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This MJO-like episode possesses a convectively coupled “hybrid structure” that consists of a “quasi equatorial modon”, with an enhanced vortex pair, and a convectively coupled baroclinic Kelvin wave (BKW), with greater phase speed than that of dipolar structure on the intraseasonal time scale.
A Kelvin wave is a wave in the ocean, a large lake or the atmosphere that balances the Earth's Coriolis force against a topographic boundary such as a coastline, ...
Khouider conducted a detailed dynamical analysis for the linear waves in 2006, while developing a systematic model convective parameterization focused on highlighting the dynamic role of the three cloud types, congestus, stratiform, and deep convective cumulus clouds, in terms of exploring the dynamics of large-scale convectively coupled Kelvin ...
The Kelvin waves can also reach a higher amplitude when they enter shallower water. “During El Niño, conditions can be more damaging,” said Gary Griggs, a professor of Earth sciences at UC ...
A tropical wave moved off the western coast of Africa on June 22 and entered the East Pacific eight days later. On July 4, convection increased with the aid of a convectively-coupled kelvin wave, and two days later, a broad area of low pressure formed along the wave axis well south-southwest of Baja California.
During the course of November 29, a westward-moving convectively-coupled Kelvin wave interacted with Durian and provided additional convergence around the typhoon. This precipitated a period of rapid intensification as the cyclone's vorticity abruptly deepened and reached to more than 10 km (6.2 mi) in altitude. [ 5 ]
Passing south of Cape Verde, its interaction with a convectively-coupled Kelvin wave resulted in increased convection and the formation of an area of low pressure. After further organization, the wave acquired sufficient organization to be declared a tropical depression by 12:00 UTC on September 16 while located within the central Atlantic.
In early May, the passage of a convectively-coupled kelvin wave (CCKW) enhanced the eastern Pacific monsoon trough, leading to an area of disturbed weather. This disturbance interacted with a Gulf of Tehuantepec gap wind event, which led to the formation of an ill-defined low-pressure area .