Development of Optical Mesosphere Thermosphere Imagers (OMTI)

  • Shiokawa K.
    Solar-Terrestrial Environment Laboratory, Nagoya University
  • Katoh Y.
    Solar-Terrestrial Environment Laboratory, Nagoya University
  • Satoh M.
    Solar-Terrestrial Environment Laboratory, Nagoya University
  • Ejiri M. K.
    Solar-Terrestrial Environment Laboratory, Nagoya University
  • Ogawa T.
    Solar-Terrestrial Environment Laboratory, Nagoya University
  • Nakamura T.
    Radio Atmospheric Science Center, Kyoto University
  • Tsuda T.
    Radio Atmospheric Science Center, Kyoto University
  • Wiens R. H.
    Center for Research in Earth and Space Science, York University

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Abstract

The Optical Mesosphere Thermosphere Imagers (OMTI) have been developed to investigate the dynamics of the upper atmosphere through nocturnal airglowemissions. TheOMTIconsist of an imaging Fabry-Perot interferometer, three all-sky cooled-CCD cameras, three tilting photometers, and a Spectral Airglow Temperature Imager (SATI) with two container houses to install them in. These instruments measure wind, temperature and 2-dimensional airglow patterns in the upper atmosphere at multi-wavelengths of OI (557.7 nm and 630.0 nm), OH (6-2) bands, O2 (0, 1) bands, and Na (589.3 nm), simultaneously. Examples of the data are shown for the cameras, the photometers, and the SATI based on the airglow observation at a mid-latitude station in Japan. Good correlation of the photometer and SATI observations is obtained. A comparison is shown for small- and large-scale wave structures in airglow images at four wavelengths around the mesopause region using four cooled-CCD cameras. We found an event during which large-scale bands, small-scale row-like structures, and large-scale front passage occur simultaneously.

Journal

  • Earth, Planets and Space

    Earth, Planets and Space 51 (7-8), 887-896, 1999

    Society of Geomagnetism and Earth, Planetary and Space Sciences, The Seismological Society of Japan, The Volcanological Society of Japan , The Geodetic Society of Japan , The Japanese Society for Planetary Sciences

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