A 10-century comparison of prominent bipolar volcanic events in ice cores
Article first published online: 21 SEP 2012
Copyright 1995 by the American Geophysical Union.
Journal of Geophysical Research: Atmospheres (1984–2012)
Volume 100, Issue D8, pages 16241–16247, 20 August 1995
How to Cite
1995), A 10-century comparison of prominent bipolar volcanic events in ice cores, J. Geophys. Res., 100(D8), 16241–16247, doi:10.1029/95JD01175., , , , and (
- Issue published online: 21 SEP 2012
- Article first published online: 21 SEP 2012
- Manuscript Accepted: 13 MAR 1995
- Manuscript Received: 28 DEC 1994
Measurements of key chemical and physical parameters made along continuous and selected long sections of polar ice cores provide reliable past snow accumulation rates and other environmental records. The prime accumulation indicators include variations found in the stable isotopes, ionic constituents, and acidity concentration levels; and physical changes in the strata and structure. Cross correlations of the time series curves resulting from multiparameter analyses of ice cores from Antarctica (NBY89, SP78, BS68) and Greenland (CR74, D3 81, D3 18C) have been made. The results permit construction of a bipolar chemical stratigraphy chronology of volcanic events that is coherent with the δ 18O and Electrical Conductivity Method data sets and consistent back-in-time with historically recorded volcanic activity. A bihemispheric comparison of high non-sea-salt SO42− peaks shows strong correlation at 1885, 1836, 1816, 1810, 1459, 1346, 1287, 1278, 1259, 1228, and 1168 A.D. at time of snow deposit. The prominent 1259 A.D. volcanic signal appears to be a significant bipolar ice core index horizon.