Chemistry Faculty Publications
 

Source Publication

Geophysical Research Letters

Document Type

Article

Publication Date

1-1-1999

Volume

26

Issue

8

First Page

1153

Last Page

1156

DOI

10.1029/1999GL900162

Abstract

Extensive airborne measurements of the reactive nitrogen reservoir (NOy) and its component nitric oxide (NO) have been made in the lower stratosphere. Box model simulations that are constrained by observations of radical and long-lived species and which include heterogeneous chemistry systematically underpredict the NOx (= NO + NO2) to NOy ratio. The model agreement is substantially improved if newly measured rate coefficients for the OH + NO2 and OH + HNO3 reactions are used. When included in 2-D models, the new rate coefficients significantly increase the calculated ozone loss due to NOx and modestly change the calculated ozone abundances in the lower stratosphere. Ozone changes associated with the emissions of a fleet of supersonic aircraft are also altered. Copyright 1999 by the American Geophysical Union.

Comments

This article was originally published in Geophysical Research Letters.

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