Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published April 15, 1999 | Published
Journal Article Open

A comparison of observations and model simulations of NO_x/NO_y in the lower stratosphere

Abstract

Extensive airborne measurements of the reactive nitrogen reservoir (NO_(y)) 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 NO_x (= NO + NO_2) to NO_y ratio. The model agreement is substantially improved if newly measured rate coefficients for the OH + NO_2 and OH + HNO_3 reactions are used. When included in 2-D models, the new rate coefficients significantly increase the calculated ozone loss due to NO_x 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.

Additional Information

© 1999 American Geophysical Union. Received November2 4, 1998; revised February 18, 1999; accepted February 22, 1999. Paper number 1999GL900162. We thank the pilots and ground crew of the NASA ER-2 aircraft. This work is supported by the NASA Upper Atmospheric Research Program and the Atmospheric Effects of Aviation Project.

Attached Files

Published - grl12971.pdf

Files

grl12971.pdf
Files (557.7 kB)
Name Size Download all
md5:f5d2a65431d1d70ce8dc96890092641d
557.7 kB Preview Download

Additional details

Created:
August 22, 2023
Modified:
October 26, 2023