In situ observations of midlatitude stratospheric ClO and BrO

Details In situ observations of midlatitude stratospheric ClO and BrO In situ observations of midlatitude stratospheric ClO and BrO

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13.1391b&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 13, Dec. 1986, p. 1391-1394.

Computer Science

Sound

33

Bromine Compounds, Chlorine Oxides, Midlatitude Atmosphere, Ozone, Stratosphere, Antarctic Regions, Balloon Sounding, Catalytic Activity, Depletion, Holes, Two Dimensional Models

Scientific paper

A balloon-borne experiment to measure midlatitude stratospheric BrO and ClO concentrations by NO chemical conversion/atomic resonance fluorescence was flown from Palestine, Texas, on May 20 1986. In this first study of BrO, no signal attributable to BrO was detected, and upper limits (2 sigma uncertainty) between 35 and 24 km altitude give BrO mixing ratios less than 15 pptv. Current models predict mixing ratios that are 1.7 times larger. Measurements of ClO were obtained at less than 0.2-km altitude resolution from 41 to 22 km. The smoothly varying altitude profile lies within the range of two-dimensional model calculations.

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