Stratospheric water vapor measurements during CHEOPS-3. [CHemistry of Ozone in the Polar Stratosphere]

Journal Article · Mon Apr 01 00:00:00 EST 1991 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/91GL00020· OSTI ID:5518501

Ovarlez, J ^[1]

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1. Ecole Polytechnique, 91, Palaiseau (France)

During January 1990, in situ stratospheric water vapor measurements were performed over the Arctic during the CHEOPS experiment at Kiruna. The instrument used is a balloon-borne frost-point hygrometer. Results of two flights are shown: one of the flights showed thermal structure indicative of cooling induced by orographic forcing and favorable to PSC formation. Mixing ratio were the same for the two flights, 4-5 ppmv between 12 and 22 km. However, above 22 km, an increase in mixing ratio to 7.5 ppmv is observed. Because this increase is much higher than at mid-latitudes, the authors examine it in detail.

• OSTI ID: 5518501
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Vol. 18:4; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ARCTIC REGIONS
STRATOSPHERE
ATMOSPHERIC CHEMISTRY
WATER VAPOR
ECOLOGICAL CONCENTRATION
BALLOONS
CLOUDS
HYGROMETRY
LOSSES
MIXING
OZONE LAYER
SAMPLING
AIRSHIPS
CHEMISTRY
EARTH ATMOSPHERE
FLUIDS
GASES
LAYERS
POLAR REGIONS
VAPORS
540110*