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    Stratospheric aerosol data records for the climate change initiative: Development, validation and application to chemistry-climate modelling

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    Authors
    Bingen, C.
    Robert, C.E.
    Stebel, K.
    Brühl, C.
    Schallock, J.
    Vanhellemont, F.
    Mateshvili, N.
    Höpfner, M.
    Trickl, T.
    Barnes, J.E.
    Jumelet, J.
    Vernier, J.-P.
    Popp, T.
    de Leeuw, G.
    Pinnock, S.
    Show allShow less
    Discipline
    Earth and related Environmental sciences
    Subject
    Aerosols
    Atmospheric radiation
    Climate models
    Light extinction
    Optical radar
    Volcanoes
    Aerosol remote sensing
    Climate data records
    ENVISAT
    GOMOS
    Stratospheric aerosol extinction
    Volcanic eruptions
    Climate change
    aerosol
    algorithm
    climate change
    climate modeling
    cloud radiative forcing
    data set
    Envisat
    extinction coefficient
    GOMOS
    lidar
    MIPAS
    polar stratospheric cloud
    radiative forcing
    remote sensing
    satellite mission
    simulation
    stratosphere
    volcanic eruption
    Antarctica
    Basse Terre
    Dumont d'Urville
    East Antarctica
    Ethiopia
    Guadeloupe
    Hawaii [(ISL) Hawaiian Islands]
    Hawaii [United States]
    Hawaiian Islands
    Leeward Islands [Lesser Antilles]
    Mauna Loa
    Nabro
    Soufriere
    Audience
    Scientific
    Date
    2017
    Metadata
    Show full item record
    Description
    This paper presents stratospheric aerosol climate records developed in the framework of the Aerosol_cci project, one of the 14 parallel projects from the ESA Climate Change Initiative. These data records were processed from a stratospheric aerosol dataset derived from the GOMOS experiment, using an inversion algorithm optimized for aerosol retrieval, called AerGOM. They provide a suite of aerosol parameters, such as the aerosol extinction coefficient at different wavelengths in the UV–visible range. The extinction record includes the total extinction as well as separate fields for liquid sulfate aerosols and polar stratospheric clouds (PSCs). Several additional fields (PSC flag, etc.) are also provided. The resulting stratospheric aerosol dataset, which spans the whole duration of the GOMOS mission (2002 − 2012), was validated using different reference datasets (lidar and balloon profiles). In the present paper, the emphasis is put on the extinction records. After a thorough analysis of the original AerGOM dataset, we describe the methodology used to construct the gridded CCI-GOMOS dataset and the resulting improvements on both the AerGOM algorithm and the binning procedure, in terms of spatio-temporal resolution, coverage and data quality. The extinction datasets were validated using lidar profiles from three ground-based stations (Mauna Loa, Garmisch-Partenkirchen, Dumont d'Urville). The median difference of the CCI-GOMOS (Level 3) extinction and ground-based lidar profiles is between ~ 15% and ~ 45% in the 16–21 km altitude range, depending on the considered site and aerosol type. The CCI-GOMOS dataset was subsequently used, together with a MIPAS SO2 time series, to update a volcanic eruption inventory published previously, thus providing a more comprehensive list of eruptions for the ENVISAT period (2002–2012). The number of quantified eruptions increases from 102 to 230 in the updated inventory. This new inventory was used to simulate the evolution of the global radiative forcing by application of the EMAC chemistry-climate model. Results of this simulation improve the agreement between modelled global radiative forcing of stratospheric aerosols at about 100 hPa compared to values estimated from observations. Medium eruptions like the ones of Soufriere Hills/Rabaul (2006), Sarychev (2009) and Nabro (2011) cause a forcing change from about − 0.1 W/m2 to − 0.2 W/m2.
    Citation
    Bingen, C.; Robert, C.E.; Stebel, K.; Brühl, C.; Schallock, J.; Vanhellemont, F.; Mateshvili, N.; Höpfner, M.; Trickl, T.; Barnes, J.E.; Jumelet, J.; Vernier, J.-P.; Popp, T.; de Leeuw, G.; Pinnock, S. (2017). Stratospheric aerosol data records for the climate change initiative: Development, validation and application to chemistry-climate modelling. , Remote Sensing of Environment, Vol. 203, 296-321, DOI: 10.1016/j.rse.2017.06.002.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/6353
    doi: http://dx.doi.org/10.1016/j.rse.2017.06.002
    scopus: 2-s2.0-85022089612
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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