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RISLow-Frequency Reflection from a Nonmeridional Eastern Ocean Boundary and the Use of Coastal Sea Level to Monitor Eastern Pacific Equatorial Kelvin Waves
Publisher: American Meteorological Society
Abstract: Analytical theory and wind, sea level, and atmospheric pressure data were used to examine low-frequency dynamics near the equatorial eastern Pacific Ocean boundary. The analytical technique involves linking low-frequency ...
Observational and Numerical Evidence for Wind-Forced Coastal Trapped Long Waves
Publisher: American Meteorological Society
Abstract: Recent work has shown that the linear, wind-forced quasi-geostrophic motion of stratified water over shelf topography can be described by a sum of modes, the amplitude of each of these modes satisfying a forced, first-order ...
Analytical Theory for the Quasi-Steady and Low-Frequency Equatorial Ocean Response to Wind Forcing: The “Tilt” and “Warm Water Volume” Modes
Publisher: American Meteorological Society
Abstract: Analytical theory is used to examine the linear response of a meridionally unbounded stratified ocean to large-scale, low-frequency wind forcing. The following results, applied mainly to the equatorial Pacific, were obtained. ...
Why Are Surface Equatorial ENSO Winds Anomalously Westerly under Anomalous Large-Scale Convection?
Publisher: American Meteorological Society
Abstract: Previous work has shown that the near-surface tropospheric response to anomalous heating can be described in terms of damped equatorial Rossby waves and a damped equatorial Kelvin wave. The zonal and meridional extent of ...
Origin of the Coastally Trapped Waves Observed during the Australian Coastal Experiment
Publisher: American Meteorological Society
Abstract: Freely propagatiug coastally trapped waves (CTWs) dominated the large alongshore-scale low-frequency variability in the Australian Coastal Experiment (ACE). Two analytical models are used to demonstrate that these waves ...
The Dynamics of Large-Scale, Wind-Driven Variations in the Antarctic Circumpolar Current
Publisher: American Meteorological Society
Abstract: A nonlinear model is developed and analytical results obtained to discuss the response of the Antarctic Circumpolar Current to wind forcing over a wide range of frequencies. The main results are as follows: (i) The nonlinear ...
Application of a Frictional Channel Flow Theory to Flow in the Prince of Wales Channel, Torres Strait
Publisher: American Meteorological Society
Abstract: Turbulent flow is considered in a narrow, constant-depth channel connecting two basins having a time-dependent sea-level difference. The bosom stress is taken to be linear rather than quadratic in velocity, even when flows ...
The Reflection of Equatorial Waves from Oceanic Boundaries
Publisher: American Meteorological Society
Abstract: Theory is developed to discuss the reflection of long equatorial waves from ocean boundaries. The main results are as follows: 1) Energy flux reflection coefficients for the reflection of equatorial waves from meridional ...
Why Is the Westward Rossby Wave Propagation from the California Coast “Too Fast”?
Publisher: American Meteorological Society
A Verified Estimation of the El Niño Index Niño-3.4 since 1877
Publisher: American Meteorological Society
Abstract: Decadal and longer time-scale variabilities of the best known El Niño?Southern Oscillation (ENSO) indexes are poorly correlated before 1950, and so knowledge of interdecadal variability and trend in ENSO indexes is dubious, ...