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On the retrieval of volcanic sulfur dioxide emissions from GOME backscatter measurements

dc.contributor.authorThomas, W.
dc.contributor.authorErbertseder, T.
dc.contributor.authorRuppert, T.
dc.contributor.authorVan Roozendael, M.
dc.contributor.authorVerdebout, J.
dc.contributor.authorBalis, D.
dc.contributor.authorMeleti, C.
dc.contributor.authorZerefos, C.
dc.date2005
dc.date.accessioned2016-12-07T10:36:06Z
dc.date.available2016-12-07T10:36:06Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/4624
dc.descriptionWe focus on the retrieval of volcanic sulfur dioxide (SO2) emissions from an analysis of atmospheric UV backscatter spectra obtained by the Global Ozone Monitoring Experiment (GOME) spectrometer on board the ESA European Remote Sensing Satellite (ERS-2). Here, the last major eruptions of Mt. Etna on Sicily (Italy) in July/August 2001 and October/November 2002 provided an excellent opportunity to study the retrieval of SO2 columnar amounts from ground-based, LIDAR and satellite measurements. Our study shows that the bulk of emitted SO2 was confined in the troposphere, mainly between 700 hPa and 400 hPa which is confirmed by trajectory analysis, by LIDAR observations and AVHRR observations. The area of influence of Mt. Etna eruptions ranges from the Western Saharan Desert to Greece and the near east states and even down to the basin of Tschad, Africa. Our analysis revealed that information about the plume height of volcanic eruptions and aerosol parameters is necessary for a reliable quantitative retrieval of SO2 from space-borne sensor data at periods perturbed by volcanic eruptions.
dc.languageeng
dc.titleOn the retrieval of volcanic sulfur dioxide emissions from GOME backscatter measurements
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeozone
dc.subject.freesulfur dioxide
dc.subject.freesulfur dioxide
dc.subject.freetrace gas
dc.subject.freevolcanic eruption
dc.subject.freearticle
dc.subject.freechemical analysis
dc.subject.freeenvironmental monitoring
dc.subject.freegeographic distribution
dc.subject.freeItaly
dc.subject.freemathematical computing
dc.subject.freemeteorological phenomena
dc.subject.freequantitative analysis
dc.subject.freereliability
dc.subject.freespectrometry
dc.subject.freestatistical analysis
dc.subject.freestatistical significance
dc.subject.freetroposphere
dc.subject.freevolcano
dc.subject.freeCatania [Sicily]
dc.subject.freeEastern Hemisphere
dc.subject.freeEtna
dc.subject.freeEurasia
dc.subject.freeEurope
dc.subject.freeItaly
dc.subject.freeSicily
dc.subject.freeSouthern Europe
dc.subject.freeWorld
dc.source.titleJournal of Atmospheric Chemistry
dc.source.volume50
dc.source.issue3
dc.source.page295-320
Orfeo.peerreviewedYes
dc.identifier.doi10.1007/s10874-005-5544-1
dc.identifier.scopus2-s2.0-20344407592


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