Relating inferred HNO3 flux values to the denitrification of the 1999-2000 Arctic vortex -: art. no. 1816

被引：8
|
作者：
Northway, MJ [1 ]
Popp, PJ
Gao, RS
Fahey, DW
Toon, GC
Bui, TP
机构：
[1] NOAA, Aeron Lab, Boulder, CO 80305 USA
[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[3] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
来源：
GEOPHYSICAL RESEARCH LETTERS | 2002年 / 29卷 / 16期
关键词：
D O I：
10.1029/2002GL015000
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
Extensive populations of large HNO3-containing particles were observed in situ in the 1999-2000 Arctic winter vortex. Assuming nitric acid trihydrate (NAT) composition, the associated values of instantaneous gravitational flux of HNO3 are between 1.10(8) and 5.10(10) molec cm(-3) km day(-1) and are the largest ever derived from in situ measurements. The relationship between these observed populations and observed denitrification in the 1999-2000 Arctic vortex is developed using constraints of NAT formation and sedimentation. This analysis of the 1999-2000 winter provides a useful guide to interpreting future observations of polar stratospheric clouds and denitrification in the polar regions.
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页数：4
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