Staffelbach, Thomas; Neftel, Albrecht; Stauffer, Bernhard; Jacob, Daniel (1991). A record of the atmospheric methane sink from formaldehyde in polar ice cores. Nature, 349(6310), pp. 603-605. Nature Publishing Group 10.1038/349603a0
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Measurements of methane from ice cores show that the atmospheric concentration of methane has more than doubled since industrialization, and was only half of the pre-industrial value during the last ice age (1–9). Natural sources of atmospheric methane are mainly biogenic, with the main sink for methane being its reaction with OH radicals. This reaction initiates a chain of reactions involving other trace gases and radicals, one of which is formaldehyde. In the remote troposphere, oxidation of methane followed by other reactions is the main source for formaldehyde. By reconstructing records of atmospheric methane and formaldehyde from ice cores, we can examine changes in sources of methane and in the oxidation capacity of the atmosphere.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Physics Institute 08 Faculty of Science > Physics Institute > Climate and Environmental Physics |
UniBE Contributor: |
Stauffer, Bernhard |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0028-0836 |
Publisher: |
Nature Publishing Group |
Language: |
English |
Submitter: |
BORIS Import 2 |
Date Deposited: |
18 Aug 2021 09:29 |
Last Modified: |
05 Dec 2022 15:52 |
Publisher DOI: |
10.1038/349603a0 |
BORIS DOI: |
10.48350/158244 |
URI: |
https://boris.unibe.ch/id/eprint/158244 |
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