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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/720
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dc.contributor.authorallO'Dwyer, M.; Department of Physics and Astronomy, University of Glasgow, Glasgow, UKen
dc.contributor.authorallPadgett, M. J.; Department of Physics and Astronomy, University of Glasgow, Glasgow, UKen
dc.contributor.authorallMcGonigle, A. J. S.; Department of Geography, University of Cambridge, Cambridge, UKen
dc.contributor.authorallOppenheimer, C.; Department of Geography, University of Cambridge, Cambridge, UKen
dc.contributor.authorallInguaggiato, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
dc.date.accessioned2006-02-14T13:58:00Zen
dc.date.available2006-02-14T13:58:00Zen
dc.date.issued2003en
dc.identifier.urihttp://hdl.handle.net/2122/720en
dc.description.abstractSulphur speciation in volcanic gases acts as a major redox buffer, and H2S/SO2 ratios represent a valuable indicator of magmatic conditions and interactions between magmatic and hydrothermal fluids. However, measurement of H2S/SO2 even by direct sampling techniques, is not straightforward. We report here on application of a small ultraviolet spectrometer for real-time field measurement of H2S and SO2 concentrations, using open-path and extractive configurations. The device was tested at fumaroles on Solfatara and Vulcano, Italy, in November 2002. H2S concentrations of up to 220ppmm(400 ppmv) were measured directly above the Bocca Grande fumarole at Solfatara, and H2S/SO2 molar ratios of 2 and 2.4, respectively, were determined for the ‘F11’ and ‘F0’ fumaroles at Vulcano. In comparison with other optical techniques capable of multiple volcanic gas measurements, such as laser and FTIR spectroscopy, this approach is considerably simpler and cheaper, with the potential for autonomous, sustained hightime resolution operation.en
dc.format.extent503 bytesen
dc.format.extent124998 bytesen
dc.format.mimetypetext/htmlen
dc.format.mimetypeapplication/pdfen
dc.language.isoEnglishen
dc.publisher.nameAmerican Geophysical Unionen
dc.relation.ispartofGeophysical Research Lettersen
dc.relation.ispartofseries12/30(2003)en
dc.subjectRemote monitoringen
dc.subjectPlume chemistryen
dc.subjectsulphur speciesen
dc.titleReal-time measurement of volcanic H2S and SO2 concentrations by UV spectroscopyen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber1652en
dc.identifier.URLhttp://www.agu.org/en
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.01. Gasesen
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoringen
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniquesen
dc.identifier.doi10.1029/2003GL017246en
dc.relation.referencesAndres, R. J., and A. D. Kasgnoc, A time-averaged inventory of subaerial volcanic sulfur emissions, J. Geophys. Res., 103, 25251–25261, 1998. Chiodini, G., R. Cioni, L. Marini, and C. Panichi, Origin of the fumarolic fluids of Vulcano Island, Italy and implications for volcanic surveillance,Bull. Volcanol., 57, 99–110, 1995. Chiodini, G., F. Frondini, C. Cardellini, D. Granieri, L. Marini, and G. Ventura, CO2 degassing and energy release at Solfatara volcano, Campi Flegrei, Italy, J. Geophys. Res., 106(B8), 16213–16221, 2001. Galle, B., C. Oppenheimer, A. Geyer, A. J. S. McGonigle, M. Edmonds,and L. A. Horrocks, A miniaturised ultraviolet spectrometer for remote sensing of SO2 fluxes: a new tool for volcano surveillance, J. Volcanol. Geotherm. Res., 119, 241–254, 2003. Giggenbach, W. F., A simple method for the collection and analysis of volcanic gas samples, Bull. Volc., 39, 15–27, 1975. Giggenbach,W. F., D. Tedesco, Y. Sulistiyo, A. Caprai, R. Cioni, R. Favara,T. P. Fischer, J. I. Hirabayashi, M. Korzhinsky, M. Martini, I. Menyailov,and H. Shinohara, J. Volcanol. Geotherm. Res., 108, 157–172, 2001. Giggenbach, W. F., Chemical composition of volcanic gases, in Monitoring and Mitigation of Volcano Hazards, edited by R. Scarpa and R. I. Tilling,Springer-Verlag, Berlin, 221–256, 1996. Halmer, M. M., H.-U. Schmincke, and H.-F. Graf, The annual volcanic gas input into the atmosphere, in particular into the stratosphere: a global dataset for the past 100 years, J. Volcanol. Geotherm. Res., 115, 511–528, 2002. McGee, K. A., M. P. Doukas, and T. M. Gerlach, Quiescent hydrogen sulfide and carbon dioxide degassing from Mount Baker, Washington, Geophys. Res. Lett., 28, 4479–4482, 2001. McGonigle, A. J. S., and C. Oppenheimer, Optical sensing of volcanic gas and aerosol emissions in Volcanic Degassing, Geol. Soc. Spec. Pub., in press, 2003. McGonigle, A. J. S., C. Oppenheimer, B. Galle, T. A. Mather, and D. M. Pyle, Walking traverse and scanning DOAS measurements of volcanic gas emission rates, Geophys. Res. Lett., 29(20), doi:10.1029/2002GL015827,2002. Montegrossi, G., F. Tassi, O. Vaselli, A. Buccianti, and K. Garofalo, Sulfur species in volcanic gases, Anal., Chem., 73, 3709–3715, 2001. Rose, W. I., G. J. S. Bluth, and G. G. J. Ernst, Integrating retrievals of volcanic cloud characteristics from satellite remote sensors: A summary,Phil. Trans. R. Soc. Lond. A, 358, 1585– 1606, 2000. Saito, G., H. Shinohara, and K. Kazahaya, Successive sampling of fumarolic gases and Satsuma-Iwojima and Kuju volcanoes, southwest Japan: Evaluation of short-term variations and precision of the gas sampling and analytical techniques, Geochem. J., 36, 1–20, 2002. Symonds, R. B., W. I. Rose, G. J. S. Bluth, and T. M. Gerlach, Volcanic gas studies-methods, results, and applications, Rev. in Mineral., 30, 1– 66,1994. Willer, U., D. Scheel, I. Kostjucenko, C. Bohling, W. Schade, and E. Faber,Fiber-optic evanescent-field laser sensor for in-situ gas diagnostics, Spectrochimica Acta Part A, 58, 2427–2432, 2002.en
dc.description.fulltextpartially_openen
dc.contributor.authorO'Dwyer, M.en
dc.contributor.authorPadgett, M. J.en
dc.contributor.authorMcGonigle, A. J. S.en
dc.contributor.authorOppenheimer, C.en
dc.contributor.authorInguaggiato, S.en
dc.contributor.departmentDepartment of Physics and Astronomy, University of Glasgow, Glasgow, UKen
dc.contributor.departmentDepartment of Physics and Astronomy, University of Glasgow, Glasgow, UKen
dc.contributor.departmentDepartment of Geography, University of Cambridge, Cambridge, UKen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptDepartment of Physics and Astronomy, University of Glasgow, Glasgow, UK-
crisitem.author.deptDepartment of Physics and Astronomy, University of Glasgow, Glasgow, UK-
crisitem.author.deptDepartment of Geography, University of Cambridge, Downing Place, CB2 3EN Cambridge, UK-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.orcid0000-0003-4506-7260-
crisitem.author.orcid0000-0003-3726-9946-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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