【摘 要】
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Volcanic sulfur dioxide is oxidized in the atmosphere to sulfate aerosols.Volcanic aerosols present in the stratosphere, by altering the atmospheric albedo and energy balance, can impact the global cl
【机 构】
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Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD,USA
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Volcanic sulfur dioxide is oxidized in the atmosphere to sulfate aerosols.Volcanic aerosols present in the stratosphere, by altering the atmospheric albedo and energy balance, can impact the global climate significantly.Some of the most valuable volcanic records are based on time series of sulfate in polar ice cores, and are used to determine the role of volcanism in climate change (i.e., the natural climate variability).The time coverage of such records can be as long as tens of thousands of years.However, many of the sulfate signals in these records may be from relatively small tropospheric eruptions with no significant climatic impact and therefore should be excluded from consideration when investigating the volcano-climate connection.
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