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Conference Proceeding

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Annals of Glaciology

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Abstract/ Summary

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 AD 1301-1995. We use additional data from other cores to investigate systematic spatial variability in the ratios. Only for the Kuwae eruption (Law Dome ice date AD 1459.5) was the H2SO4 flux larger than that deposited by Tambora (Law Dome ice date AD 1816.7).

Citation/Publisher Attribution

Palmer, AS, Morgan, VI, Curran, AJ, Van Ommen, TD, and Mayewski, PA, 2002, Antarctic Volcanic Flux Ratios from Law Dome Ice Cores: Annals of Glaciology, Vol 35, v. 35, p. 329-332. Available on publisher's site at:

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© Copyright 2002 by the International Glaciological Society




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In Copyright - Educational Use Permitted.