Influence of atmospheric circulation on regional (CO2)-C-14 differences.

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dc.contributor.authorHua, Qen_AU
dc.contributor.authorBarbetti, Men_AU
dc.date.accessioned2008-04-09T05:39:21Zen_AU
dc.date.accessioned2010-04-30T05:03:32Zen_AU
dc.date.available2008-04-09T05:39:21Zen_AU
dc.date.available2010-04-30T05:03:32Zen_AU
dc.date.issued2007-10-04en_AU
dc.date.statistics2007-10en_AU
dc.description.abstractDetailed analyses of published C-14 data from tree rings and atmospheric CO2 samples for the northern tropics in Asia (India, Thailand, and Vietnam) and Africa (Ethiopia) have been performed for the heavily bomb-influenced period 1963-1967 A.D. The results show that the Asian summer monsoon and Intertropical Convergence Zone (ITCZ) position influenced atmospheric (CO2)-C-14 over the study area. Similar analyses of atmospheric records for northern and western Europe, northwestern Africa, and the northeastern United States and tree ring data for east Asia show that the Northern Hemisphere distribution of bomb C-14 for 1963-1967 depended on atmospheric circulation controlled by the seasonal positions of Hadley cell boundaries and the ITCZ. The distribution of C-14 did not have a simple latitudinal dependence. This work shows that the seasonal atmospheric circulation patterns are crucial for the description of atmospheric C-14 gradients during the bomb peak period. These principles can be applied to the interpretation of the small intrahemispheric C-14 offsets of the remote past. © 2007, American Geophysical Unionen_AU
dc.identifier.articlenumberD19102en_AU
dc.identifier.citationHua, Q., & Barbetti, M. (2007). Influence of atmospheric circulation on regional (CO2)-C-14 differences. Journal of Geophysical Research: Atmospheres, 112(D19), D19102. doi:10.1029/2006JD007898en_AU
dc.identifier.govdoc1229en_AU
dc.identifier.issn0148-0227en_AU
dc.identifier.issueD19en_AU
dc.identifier.journaltitleJournal of Geophysical Research: Atmospheresen_AU
dc.identifier.pagination1-13en_AU
dc.identifier.urihttp://dx.doi.org/10.1029/2006JD007898en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1054en_AU
dc.identifier.volume112en_AU
dc.language.isoenen_AU
dc.publisherAmerican Geophysical Unionen_AU
dc.subjectAtmospheresen_AU
dc.subjectAtmospheric circulationen_AU
dc.subjectCarbon dioxideen_AU
dc.subjectAsiaen_AU
dc.titleInfluence of atmospheric circulation on regional (CO2)-C-14 differences.en_AU
dc.typeJournal Articleen_AU
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