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

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    Thomas(2005).pdf (1.287Mb)
    Authors
    Thomas, W.
    Erbertseder, T.
    Ruppert, T.
    Van Roozendael, M.
    Verdebout, J.
    Balis, D.
    Meleti, C.
    Zerefos, C.
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    Discipline
    Earth and related Environmental sciences
    Subject
    ozone
    sulfur dioxide
    sulfur dioxide
    trace gas
    volcanic eruption
    article
    chemical analysis
    environmental monitoring
    geographic distribution
    Italy
    mathematical computing
    meteorological phenomena
    quantitative analysis
    reliability
    spectrometry
    statistical analysis
    statistical significance
    troposphere
    volcano
    Catania [Sicily]
    Eastern Hemisphere
    Etna
    Eurasia
    Europe
    Italy
    Sicily
    Southern Europe
    World
    Audience
    Scientific
    Date
    2005
    Metadata
    Show full item record
    Description
    We 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.
    Citation
    Thomas, W.; Erbertseder, T.; Ruppert, T.; Van Roozendael, M.; Verdebout, J.; Balis, D.; Meleti, C.; Zerefos, C. (2005). On the retrieval of volcanic sulfur dioxide emissions from GOME backscatter measurements. , Journal of Atmospheric Chemistry, Vol. 50, Issue 3, 295-320, DOI: 10.1007/s10874-005-5544-1.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/4624
    doi: http://dx.doi.org/10.1007/s10874-005-5544-1
    scopus: 2-s2.0-20344407592
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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