Seasonal Variations of Wind and Temperature at the Mesopause

Details Seasonal Variations of Wind and Temperature at the Mesopause Seasonal Variations of Wind and Temperature at the Mesopause

Jun 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997jass...14..109c&link_type=abstract

Journal of Astronomy and Space Science, vol. 14, no. 1, p. 109-116.

Astronomy and Astrophysics

Astronomy

Scientific paper

The Mesopause (85km) is the boundary between the Mesosphere and the Thermosphere and is a very interesting region because there ate active fluid dynamic motions arid airglow phenomena due to various chemical reactions. But there have been not many studies due to the difficulties of insitu measurement. Bowever in this study we have obtained the Doppler temperatures and winds through the observing Hydroxyl(OH) emission at 843nm using a ground-based Fabry-Perot interferometer. Due to the 2 years of long term observation, we can confirm the seasonal Mesopause temperature variation, which is the opposite trend against the temperature at the ground level, and reveal annual and biannual variations for meridional arid zonal wind respectively. These seasonal variations might be the result of the inter-hemispheric circulation.

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