Oceanic Kelvin waves and tropical Atlantic intraseasonal variability: 1. Kelvin wave characterization

Intraseasonal Kelvin wave in Makassar Strait

[1] Time series observations during 2004–2006 reveal the presence of 60–90 days intraseasonal events that impact the transport and mixing environment within Makassar Strait. The observed velocity and temperature fluctuations within the pycnocline reveal the presence of Kelvin waves including vertical energy propagation, energy equipartition, and nondispersive relationship. Two current meters at...

Intraseasonal Kelvin Waves in Makassar Strait 1 2 3

Influence of Oceanic Intraseasonal Kelvin Waves on Eastern Pacific Hurricane Activity

Recent studies have highlighted the role of subsurface ocean dynamics in modulating eastern Pacific (EPac) hurricane activity on interannual time scales. In particular, the well-known El Niño–Southern Oscillation (ENSO) recharge–discharge mechanism has been suggested to provide a good understanding of the year-to-year variability of hurricane activity in this region. This paper investigates the...

Nonlinear Wave Packets of Equatorial Kelvin Waves

The weakly nonlinear dynamics of packets of equatorial Kelvin waves is studied using singular perturbation theory applied to the shallow water wave equations. Within the limits of the perturbation theory, which is formally restricted to weak mean shear and weak nonlinearity, we derive a Nonlinear Schroedinger equation to describe the envelope of the wave packet. We find that nonlinearity has a ...

Excitation of equatorial Kelvin and Yanai waves by tropical cyclones

Introduction Conclusions References