Review of radiocarbon data from atmospheric and tree ring samples for the period 1945-1997 AD

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dc.contributor.authorHua, Qen_AU
dc.contributor.authorBarbetti, Men_AU
dc.contributor.authorWorbes, Men_AU
dc.contributor.authorHead, Jen_AU
dc.date.accessioned2021-06-30T23:17:13Zen_AU
dc.date.available2021-06-30T23:17:13Zen_AU
dc.date.issued1999-01-01en_AU
dc.date.statistics2021-06-30en_AU
dc.descriptionThis article is Open Accessen_AU
dc.description.abstractA summary of 14C data from atmospheric sampling and measurements on wood from annual tree rings for the period 1945-1997 AD is presented and evaluated. Atmospheric records are characterized by different distributions of bomb-test 14C between the Northern and Southern Hemispheres, latitude dependence, and seasonal fluctuations. Radiocarbon data from tree rings are summarised and plotted against atmospheric records from similar latitudes. In some cases, discrepancies are found. Possible reasons for this include: 1) the use of stored carbohydrate from the previous year, 2) different 14C levels in the air around subcanopy trees due to respiration of CO2, 3) regional and local effects of anthropogenic CO2 and 14C sources, 4) sampling of wood material too close to ring boundaries, and 5) insufficient pretreatment of tree ring samples for dating. But in cases where trees were carefully selected and the samples adequately pretreated, radiocarbon data from tree rings show excellent agreement with direct atmospheric sampling records. © Brill 1999 (Open Access)en_AU
dc.identifier.citationHua, Q., Barbetti, M., Worbes, M., Head, J., & Levchenko, V. A. (1999). Review of radiocarbon data from atmospheric and tree ring samples for the period 1945-1997 AD. IAWA journal, 20(3), 261-283. doi:10.1163/22941932-90000690en_AU
dc.identifier.issn2294-1932en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleIAWA journalen_AU
dc.identifier.pagination261-283en_AU
dc.identifier.urihttps://doi.org/10.1163/22941932-90000690en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11011en_AU
dc.identifier.volume20en_AU
dc.language.isoenen_AU
dc.publisherBrillen_AU
dc.subjectEarth atmosphereen_AU
dc.subjectAtmospheric explosionsen_AU
dc.subjectNuclear explosionsen_AU
dc.subjectTree ringsen_AU
dc.subjectDataen_AU
dc.subjectAustraliaen_AU
dc.subjectThailanden_AU
dc.titleReview of radiocarbon data from atmospheric and tree ring samples for the period 1945-1997 ADen_AU
dc.typeJournal Articleen_AU
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