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

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.

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• Item metadata

  Item type:	Article
  ID code:	16301
  Dates:	Date Event March 1993 Published
  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
  Depositing user:	Prof Robert M Kalin
  Date deposited:	17 Nov 2010 14:54
  Last modified:	19 Aug 2021 07:07
  URI:	https://strathprints.strath.ac.uk/id/eprint/16301