Lower Thermosphere Coupling Study - Comparison of observations with predictions of the University College London-Sheffield thermosphere-ionosphere model

Details Lower Thermosphere Coupling Study - Comparison of observations with predictions of the University College London-Sheffield thermosphere-ionosphere model Lower Thermosphere Coupling Study - Comparison of observations with predictions of the University College London-Sheffield thermosphere-ionosphere model

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....96.1181f&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Feb. 1, 1991, p. 1181-1202. Research supported by SERC.

Physics

16

Atmospheric Models, Earth Ionosphere, Eiscat Radar System (Europe), Incoherent Scatter Radar, Thermosphere, Atmospheric Temperature, Solar Heating

Scientific paper

Measurements of ionospheric parameters (including Ne, Te, Ti, and plasma velocity on temperature, meridional wind, and zonal wind) in the E and the F regions, were collected on September 21-25, 1987 (during the first Lower Thermosphere Coupling Study, LTCS) from four sites covering a wide range in latitude, in order to determine the E region neutral wind and infer the neutral temperature in the height range 100-150. The results are compared with predictions from the University College London-Sheffield thermosphere-ionosphere model (UCL-Sheffield model). It is shown that most of the LTCS tidal observations could be interpreted by the UCL-Sheffield model readily, provided that the tidal forcing from (2,2) and (2,4) modes was included in the model, using forcing amplitudes in the region of 400 km and 97 km. These magnitudes are larger than those predicted by the linear global models.

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