Observations of the E-region horizontal winds in the auroral zone and at mid-latitudes by a ground-based interferometer

Details Observations of the E-region horizontal winds in the auroral zone and at mid-latitudes by a ground-based interferometer Observations of the E-region horizontal winds in the auroral zone and at mid-latitudes by a ground-based interferometer

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995angeo..13.1172f&link_type=abstract

Annales Geophysicae, vol. 13, Issue 11, pp.1172-1186

Physics

2

Scientific paper

The MICADO instrument, consisting of a Michelson interferometer, has observed winds and temperatures during three winter campaigns in the auroral zone, and during 2 years at the Observatoire de Haute-Provence. The instrument observed the O(1S) oxygen emission line. Emission from this line originates from both the E- and F-regions. A method to separate the contribution from these two regions is presented for cases when the thermospheric component is comparable to that for the mesosphere. For the auroral latitudes, a mean model of the meridional and zonal neutral wind components as a function of magnetic activity and time is presented and compared to predictions from recent empirical models. For the mid-latitudes, several properties of the semi-diurnal tides are shown and compared to radar observations and predictions from recent theoretical models.

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