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Antarctic volcanic flux ratios from Law Dome ice cores


Palmer, AS and Morgan, VI and Curran, MAJ and van Ommen, TD and Mayewski, PA, Antarctic volcanic flux ratios from Law Dome ice cores, Annals of Glaciology, 35 pp. 329-332. ISSN 0260-3055 (2002) [Refereed Article]

DOI: doi:10.3189/172756402781816771


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).

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Physical geography and environmental geoscience
Research Field:Glaciology
Objective Division:Environmental Management
Objective Group:Other environmental management
Objective Field:Other environmental management not elsewhere classified
UTAS Author:Palmer, AS (Dr Anne Palmer)
ID Code:26111
Year Published:2002
Web of Science® Times Cited:14
Deposited By:IASOS
Deposited On:2002-08-01
Last Modified:2011-08-02

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