Latitudinal wave coupling of the stratosphere and mesosphere during the major stratospheric warming in 2003/2004
1CSAOS, Dept. of Electronic & Electrical Engineering, University of Bath, Bath, UK
2Geophysical Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria
3Institute of Experimental Meteorology, Obninsk, Russia
4Leibniz-Institute of Atmospheric Physics, Kühlungsborn, Germany
5National Institute of Information and Communications Technology, Tokyo, Japan
6Institute of Geology and Geophysics, Beijing, China
7University of Western Ontario, London, Canada
8CoRA/North West Research Associates, Boulder, USA
9ISAS, University of Saskatchewan, Saskatoon, Canada
Abstract. The coupling of the dynamical regimes in the high- and low-latitude stratosphere and mesosphere during the major SSW in the Arctic winter of 2003/2004 has been studied. The UKMO zonal wind data were used to explore the latitudinal coupling in the stratosphere, while the coupling in the mesosphere was investigated by neutral wind measurements from eleven radars situated at high, high-middle and tropical latitudes. It was found that the inverse relationship between the variability of the zonal mean flows at high- and low-latitude stratosphere related to the SSW is produced by global-scale zonally symmetric waves. Their origin and other main features have been investigated in detail. Similar latitudinal dynamical coupling has been found for the mesosphere as well. Indirect evidence for the presence of zonally symmetric waves in the mesosphere has been found.
Pancheva, D., Mukhtarov, P., Mitchell, N. J., Andonov, B., Merzlyakov, E., Singer, W., Murayama, Y., Kawamura, S., Xiong, J., Wan, W., Hocking, W., Fritts, D., Riggin, D., Meek, C., and Manson, A.: Latitudinal wave coupling of the stratosphere and mesosphere during the major stratospheric warming in 2003/2004, Ann. Geophys., 26, 467-483, doi:10.5194/angeo-26-467-2008, 2008.