Planetary waves observed by TIMED/SABER in coupling the stratosphere-mesosphere-lower thermosphere during the winter of 2003/2004: Part 2-Altitude and latitude planetary wave structure
Pancheva, D., Mukhtarov, R., Andonov, B., Mitchell, N. J. and Forbes, J. M., 2009. Planetary waves observed by TIMED/SABER in coupling the stratosphere-mesosphere-lower thermosphere during the winter of 2003/2004: Part 2-Altitude and latitude planetary wave structure. Journal of Atmospheric and Solar-Terrestrial Physics, 71 (1), pp. 75-87.
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Part 2 of the present paper is focused on the planetary wave coupling from the stratosphere to the lower thermosphere (30-120 km) during the Arctic winter of 2003/2004. The planetary waves seen in the TIMED/SABER temperature data in the latitudinal range 50°N–50°S are studied in detail. The altitude and latitude structures of the planetary wave (stationary and travelling) clearly indicate that the stratosphere and mesosphere (30-90 km) are coupled by direct vertical propagation of the planetary waves, while the lower thermosphere (above 90-95km altitude) is only partly connected with the lower levels probably indirectly through in-situ generation of disturbances by the dissipation and breaking of gravity waves filtered by lower atmospheric planetary waves. A peculiar feature of the thermal regime in the lower thermosphere is that it is dominated by zonally symmetric planetary waves.
|Creators||Pancheva, D., Mukhtarov, R., Andonov, B., Mitchell, N. J. and Forbes, J. M.|
|Departments||Faculty of Engineering & Design > Electronic & Electrical Engineering|
|Research Centres||Centre for Space, Atmospheric and Oceanic Science|
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