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RISLocalized Coupling between Surface and Bottom-Intensified Flow over Topography
Publisher: American Meteorological Society
Abstract: Substantial bottom topography in a basin with planetary vorticity gradients strongly affects the vertical structure of the linear topographic and planetary Rossby waves that spin up the ocean circulation. There is no ...
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Publisher: American Meteorological Society
Time Integration of Diapycnal Diffusion and Richardson Number–Dependent Mixing in Isopycnal Coordinate Ocean Models
Publisher: American Meteorological Society
Abstract: In isopycnal coordinate ocean models, diapycnal diffusion must be expressed as a nonlinear difference equation. This nonlinear equation is not amenable to traditional implicit methods of solution, but explicit methods ...
Weddell Polynya Transport Mechanisms in the Abyssal Ocean
Publisher: American Meteorological Society
Abstract: AbstractWeddell Polynya transport mechanisms in the deep and abyssal oceans are examined in the NOAA Geophysical Fluid Dynamics Laboratory?s (GFDL) coupled climate model CM2G. During an 1820-yr-long integration of the ...
Buoyancy-Driven Circulation in an Ocean Basin with Isopycnals Intersecting the Sloping Boundary
Publisher: American Meteorological Society
Abstract: The dynamics that govern the spreading of a convectively formed water mass in an ocean with sloping boundaries are examined using an isopycnal model that permits the interface between the layers to intersect the sloping ...
An Exploration of the Role of Transient Eddies in Determining the Transport of a Zonally Reentrant Current
Publisher: American Meteorological Society
Abstract: The meridional Ekman transport in a zonally reentrant channel may be balanced by diabatic circulations, standing eddies associated with topography, or by Lagrangian mean eddy mass fluxes. A simple model is used to explore ...
The Role of Eddies in Determining the Structure and Response of the Wind-Driven Southern Hemisphere Overturning: Results from the Modeling Eddies in the Southern Ocean (MESO) Project
Publisher: American Meteorological Society
Abstract: The Modeling Eddies in the Southern Ocean (MESO) project uses numerical sensitivity studies to examine the role played by Southern Ocean winds and eddies in determining the density structure of the global ocean and the ...
On the Relationship of the Circumpolar Current to Southern Hemisphere Winds in Coarse-Resolution Ocean Models
Publisher: American Meteorological Society
Abstract: The response of the Circumpolar Current to changing winds has been the subject of much debate. To date most theories of the current have tried to predict the transport using various forms of momentum balance. This paper ...
Observations of Seasonal Variations in Atmospheric Greenhouse Trapping and Its Enhancement at High Sea Surface Temperature
Publisher: American Meteorological Society
Abstract: The correlation between observed values of atmospheric greenhouse trapping and sea surface temperature is found to vary seasonally. Atmospheric greenhouse trapping is defined here as the difference between infrared emissions ...
Large-Scale Oceanographic Constraints on the Distribution of Melting and Freezing under Ice Shelves
Publisher: American Meteorological Society
Abstract: Previous studies suggest that ice shelves experience asymmetric melting and freezing. Topography may constrain oceanic circulation (and thus basal melt?freeze patterns) through its influence on the potential vorticity (PV) ...