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Intercomparison of the influence of tropospheric clouds on UV-visible absorptions detected during the NDSC intercomparison campaign at OHP in June 1996

dc.contributor.authorPfeilsticker, K.
dc.contributor.authorArlander, D.W.
dc.contributor.authorBurrows, J.P.
dc.contributor.authorErle, F.
dc.contributor.authorGil, M.
dc.contributor.authorGoutail, F.
dc.contributor.authorHermans, C.
dc.contributor.authorLambert, J.-C.
dc.contributor.authorPlatt, U.
dc.contributor.authorPommereau, J.-P.
dc.contributor.authorRichter, A.
dc.contributor.authorSarkissian, A.
dc.contributor.authorVan Roozendael, M.
dc.contributor.authorWagner, T.
dc.contributor.authorWinterrath, T.
dc.date1999
dc.date.accessioned2017-05-09T11:58:42Z
dc.date.available2017-05-09T11:58:42Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/5364
dc.descriptionThe influence of tropospheric clouds on zenith sky light (or brief ZSL-DOAS) measurements of stratospheric gases is investigated. From a large set of intercomparison studies including six simultaneously operated UV/visible spectrometers, the zenith sky absorptions of O3, O4, NO2, and H2O are found to increase considerably under the investigated Cumulonimbus (Cb) cloud. The accuracy of the inferred visible O3 absorptions, however, are affected by interfering H2O absorptions. The increased cloudy sky absorptions are - attributed to increased pathlengths due to multiple Mie scattering and hence interstitial gaseous absorptions inside the cloud. The absorptions detected for chemically inert gases like O4 (and H2O) are found to be inconsistent with those detected for NO2 and O3. This finding indicates that O3 and NO2 are modified by cloud related transport or chemical processes.
dc.languageeng
dc.titleIntercomparison of the influence of tropospheric clouds on UV-visible absorptions detected during the NDSC intercomparison campaign at OHP in June 1996
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeGas absorption
dc.subject.freeLight scattering
dc.subject.freeNitrogen oxides
dc.subject.freeOzone
dc.subject.freeUltraviolet spectrometers
dc.subject.freeUpper atmosphere
dc.subject.freeWater absorption
dc.subject.freeNitrogen oxides
dc.subject.freeCumulonimbus cloud
dc.subject.freeMie scattering
dc.subject.freeNetwork for the detection of stratospheric change
dc.subject.freeRadiative transfer
dc.subject.freeTropospheric clouds
dc.subject.freeZenith sky light
dc.subject.freeClouds
dc.subject.freeTroposphere
dc.subject.freeoptical property
dc.subject.freetroposphere
dc.subject.freeultraviolet radiation
dc.subject.freeChemical process
dc.subject.freeCloudy skies
dc.subject.freeIntercomparisons
dc.subject.freeMeasurements of
dc.subject.freeMie scattering
dc.subject.freePathlengths
dc.subject.freeTropospheric clouds
dc.subject.freeUV-visible absorption
dc.source.titleGeophysical Research Letters
dc.source.volume26
dc.source.issue8
dc.source.page1169-1172
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/1999GL900198
dc.identifier.scopus2-s2.0-0033560521


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