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Gases in ice cores

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https://ir.library.oregonstate.edu/concern/articles/hm50tt478

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Abstract
  • Air trapped in glacial ice offers a means of reconstructing variations in the concentrations of atmospheric gases over time scales ranging from anthropogenic (last 200 yr) to glacial/interglacial (hundreds of thousands of years). In this paper, we review the glaciological processes by which air is trapped in the ice and discuss processes that fractionate gases in ice cores relative to the contemporaneous atmosphere. We then summarize concentration–time records for CO₂ and CH₄ over the last 200 yr. Finally, we summarize concentration–time records for CO₂ and CH₄ during the last two glacial–interglacial cycles, and their relation to records of global climate change.
  • This is the publisher’s final pdf. The published article is copyrighted by the National Academy of Sciences of the United States of America and can be found at: http://www.pnas.org/
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  • Bender, M., Sowers, T., & Brook, E. (1997, August 5). Gases in ice cores [Electronic version]. Proceedings of the National Academy of Sciences of the United States of America, 94(16), 8343-8349.
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  • 94
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  • 16
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  • This research was supported by grants from the New England Regional Center of the National Institute of Global Environmental Change, Department of Energy (Subagreement 901214-HAR), and the Office of Polar Programs, National Science Foundation.
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