Computer Science – Sound
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991georl..18.1011h&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 18, June 1991, p. 1011-1014. NSF-supported research.
Computer Science
Sound
8
Atmospheric Moisture, Balloon Sounding, Ozone Depletion, Polar Regions, Stratosphere, Hygrometers, Sweden, Temperature Profiles, Water Vapor
Scientific paper
Vertical profiles of stratospheric water vapor and ozone measured in Antarctica indicated that major dehydration had occurred on a continental scale over the winter stratospheric cloud formation period, leaving only 2 to 3 ppmv water vapor between 11 and 19 km. Measurements before and after movement of the boundary of the polar vortex across McMurdo Station detected increases in water vapor and ozone in the 17 to 20 km region. Stratospheric water vapor measurements in Kiruna, Sweden, yielded values of 4 to 5 ppmv, indicating the absence of the gross stratospheric dehydration effects obvious in the Antarctic, and they failed to reveal significant structure, except in a region of very cold temperatures and nacreous clouds, which may have been an instrumental effect. No substantial increase in water vapor mixing ratio above 20 km, as previously reported for the Arctic, was observed to altitudes of 32 km.
Deshler Terry
Hofmann David J.
Oltmans Samuel J.
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