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Atmospheric Sciences
Unexpected high levels of NO observed at South Pole
Article first published online: 7 DEC 2012
DOI: 10.1029/2000GL012584
Copyright 2001 by the American Geophysical Union.
Additional Information
How to Cite
(2001), Unexpected high levels of NO observed at South Pole. Geophysical Research Letters, 28: 3625–3628. doi: 10.1029/2000GL012584
Publication History
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 30 JUN 2001
- Manuscript Received: 8 NOV 2000
- Abstract
- References
- Cited By
Reported here are the first Austral summer measurements of NO at South Pole (SP). They are unique in that the levels are one to two orders of magnitude higher (i.e., median, 225 pptv) than measured at other polar sites. The available evidence suggests that these elevated levels are the result of photodenitrification of the snowpack, in conjunction with a very thin atmospheric mixing depth. Important chemical consequences included finding the atmospheric oxidizing power at SP to be an order of magnitude higher than expected.