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A possible paleoclimatic enso indicator in the spatial variation of annual tree-ring C-14

Jirikowic, J.L. and Kalin, R. (1993) A possible paleoclimatic enso indicator in the spatial variation of annual tree-ring C-14. Geophysical Research Letters, 20 (6). pp. 439-442. ISSN 0094-8276

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Abstract

Preliminary investigations show regional differences in atmospheric C-14 activity archived in tree-ring cellulose may reflect oceanic and atmospheric shifts associated with ENSO (El Nino-Southern Oscillation) events. Much of the shared variation between sites in Washington and Arizona can be attributed to global forcings such as anthropogenic C-14-depleted CO2 emissions and modulation of C-14 production. The contrasted residual variation between the Washington and Arizona data sets correlates with the annual Southern Oscillation Index (SOI) of the previous year. The spatial differences between DELTAC-14 data sets may provide a proxy indicator of ENSO phenomenon.

Item type: Article
ID code: 16301
Keywords: tree-ring cellulose, oceanic and atmospheric shifts, ENSO events, El Nino-Southern Oscillation events, Engineering (General). Civil engineering (General), Geophysics, Earth and Planetary Sciences(all)
Subjects: Technology > Engineering (General). Civil engineering (General)
Department: Faculty of Engineering > Civil and Environmental Engineering
Related URLs:
    Depositing user: Prof Robert M Kalin
    Date Deposited: 17 Nov 2010 14:54
    Last modified: 05 Sep 2014 00:42
    URI: http://strathprints.strath.ac.uk/id/eprint/16301

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