A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is
Journal of the Meteorological Society of Japan
The stability of planetary waves in a two-layer fluid on a channel beta-plane is discussed. The lowest mode of baroclinic waves is shown to be always unstable in the sense of triad resonance instability. The lowest mode of barotropic waves, however, is stable if the zonal wavenumber is smaller than the critical value *c. The transition corresponds to the occurrence of resonating phenomenon between the group velocity of the primary wave and the phase speed of long waves. This phenomenon isdoi:10.2151/jmsj1965.58.3_160 fatcat:j7vu4devojdp5jt3noymbkr764