Measurements of the E region neutral wind field

  • Cogger L
  • Murphree J
  • Tepley C
 et al. 
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The neutral E-region wind field was measured at Calgary, Canada (51°N, 114°W) during 75 nights in 1982. Observations of the Doppler shift of the 5577-Å emission line of atomic oxygen using a Fabry-Perot interferometer were converted to horizontal wind vectors. From the analysis of the data, four categories of wind characteristics were identified. In order of increasing magnetic activity these categories are (a) wind field mostly variable in space and time, (b) predominantly equatorward flow throughout the night, (c) predominantly poleward flow throughout the night and (d) north-westward flow before midnight and southward after midnight. The wind magnitude was also variable and on some disturbed days exceeded 200 m s-1. © 1985.

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  • L. L. Cogger

  • J. S. Murphree

  • C. A. Tepley

  • J. W. Meriwether

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