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Periodicities in energy dissipation rates in the auroral mesosphere/lower thermosphere
(Journal article; Peer reviewed; Tidsskriftartikkel, 2003)
It is possible for medium-frequency (MF) radar systems to estimate kinetic energy dissipation rates by measuring signal fading times. Here, we present approximately 5 years of such results from Tromsø (69° N, 19° E) and in particular, investigate the periodicities present at different altitudes in the regime 80 to 100 km. We detect the known annual variation in the mesosphere and the semiannual ...