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Second Harmonic Resonance for Equatorial Waves
Second Harmonic Resonance Equatorial Waves
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2009/2/5
Simple, exact analytical conditions for second harmonic resonance between equatorial waves are derived. Such resonance can occur only between two Rossby waves or two westward travelling gravity waves....
It is shown that resonant coupling between ultra long equatorial Rossby waves and packets of either short Rossby or short westward-traveling gravity waves is possible. Simple analytic formulas give th...
Inertial Resonance Induced by an Oceanic Jet
Inertial Resonance geostrophic jet Oceanic Jet
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2008/12/19
The dynamics of the mixed layer in the presence of an embedded geostrophic jet has been investigated using a simple 1½-layer model and a two-dimensional primitive equation model. The jet vortic...
Resonance of Fofonoff’s Mode in a Rotated Basin
Fofonoff’s Mode Rotated Basin vorticity equation
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2008/12/18
Fofonoff solutions to the inviscid barotropic potential vorticity equation are found for the steady, free flow in a basin rotated at an arbitrary angle to a latitude circle. These solutions am used to...
A Topographic–Rossby Mode Resonance over the Iceland–Faeroe Ridge
Iceland–Faeroe Ridge Topographic–Rossby Mode
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2008/12/11
An array of current meter moorings along 12°W on the southern side of the lceland-Faeroe Ridge reveals a narrowband barotropic oscillation with period 1.8 days in spectra of velocity. The signal is co...
Momentum Balance in Zonal Flows and Resonance of Baroclinic Rossby Waves
Momentum Balance Zonal Flows Baroclinic Rossby Waves
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2008/7/21
Wind-driven flow in a baroclinic quasigeostrophic channel with simple bottom topography is studied in a model with reduced physics and degrees of freedom as an analogy to the Antarctic Circumpolar Cur...
Long Rossby Wave Basin-Crossing Time and the Resonance of Low-Frequency Basin Modes
Long Rossby Wave Basin-Crossing Time Low-Frequency Basin Modes
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2008/6/13
The ability of long-wave low-frequency basin modes to be resonantly excited depends on the efficiency with which energy fluxed onto the western boundary can be transmitted back to the eastern boundary...
Structure of the Instability Associated with Harmonic Resonance of Short-Crested Waves
Structure Instability Associated Harmonic Resonance Short-Crested Waves
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2008/6/6
Harmonic resonance of a short-crested water wave field, one of the three-dimensional water waves, is due to the multiple-like structure of the solutions. In a linear description, the harmonic resonanc...
Forced Oscillations near the Critical Latitude for Diurnal-Inertial Resonance（图）
Forced Oscillations Critical Latitude Diurnal-Inertial Resonance
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2008/5/28
Oscillations at, or close to, the inertial frequency are widely observed in shelf seas where frictional damping is weak. In the vicinity of latitudes 30°N and S, such motions may become significantly ...