Balloon borne in-situ detection of OH in the stratosphere from 37 to 23 km
Abstract
The OH number density in the stratosphere has been measured over the altitude interval of 37 to 23 km at midday via a balloon-borne gondola launched from Palestine, Texas on July 6, 1988. OH radicals are detected with a laser induced fluorescence instrument employing a 17 kHz repetition rate copper vapor laser pumped dye laser optically coupled to an enclosed flow, in-situ sampling chamber. OH abundances ranged from 88±31 pptv (1.1 ± 0.4 × 10^7 molec cm^(−3)) in the 36 to 35 km interval to 0.9 ± 0.8 pptv (8.7 ± 7.7 × 10^5 molec cm^(−3)) in the 24 to 23 km interval. The stated uncertainty (±1σ) includes that from both measurement precision and accuracy. Simultaneous detection of ozone and water vapor densities was carried out with separate on-board instruments.
Additional Information
© 1989 American Geophysical Union. Received: September 19, 1989; revised: October 25, 1989; accepted: October 26, 1989. Paper number 89GL03359. We are indebted to J. Demusz, N. Allen, M. Mueller, N. Hazen, B. Heroux, E. Weinstock and the Atmospheric Research Group staff. The NSBF staff in Palestine, TX provided excellent support. Funds for this research were provided by NASA contract NASW 3960.Attached Files
Published - grl4570.pdf
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- 49639
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- CaltechAUTHORS:20140912-084956282
- NASA
- NASW-3960
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2014-09-12Created from EPrint's datestamp field
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2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences