Journal of Geophysical Research
American Geophysical Union
Rights and Access Note
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s).
A record of volcanic activity over the period A.D. 1301–1995 has been extracted from three Law Dome ice cores (East Antarctica). The record dating is unambiguous at the annual level from A.D. 1807 to 1995 and has an uncertainty of ±1 year at A.D. 1301. Signals from 20 eruptions are preserved in the record, including those of two unknown eruptions with acid deposition beginning in A.D. 1810.8 and A.D. 1685.8. The beginning of the ice core signal from the A.D. 1815 Tambora eruption is observed in the austral summer of A.D. 1816/1817. The mean observed stratospheric transport and deposition time to Law Dome from the eruption site is 1.5 years (σ = 0.6 years) from 11 well-dated eruptions. The largest eruption observed in the Law Dome record has its maximum in A.D. 1460 with volcanic sulfate deposition beginning in the austral winter of A.D. 1459. This event is also observed in other ice core records and is attributed to the volcano Kuwae, with an eruption date in the range A.D. 1455.9–1459.9 if all sources of error are considered. This is at least three years later than the date previously ascribed by dendrochronological and historical studies.
Palmer, Anne S.; van Ommen, Tas D.; Curran, Mark A. J.; Morgan, Vin; Souney, Joe M.; and Mayewski, Paul Andrew, "High-precision Dating of Volcanic Events (A.D. 1301–1995) Using Ice Cores from Law Dome, Antarctica" (2001). Earth Science Faculty Scholarship. 247.
Palmer, A. S., T. D. van Ommen, M. A. J. Curran, V. Morgan, J. M. Souney, and P. A. Mayewski (2001), High-precision dating of volcanic events (A.D. 1301–1995) using ice cores from Law Dome, Antarctica, Journal of Geophysical Research, 106(D22), 28,089–28,095, doi:10.1029/2001JD000330.
© Copyright 1994 by the American Geophysical Union
publisher's version of the published document