The 6.5‐day wave in the mesosphere and lower thermosphere: Evidence for baroclinic/barotropic instability
Journal of Geophysical Research Atmospheres2003Vol. 108(D20)
Citations Over TimeTop 14% of 2003 papers
R. S. Lieberman, D. M. Riggin, S. J. Franke, A. H. Manson, C. E. Meek, Takuji Nakamura, Toshitaka Tsuda, R. A. Vincent, Iain M. Reid
Abstract
A westward propagating zonal wave number 1 wave with a period near 6.5 days was a prominent feature in the mesosphere and lower thermosphere (MLT) during the 1994 equinoxes. The meridional structure of the wave in the upper stratosphere and the MLT is consistent with the 5‐day wave structure predicted by normal mode theory. However, the amplitude increases sharply above 80 km, where the wave exhibits a highly organized baroclinic circulation. The eddy fluxes and the background state suggest that the wave is amplified by instability of the mesospheric winds.
Related Papers
- → Effect of baroclinicity on vortex axisymmetrization. Part I: Barotropic basic vortex(2014)14 cited
- → Barotropic and baroclinic tidal currents in the eastern basins of the North Atlantic(1991)50 cited
- → The energetics of internal tides at the Luzon Ridge(2019)4 cited
- → A life-cycle of nonlinear baroclinic waves represented by a simple 3-D spectral model(1995)4 cited
- FEATURES OF VARIATION IN TOTAL,BAROTROPIC AND BAROCLINIC KINETIC ENERGY WITH THE MECHANISM EXPLORED AROUND THE 1998 SCS SUMMER MONSOON ONSET(2003)