Stratospheric water vapor content evolution during EASOE

Journal Article · Wed Jun 22 04:00:00 EDT 1994 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/93GL02438· OSTI ID:6595749

Ovarlez, J; Overlez, H ^[1]

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1. Laboratoire de Meteorologie Dynamique du CNRS, Palaiseau (France)

This paper presents results of stratospheric water vapor measurements made from balloon borne instruments in the arctic winter as a part of EASOE. A frost-point hygrometer allowed measurement of the frost point and air temperature, which allowed the detection of conditions consistent with the formation of polar stratospheric clouds. Such clouds were observed on one occasion when this diagnostic sensed conditions conducive to the formation of such clouds. Outside the polar vortex the average water vapor density was fairly constant, between 4 to 5 ppmv between 16 and 25 km. More variation was observed both above and below these altitudes, and inside the vortex, vertical motion was also observed.

• OSTI ID: 6595749
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 21:13; ISSN GPRLAJ; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ALTITUDE
AMBIENT TEMPERATURE
CLOUDS
EARTH ATMOSPHERE
ECOLOGICAL CONCENTRATION
FLUIDS
FROST
GASES
ICE
STRATOSPHERE
VAPORS
WATER VAPOR