Measurements of the E region neutral wind field

Details Measurements of the E region neutral wind field Measurements of the E region neutral wind field

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985p%26ss...33..373c&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 33, April 1985, p. 373-379. NSF-NASA-supported research.

Physics

21

Doppler Effect, E Region, Fabry-Perot Interferometers, Magnetic Effects, Wind Measurement, Auroras, D Region, Electrodynamics, F Region, Gravity Waves, Nightglow, Tides

Scientific paper

The neutral E-region wind field was measured at Calgary, Canada (51 N, 114 N) during 75 nights in 1982. Observations of the Doppler shift of the 5577-A 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: (1) wind field mostly variable in space and time; (2) predominantly equatorward flow throughout the night, (3) predominantly poleward flow throughout the night and (4) north-westward flow before midnight and southward after midnight. The wind magnitude was also variable and on some disturbed days exceeded 200 m/s.

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