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L. S. Brosius, K. M. Walter Anthony, G. Grosse, J. P. Chanton, L. M. Farquharson, P. P. Overduin and H. Meyer Using the deuterium isotope composition of permafrost meltwater to constrain thermokarst lake contributions to atmospheric CH4 during the last deglaciation Journal of Geophysical Research: Biogeosciences (2005–2012) 117

Version of Record online: 25 FEB 2012 | DOI: 10.1029/2011JG001810

Key Points

  • Thermokarst lake deltaD-CH4 reflects permafrost ground ice deltaD-H2O
  • Alaskan lakes emitted less D-depleted CH4 than Siberian lakes
  • Thermokarst lakes contributed significantly to deglacial atmospheric CH4

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