Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1777667 | Journal of Atmospheric and Solar-Terrestrial Physics | 2009 | 13 Pages |
Abstract
We compare meteor radar measurements of the MLT region winds at Santa Maria, Brazil (29.7°S, 53.8°W) with the Horizontal Neutral Wind Model (HWM-93) and the Global Scale Wave Model (GSWM-00). The observed annual variation of the prevailing zonal wind disagrees in some respects with the HWM-93 model. Also, the zonal diurnal tide amplitude shows an annual variation, whereas that of the GSWM-00 is semiannual, and its vertical wavelength is smaller than that suggested by the model. The observed semidiurnal tide shows seasonal and inter-annual variations and the phase is evanescent during almost the whole year.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
V.F. Andrioli, B.R. Clemesha, P.P. Batista, N.J. Schuch,