Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/10419
DC FieldValueLanguage
dc.contributor.authorallDi Martino, R. M. R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
dc.contributor.authorallCamarda, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
dc.contributor.authorallGurrieri, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
dc.contributor.authorallValenza, M.; Università Degli Studi di Palermoen
dc.date.accessioned2016-12-22T10:39:48Zen
dc.date.available2016-12-22T10:39:48Zen
dc.date.issued2016en
dc.identifier.urihttp://hdl.handle.net/2122/10419en
dc.description.abstractThis paper focuses on the chemical composition changes in soil gases through both a theoretical model and laboratory experiments. The model describes the one-dimensional mass transfer process, which is triggered by changes in the flux parameters of the system, and the time-dependent evolution of the composition of the soil gases as a function of i) the pristine gas mixture, ii) the diffusivity of the chemicals, and iii) the thickness of the transited medium. Carbon dioxide (CO2), hydrogen (H2), and helium (He) were used in a laboratory-scale flux simulator to investigate the evolution of the gas composition profile in an artificial soil of constant thickness. The agreement between the theoretical calculations and the experimental results supports the validity of the model. Our results indicate a good reproducibility of the transient changes in the concentrations of CO2, He, and H2 in CO2-rich gas mixtures that contain He and H2 as trace gases. Finally, the theoretical results were used to analyze the H2 and CO2 continuous monitoring data collected at Etna volcano in 2010en
dc.language.isoEnglishen
dc.publisher.nameAmerican Geophysical Unionen
dc.relation.ispartofJournal of geophysical research - solid earthen
dc.relation.ispartofseries3/121 (2016)en
dc.subjectSoil gasesen
dc.subjectVolcanic gas compositionen
dc.subjectHydrogenen
dc.subjectCarbon dioxideen
dc.subjectCO2en
dc.subjectHeliumen
dc.titleAsynchronous changes of CO2, H2 and He concentrations in soil gases: a theoretical model and experimental resultsen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber1565–1583en
dc.identifier.URLhttp://onlinelibrary.wiley.com/doi/10.1002/2015JB012600/fullen
dc.subject.INGV03. Hydrosphere::03.04. Chemical and biological::03.04.05. Gasesen
dc.subject.INGV04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistryen
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoringen
dc.identifier.doi10.1002/2015JB012600en
dc.description.obiettivoSpecifico2V. Dinamiche di unrest e scenari pre-eruttivien
dc.description.obiettivoSpecifico5V. Sorveglianza vulcanica ed emergenzeen
dc.description.obiettivoSpecifico1IT. Reti di monitoraggio e Osservazionien
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.relation.issn0148-0227en
dc.contributor.authorDi Martino, R. M. R.en
dc.contributor.authorCamarda, M.en
dc.contributor.authorGurrieri, S.en
dc.contributor.authorValenza, M.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
dc.contributor.departmentUniversità Degli Studi di Palermoen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptDiSTeM, Universit a degli Studi di Palermo, Palermo, Italy-
crisitem.author.orcid0000-0001-6435-2759-
crisitem.author.orcid0000-0003-1527-7910-
crisitem.author.orcid0000-0003-4085-0440-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent03. Hydrosphere-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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