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Ultraviolet absorption cross-sections of chloro and chlorofluoro-methanes at stratospheric temperatures

dc.contributor.authorSimon, P.C.
dc.contributor.authorGillotay, D.
dc.contributor.authorVanlaethem-Meuree, N.
dc.contributor.authorWisemberg, J.
dc.date1988
dc.date.accessioned2017-06-08T12:20:54Z
dc.date.available2017-06-08T12:20:54Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/5772
dc.descriptionAbsorption cross-sections of nine halomethanes (CCl4, CHCl3, CH2Cl2, CH3Cl, CFCl3, CF2Cl2, CF3Cl, CHFCl2, and CHF2Cl), measured between 174 and 250 nm for temperatures ranging from 225 to 295 K, are presented with uncertainties ranging from 2 to 4% and compared with previous determinations made for comparable temperature ranges. The largest temperature effect which takes place near the absorption threshold, decreases the absorption cross-section up to 50% for highly chlorinated methanes, but is negligible for molecules highly stabilized by hydrogen and/or fluorine. Extrapolated values for temperatures of aeronomical interest are presented, as well as parametrical formulas which give absorption cross-section values for given wavelength and temperature ranges.
dc.languageeng
dc.titleUltraviolet absorption cross-sections of chloro and chlorofluoro-methanes at stratospheric temperatures
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freechlorofluorocarbon
dc.subject.freechlorofluoromethane
dc.subject.freechloromethane
dc.subject.freehalomethane
dc.subject.freephotodissociation coefficient
dc.subject.freeultraviolet absorption
dc.subject.freemethyl chloride
dc.subject.freechlorofluoromethane
dc.subject.freephotodissociation
dc.subject.freestratosphere
dc.subject.freetemperature
dc.subject.freeultraviolet radiation
dc.source.titleJournal of Atmospheric Chemistry
dc.source.volume7
dc.source.issue2
dc.source.page107-135
Orfeo.peerreviewedYes
dc.identifier.doi10.1007/BF00048042
dc.identifier.scopus2-s2.0-0023822447


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