Document Type
Conference Proceeding
Rights and Access Note
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Publication Date
1-1-2005
Abstract/ Summary
Ice-core chemistry data from Victoria Lower Glacier, Antarctica, suggest, at least for the last 50 years, a direct influence of solar activity variations on the McMurdo Dry Valleys (MDV) climate system via controls on air-mass input from two competing environments: the East Antarctic ice sheet and the Ross Sea. During periods of increased solar activity, when total solar irradiance is relatively high, the MDV climate system appears to be dominated by air masses originating from the Ross Sea, leading to higher aerosol deposition. During reduced solar activity, the Antarctic interior seems to be the dominant air-mass source, leading to lower aerosol concentration in the ice-core record. We propose that the sensitivity of the MDV to variations in solar irradiance is caused by strong albedo differences between the ice-free MDV and the ice sheet.
Citation/Publisher Attribution
Bertler, NAN, Mayewski, PA, Sneed, SB, Naish, TR, Morgenstern, U, and Barrett, PJ, 2005, Solar Forcing Recorded by Aerosol Concentrations in Coastal Antarctic Glacier Ice, McMurdo Dry Valleys: Annals of Glaciology, Vol 41 2005, v. 41, p. 52-56. Available on publisher's site at:
http://www.ingentaconnect.com/content/igsoc/agl/2005/00000041/00000001/art00009
DOI
10.3189/172756405781813203
Version
publisher's version of the published document
Citation Information
Nancy A.N. Bertler, Paul Andrew Mayewski, Sharon B. Sneed, Tim R. Naish, et al.. "Solar Forcing Recorded by Aerosol Concentrations in Coastal Antarctic Glacier Ice, McMurdo Dry Valleys"
Annals of Glaciology Vol. 41 (2005) p. 52 - 56
Available at: http://works.bepress.com/paul_mayewski/6/
