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Record #98845:

Was atmospheric methane invariant for ten thousand years? / P.D. Guthrie.

Title: Was atmospheric methane invariant for ten thousand years? / P.D. Guthrie.
Author(s): Guthrie, P. D.
Date: 1989.
In: Eos : transactions, American Geophysical Union. (1989.), Vol. 70(43) (1989)
Abstract: Methane trapped in air bubbles in ice has been measured by many investigators and results suggest pre-industrial abundance was constant to within ±20% for at least 10 ka. This is 1000 times present photochemical lifetime for methane. Implications for palaeoclimatology and current picture of chemistry controlling atmospheric methane are discussed.
Notes:

Eos : transactions, American Geophysical Union. Vol. 70(43) :1151 (1989).

Abstract for AGU Fall Meeting, December 4-8, 1989.

Keywords: 551.32 -- Glaciology.
551.324 -- Land ice.
551.324.82 -- Bubbles in glaciers and ice.
551.510.41 -- Atmosphere, chemical properties.
E5 -- Glaciology: land ice.
SPRI record no.: 98845

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520 3# ‡aMethane trapped in air bubbles in ice has been measured by many investigators and results suggest pre-industrial abundance was constant to within ±20% for at least 10 ka. This is 1000 times present photochemical lifetime for methane. Implications for palaeoclimatology and current picture of chemistry controlling atmospheric methane are discussed.
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