Optical observations of thermospheric dynamics at Arecibo

Details Optical observations of thermospheric dynamics at Arecibo Optical observations of thermospheric dynamics at Arecibo

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.5532b&link_type=abstract

Journal of Geophysical Research, vol. 86, July 1, 1981, p. 5532-5540.

Physics

87

Atmospheric Circulation, Thermosphere, Wind Velocity Measurement, Winds Aloft, Airglow, Annual Variations, Fabry-Perot Interferometers, Night Sky, Wind Direction

Scientific paper

A description is given of wind and temperature data obtained with a 15-cm Fabry-Perot interferometer. The observations were made between February and August 1980 and confirm the details of the conceptual model of Herrero and Meriwether (1980). Attention is given to the method used to analyze the neutral wind field, the zonal winds, the meridional wind, the horizontal wind gradient, the vertical wind velocity, the full wind field, and the neutral temperature. The most regular feature of the neutral wind at Arecibo is the zonal component, which has a peak velocity in the eastward direction near sunset, and decreases in velocity as the night progresses. Both the wind and temperature measurements reported provide ample confirmation of the importance of the equatorial midnight pressure bulge in modifying the dynamic behavior of the nighttime thermosphere at Arecibo.

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