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The atmospheric CH4 increase since the Last Glacial Maximum
(1). Source estimates
Article first published online: 5 NOV 2002
Volume 45, Issue 3, pages 228–241, July 1993
How to Cite
CHAPPELLAZ, J. A., FUNG, I. Y. and THOMPSON, A. M. (1993), The atmospheric CH4 increase since the Last Glacial Maximum. Tellus B, 45: 228–241. doi: 10.1034/j.1600-0889.1993.t01-2-00002.x
- Issue published online: 5 NOV 2002
- Article first published online: 5 NOV 2002
- (Manuscript received 27 March 1992; in final form 9 November 1992)
- Cited By
An estimate of the distribution of wetland area and associated CH4 emission is presented for the Last Glacial Maximum (LGM, 18 kyr BP, kiloyear Before Present) and the Pre-Industrial Holocene (PIH, 9000–200 years BP). The wetland source, combined with estimates of the other biogenic sources and sink, yields total source strengths of 120 and 180 Tg CH4/yr for LGM and PIH respectively. These source strengths are shown to be consistent with source estimates inferred from a photochemical model, and point to changes in wetland CH4 source as a major factor driving the atmospheric CH4 increase from LGM to PIH.