Unexpected high levels of NO observed at South Pole

Citation
D. Davis et al., Unexpected high levels of NO observed at South Pole, GEOPHYS R L, 28(19), 2001, pp. 3625-3628
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Earth Sciences
Journal title
GEOPHYSICAL RESEARCH LETTERS
ISSN journal
0094-8276 → ACNP
Volume
28
Issue
19
Year of publication
2001
Pages
3625 - 3628
Database
ISI
SICI code
0094-8276(20011001)28:19<3625:UHLONO>2.0.ZU;2-D
Abstract
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 magnitud e higher (i.e., median, 225 pptv) than measured at other polar sites. The a vailable evidence suggests that these elevated levels are the result of pho to denitrification of the snowpack, in conjunction with a very thin atmosph eric mixing depth, Important chemical consequences included finding the atm ospheric oxidizing power at SP to be an order of magnitude higher than expe cted.