Physics
Scientific paper
Apr 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991p%26ss...39..617s&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 39, April 1991, p. 617-626.
Physics
18
Airglow, Mesosphere, Oxygen Atoms, Thermosphere, Auroral Zones, Fine Structure, Gravity Waves, Midlatitude Atmosphere, Oscillator Strengths
Scientific paper
A discussion of the laboratory calibration, calibration simulation, and accuracy of a resonance fluorescence instrument for measuring oxygen atoms is presented. The discussion demonstrates that a sensor can be calibrated with good accuracy to obtain in situ measurements of the oxygen density in the mesosphere/lower thermosphere. Oxygen data are reported from six rocket flights. These data represent four midlatitude flights and two auroral flights. There are two night and two day profiles for the midlatitude experiments. The maximum densities found from these sets of data in the 90-100 km regions are between 1.5 x 10 to the 11th/cu cm and 3.5 x 10 to the 11th/cu cm. Agreement with the MSIS-86 model predictions is obtained for altitudes above 120 km for midlatitude flights. The auroral data are less than the model prediction by about a factor of 2. The data show structure that is probably indicative of gravity wave effects of a nominal 5-km vertical wavelength.
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