Computer Science – Sound
Scientific paper
Sep 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jgr....82.3518b&link_type=abstract
Journal of Geophysical Research, vol. 82, Sept. 1, 1977, p. 3518-3528.
Computer Science
Sound
2
Auroral Spectroscopy, Emission Spectra, Infrared Spectra, Rocket Sounding, Carbon Dioxide, Nitric Oxide, Vibrational Spectra
Scientific paper
A Paiute-Tomahawk sounding rocket containing a 1.5- to 5.3-micron cryogenically cooled spectrometer was flown into a very bright (IBC III+) auroral breakup from Poker Flat, Alaska. The main emission features at 2.8, 4.3, and 5.3 microns were all found to be enhanced owing to the large energy input to the atmosphere associated with the aurora. The most prominent enhancement occurred in the 4.3-micron feature which is identified as emission from the CO2 (nu3) band. It is concluded that the excitation process involves vibrational excitation of nitrogen followed by collisional radiance v-v transfer to CO2, which then radiates at 4.3 microns. The 5.3- and 2.8-micron features are attributed to radiation from fundamental and first-overtone NO bands.
Baker David John
Baker Donald K.
Stair T. Jr. A.
Ulwick James C.
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