Authors: Palmer, Anne S.; Morgan, Vin I.; Curran, Mark A.J.; Van Ommen, Tas D.; Mayewski, Paul A.

Source: Annals of Glaciology, Volume 35, Number 1, 1 January 2002 , pp. 329-332(4)

Publisher: International Glaciological Society

Abstract:

Explosive volcanic eruptions can inject large quantities of sulphur dioxide into the stratosphere.The aerosols that result from oxidation of the sulphur dioxide can produce significant cooling of the troposphere by reflecting or absorbing solar radiation. It is possible to obtain an estimate of the relative stratospheric sulphur aerosol concentration produced by different volcanoes by comparing sulphuric acid fluxes determined by analysis of polar ice cores. Here, we use a non-sea-salt sulphate time series derived from three well-dated Law Dome ice cores to investigate sulphuric acid flux ratios for major eruptions over the period AD1301-1995.Weuse additional data from other cores to investigate systematic spatial variability in the ratios. Only for the Kuwae eruption (Law Dome ice date AD1459.5) was the H₂SO₄ flux larger than that deposited by Tambora (Law Dome ice date AD1816.7).

Document Type: Research article

DOI: http://dx.doi.org/10.3189/172756402781816771

Publication date: 2002-01-01

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• The Annals of Glaciology is a peer-reviewed, thematic journal published 2 to 4 times a year by the International Glaciological Society (IGS). Publication frequency is determined and volume/issue numbers assigned by the IGS Council on a year-to-year basis and with a lead time of 3 to 4 years. The Annals of Glaciology is included in the ISI Science Citation Index from volume 50, number 50 onwards.

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