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Detailed Reference Information |
Frey, H.U., Mende, S.B., Arens, J.F., McCullough, P.R. and Swenson, G.R. (2000). Atmospheric gravity wave signatures in the infrared hydroxyl OH airglow. Geophysical Research Letters 27: doi: 10.1029/1999GL010695. issn: 0094-8276. |
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Atmospheric gravity wave induced airglow fluctuations of the hydroxyl OH Meinel and other bands are routinely observed using CCD imagers operating in the near infrared wavelength region. Farther into the infrared, the intensity of the OH emissions is much greater. Recently, a new IR imaging camera was modified for infrared viewing of the night sky with approximately 1 steradian field of view. The filter had a center wavelength of 1467 nm and a bandwidth of 177 nm to include components of the OH (Δv=2) band. The images show good signal-to-noise ratios of 180 with 10 second exposures. Cross-spectral and wavelet analysis were used to obtain spatial and temporal information about observed airglow fluctuations, and horizontal wavelengths and wave periods as short as 3.7 km and 3 min, respectively, were determined. ¿ 2000 American Geophysical Union |
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Abstract |
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Keywords
Atmospheric Composition and Structure, Airglow and aurora, Atmospheric Composition and Structure, Thermosphere—energy deposition, Meteorology and Atmospheric Dynamics, Waves and tides |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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