Rocket measurements of the distribution of water vapor in the stratosphere at high latitudes

Details Rocket measurements of the distribution of water vapor in the stratosphere at high latitudes Rocket measurements of the distribution of water vapor in the stratosphere at high latitudes

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....8612101o&link_type=abstract

Journal of Geophysical Research, vol. 86, Dec. 20, 1981, p. 12101-12107.

Computer Science

Sound

7

Atmospheric Moisture, Polar Regions, Rocket Sounding, Stratosphere, Water Vapor, Aerosols, Atmospheric Attenuation, Atmospheric Sounding, Computerized Simulation, Data Reduction, Infrared Detectors, Photometers, Tables (Data), Tropopause

Scientific paper

The altitude distribution of stratospheric water vapor was measured by a rocket-borne infrared photometer on two separate occasions: from Cape Perry, Canada (latitude 70.2 deg N, longitude 124.6 deg W) on December 6, 1974 and from Kiruna, Sweden (latitude 67.9 deg N, longitude 21.1 deg E) on March 13, 1975 at sunset. The infrared photometer measures long path atmospheric absorption of the solar beam in the 2.7 micron spectral region. The measurements indicate that the water vapor mixing ratio increases from approximately 1.5 ppmv at the tropopause to approximately 8 ppmv at 50 km, then decreases at higher altitudes. This is consistent with current theories of stratospheric water vapor distribution as well as with the results of other experimental investigations. Methane oxidation at higher altitudes (Wofsy et al., 1972) and a sink near the tropopause (Stanford, 1973) are cited as possible explanations for the observations. A computer simulation of the laboratory measurements indicates that the wings of the water vapor lines in the 2.7 micron region are super-Lorentzian.

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