OBSERVATIONS OF THE LOSS OF STRATOSPHERIC NO2 FOLLOWING VOLCANIC-ERUPTIONS

被引：21

作者：

COFFEY, MT

MANKIN, WG

机构：

[1] National Center for Atmospheric Research, Boulder, Colorado

来源：

GEOPHYSICAL RESEARCH LETTERS | 1993年 / 20卷 / 24期

关键词：

D O I：

10.1029/93GL03151

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Observations of stratospheric column amounts of nitrogen dioxide (NO2), nitric oxide (NO) and nitric acid (HNO3) have been made following major eruptions of the E1 Chichon and Mt. Pinatubo volcanoes. Midlatitude abundances of NO2 and NO were reduced by as much as 70% in the months following the appearance of the volcanic aerosols as compared to volcanically quite periods. There are heterogeneous reactions which could occur on the volcanic aerosols to convert NO2 into HNO3 but no commensurate increase in HNO3 column amounts was observed at the times of NO2 decrease.

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页码：2873 / 2876

页数：4

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