Unexpected high levels of NO observed at South Pole

被引：156

作者：

Davis, D ^{[1
]}

Nowak, JB

Chen, G

Buhr, M

Arimoto, R

Hogan, A

Eisele, F

Mauldin, L

Tanner, D

Shetter, R

Lefer, B

McMurry, P

机构：

[1] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA

[2] New Mexico State Univ, Carlsbad, NM USA

[3] Geochem Sci Div, Hanover, NH USA

[4] Natl Ctr Atmospher Res, Boulder, CO 80307 USA

[5] Univ Minnesota, Minneapolis, MN USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2001年 / 28卷 / 19期

关键词：

D O I：

10.1029/2000GL012584

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

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 photo denitrification 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.

引用

页码：3625 / 3628

页数：4

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