.contributor.authorChou, Cedric
dc.contributor.authorVoigtländer, Jens
dc.contributor.authorUlanowski, Zbigniew
dc.contributor.authorHerenz, Paul
dc.contributor.authorBieligk, Henner
dc.contributor.authorClauss, Tina
dc.contributor.authorNiedermeier, Dennis
dc.contributor.authorHartmann, Susan
dc.contributor.authorRitter, Georg
dc.contributor.authorStratmann, F.
dc.date.accessioned2018-09-04T00:13:09Z
dc.date.available2018-09-04T00:13:09Z
dc.date.issued2018-09-27
dc.identifier.citationChou , C , Voigtländer , J , Ulanowski , Z , Herenz , P , Bieligk , H , Clauss , T , Niedermeier , D , Hartmann , S , Ritter , G & Stratmann , F 2018 , ' Surface roughness during depositional growth and sublimation of ice crystals ' , Atmospheric Chemistry and Physics , vol. 18 , no. 18 , pp. 13687-13702 . https://doi.org/10.5194/acp-2018-254
dc.identifier.issn1680-7316
dc.identifier.otherPURE: 15270964
dc.identifier.otherPURE UUID: 1e26906d-3db2-4648-8d69-8bee2f0e0a00
dc.identifier.otherScopus: 85054140401
dc.identifier.otherORCID: /0000-0003-4761-6980/work/62748727
dc.identifier.urihttp://hdl.handle.net/2299/20504
dc.descriptionFull version of an earlier discussion paper (Chou et al. 2018)
dc.description.abstractIce surface properties can modify the scattering properties of atmospheric ice crystals and therefore affect the radiative properties of mixed-phase and cirrus clouds. The Ice Roughness Investigation System (IRIS) is a new laboratory setup designed to investigate the conditions under which roughness develops on single ice crystals, based on their size, morphology and growth conditions (relative humidity and temperature). Ice roughness is quantified through the analysis of speckle in 2-D light-scattering patterns. Characterization of the setup shows that a supersaturation of 20 % with respect to ice and a temperature at the sample position as low as-40 °C could be achieved within IRIS. Investigations of the influence of humidity show that higher supersaturations with respect to ice lead to enhanced roughness and irregularities of ice crystal surfaces. Moreover, relative humidity oscillations lead to gradual ratcheting-up of roughness and irregularities, as the crystals undergo repeated growth-sublimation cycles. This memory effect also appears to result in reduced growth rates in later cycles. Thus, growth history, as well as supersaturation and temperature, influences ice crystal growth and properties, and future atmospheric models may benefit from its inclusion in the cloud evolution process and allow more accurate representation of not just roughness but crystal size too, and possibly also electrification properties.en
dc.format.extent16
dc.language.isoeng
dc.relation.ispartofAtmospheric Chemistry and Physics
dc.subjectAtmospheric Science
dc.titleSurface roughness during depositional growth and sublimation of ice crystalsen
dc.contributor.institutionCentre for Atmospheric and Climate Physics Research
dc.contributor.institutionLight Scattering & Radiactive Properties
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85054140401&partnerID=8YFLogxK
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.5194/acp-2018-254
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record