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Stratospheric HBr concentration profile obtained from far-infrared emission spectroscopy

Nolt, I. G., Ade, Peter A. R., Alboni, F., Carli, B., Carlotti, M., Cortesi, U., Epifani, M., Griffin, Matthew Joseph, Hamilton, P. A., Lee, C., Lepri, G., Mencaraglia, F., Murray, A. G., Park, J. H., Park, K., Raspollini, P., Ridolfi, M. and Vanek, M. D. 1997. Stratospheric HBr concentration profile obtained from far-infrared emission spectroscopy. Geophysical Research Letters 24 (3) , pp. 281-284. 10.1029/97GL00034

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Abstract

Hydrogen bromide (HBr) is the principal bromine sink species for the ozone loss chemistry induced by bromine‐containing gases in the stratosphere. We report a 1994 balloon‐based measurement of the daytime stratospheric HBr profile between 20 and 36.5 km altitude. The average concentration result of 1.31±0.39 parts per trillion in volume (pptv) and an analysis for the concentration versus altitude profile are consistent with previously reported measurements. These results strengthen the evidence for a significantly higher HBr concentration than that predicted by current photochemical models which, on the basis of recent kinetics results, do not include significant HBr production by the reaction branch, BrO + HO2 → HBr + O3.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Additional Information: Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/0094-8276/ (accessed 20/02/2014).
Publisher: American Geophysical Union
ISSN: 0094-8276
Date of First Compliant Deposit: 30 March 2016
Last Modified: 04 Jun 2017 02:12
URI: http://orca.cf.ac.uk/id/eprint/10937

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