Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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STUDIES OF GRAVITY WAVES USING MICHELSON INTERFEROMETER MEASUREMENTS OF OH(3-1)BANDS

  • Won, Young-In (Polar Sciences Laboratory, Korea Ocean R&D Institute) ;
  • Cho, Young-Min (Polar Sciences Laboratory, Korea Ocean R&D Institute) ;
  • Lee, Bang-Yong (Polar Sciences Laboratory, Korea Ocean R&D Institute) ;
  • Kim, J. (Space Division, Korea Aerospace Research Institute)
  • Published : 2001.06.01
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Abstract

As part of a long-term program for polar upper atmospheric studies, temperatures and intensities of the OH(3-1) bands were derived from spectrometric observations of airglow emissions over King Sejong station($62.22^{circ}S,\;301.25^{circ}E$). These measurements were made with a Michelson interferometer to cover wavelength regions between 1000nm and 2000 nm. A spectral analysis was performed to individual nights of data to acquire information on the waves in the upper mesosphere/lower thermosphere. It is assumed that the measured fluctuations in the intensity and temperature of the OH (3-1) airglow were caused by gravity waves propagating through the emission layer. Correlation of intensity and temperature variation revealed oscillations with periods ranging from 2 to 9 hours. We also calculated Krassovsky’s parameter and compared with published values.

Keywords

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