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RISA Numerical Study on the Influence of the Mid-Atlantic Ridge on Nonlinear First-Mode Baroclinic Rossby Waves Generated by Seasonal Winds
Publisher: American Meteorological Society
Abstract: A numerical model simulation investigates the influence of the mid-Atlantic ridge on nonlinear first-mode baroclinic Rossby waves generated by seasonal wind fluctuations. The North Atlantic is simulated by a square-box, ...
Influence of a Mid-Ocean Ridge on Wind-Driven Barotropic Rossby Waves
Publisher: American Meteorological Society
Abstract: An analytical study investigates the influence of a mid-ocean ridge in a barotropic ocean on the energy radiation by wind-driven, quasi-geostrophic, linear Rossby waves. The ocean basin is bounded on the east and west by ...
Energy Transmission by Barotropic Rossby Waves across Large-Scale Topography
Publisher: American Meteorological Society
Abstract: An analytical study investigates the energy transmission by free, barotropic, linear Rossby waves across a large scale bottom topography when topographic and beta-effects have the same order of magnitude. In open ocean ...
Climatologically Significant Effects of Some Approximations in the Bulk Parameterizations of Turbulent Air–Sea Fluxes
Publisher: American Meteorological Society
Abstract: his paper quantifies the impacts of approximations and assumptions in the parameterization of bulk formulas on the exchange of momentum, heat, and freshwater computed between the ocean and atmosphere. An ensemble of ...
How Topographic Smoothing Contributes to Differences between the Eddy Flows Simulated by Sigma- and Geopotential-Coordinate Models
Publisher: American Meteorological Society
Abstract: The characteristics of the mesoscale turbulence simulated at a resolution of ?° by a sigma-coordinate model (SPEM) and a geopotential-coordinate model (OPA) of the South Atlantic differ significantly. These two types of ...
Seasonal and Interannual Modulation of the Eddy Kinetic Energy in the Caribbean Sea
Publisher: American Meteorological Society
Abstract: ariability of the mesoscale eddy field in the Caribbean Sea is analyzed over the period 1993?2009 using geostrophic anomalies derived from altimeter data and a high-resolution regional model. The Colombia Basin presents ...
Intrinsic Variability of the Atlantic Meridional Overturning Circulation at Interannual-to-Multidecadal Time Scales
Publisher: American Meteorological Society
Abstract: he low-frequency variability of the Atlantic meridional overturning circulation (AMOC) is investigated from 2, ¼°, and ° global ocean?sea ice simulations, with a specific focus on its internally generated (i.e., ?intrinsic?) ...
Mesoscale Eddies in the Labrador Sea and Their Contribution to Convection and Restratification
Publisher: American Meteorological Society
Abstract: The cycle of open ocean deep convection in the Labrador Sea is studied in a realistic, high-resolution (4 km) regional model, embedded in a coarser (?°) North Atlantic setup. This configuration allows the simultaneous ...
Water Mass Transformation in the North Atlantic and Its Impact on the Meridional Circulation: Insights from an Ocean Model Forced by NCEP–NCAR Reanalysis Surface Fluxes
Publisher: American Meteorological Society
Abstract: Decadal-scale climate variability in the North Atlantic thermohaline circulation is simulated using a sigma-coordinate primitive equation model, forced by NCEP?NCAR reanalysis surface forcing fields for the period from ...
Dynamical Response of the Oceanic Eddy Field to the North Atlantic Oscillation: A Model–Data Comparison
Publisher: American Meteorological Society
Abstract: Observational studies have shown that in many regions of the World Ocean the eddy kinetic energy (EKE) significantly varies on interannual time scales. Comparing altimeter-derived EKE maps for 1993 and 1996, Stammer and ...