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Publication:
Simultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques

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cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
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cris.virtualsource.author-orcid977d8363-4cee-48f8-9b0d-32b4267fd06e
dc.contributor.authorGüllük, T.
dc.contributor.authorSlemr, F.
dc.contributor.authorStauffer, Bernhard
dc.date.accessioned2024-09-02T17:49:29Z
dc.date.available2024-09-02T17:49:29Z
dc.date.issued1998
dc.description.abstractA sublimation technique has been developed to extract air samples from polar ice cores for subsequent simultaneous measurement of several trace gases by frequency-modulated tunable diode laser absorption spectroscopy. This extraction and analysis technique is shown to be suitable as an extraction method for the determination of concentrations of the greenhouse gases CO2, CH4, and N2O in air samples of ∼1–5 cm3 recovered from ice samples of 10–50 g. Air samples from the Siple ice core have been analyzed covering the period between 1772 and 1973. In addition, a few samples from two different ice cores from Vostok station have been analyzed. Our results are in a good agreement with results obtained by other researchers using melting and crushing extraction techniques. This agreement indicates that processes connected with the formation of clathrates in ice under high pressure at greater depths and their destruction after drilling are not affecting the CO2, CH4, and N2O measurements significantly.
dc.description.numberOfPages8
dc.description.sponsorshipPhysikalisches Institut
dc.identifier.doi10.48350/158738
dc.identifier.publisherDOI10.1029/98JD00686
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/43350
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.relation.ispartofJournal of Geophysical Research: Atmospheres
dc.relation.issn2169-897X
dc.relation.organizationDCD5A442C44AE17DE0405C82790C4DE2
dc.relation.organizationDCD5A442BF29E17DE0405C82790C4DE2
dc.subject.ddc500 - Science::530 - Physics
dc.titleSimultaneous measurements of CO2, CH4, and N2O in air extracted by sublimation from Antarctica ice cores: Confirmation of the data obtained using other extraction techniques
dc.typearticle
dspace.entity.typePublication
oaire.citation.endPage15978
oaire.citation.issueD13
oaire.citation.startPage15971
oaire.citation.volume103
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oairecerif.author.affiliationPhysikalisches Institut
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unibe.contributor.rolecreator
unibe.date.licenseChanged2021-09-28 06:50:05
unibe.description.ispublishedpub
unibe.eprints.legacyId158738
unibe.refereedTRUE
unibe.subtype.articlejournal

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