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The Sea Level Response of a Stratified Ocean to Barometric Pressure Forcing
Publisher: American Meteorological Society
Abstract: The nature of the sea surface adjustment to atmospheric loading in a stratified ocean is examined for both midlatitude and equatorial regions, using simple analytical solutions to the quasigeostrophic and equatorial ?-plane ...
Rate of Work Done by Atmospheric Pressure on the Ocean General Circulation and Tides
Publisher: American Meteorological Society
Abstract: Quantitative analysis of the energetics of the ocean is crucial for understanding its circulation and mixing. The power input by fluctuations in atmospheric pressure pa resulting from the S1 and S2 air tides and the ...
Nonequilibrium Response of the Global Ocean to the 5-Day Rossby–Haurwitz Wave in Atmospheric Surface Pressure
Publisher: American Meteorological Society
Abstract: The response of the global ocean to the surface pressure signal associated with the well-known 5-day Rossby?Haurwitz atmospheric mode is explored using analytical and numerical tools. Solutions of the Laplace tidal equations ...
Viscid Eastern Boundary Dynamics and the Spreading of Mediterranean Water along the Portuguese Continental Slope
Publisher: American Meteorological Society
Abstract: A linear, continuously stratified model is used to investigate the flows generated by a midlatitude, eastern boundary zonal inflow representing the flux of Mediterranean Water into the North Atlantic. The model allows for ...
A Simple Model for Deep Equatorial Zonal Currents Forced at Lateral Boundaries
Publisher: American Meteorological Society
Abstract: Deep lateral boundary processes (e.g., western boundary currents) are hypothesized as an alternative energy source exciting the equatorial wave guide at long time scales. A linear, continuously stratified model is used to ...
Oceanic Response to Surface Loading Effects Neglected in Volume-Conserving Models
Publisher: American Meteorological Society
Abstract: Forcing by freshwater fluxes implies variable surface loads that are not treated in volume-conserving ocean models. A similar problem exists with the representation of volume changes implied by surface heat fluxes. Under ...
Low-Frequency Sea Level Variability and the Inverted Barometer Effect
Publisher: American Meteorological Society
Abstract: For a dynamical interpretation of sea level records, estimates are needed of the isostatic, or so-called inverted barometer, signals (?ib) associated with the ocean response to atmospheric loading. Seasonal and longer-period ...
Effects of Unresolved High-Frequency Signals in Altimeter Records Inferred from Tide Gauge Data
Publisher: American Meteorological Society
Abstract: Rapid sea level signals are poorly resolved, or ?aliased,? by the TOPEX/Poseidon altimeter, due to its ?10-day repeat cycle (Nyquist period TN ? 20 days). To assess the potential for temporal aliasing in the altimeter data, ...
Propagating Bottom Pressure Signals around Antarctica at 1–2-Day Periods and Implications for Ocean Modes
Publisher: American Meteorological Society
Abstract: Previous studies of barotropic ocean dynamics have shown that several global normal modes are possible at periods between 1 and 2 days. The role of these modes in diurnal tidal dynamics is well documented, but finding ...
Analysis and Interpretation of Deep Equatorial Currents in the Central Pacific
Publisher: American Meteorological Society
Abstract: Analysis of vertical profiles of absolute horizontal velocity collected in January 1981, February and April 1982 in the equatorial central Pacific revealed two significant narrowband spectral peaks in zonal velocity, ...