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Convection-Driven Melting near the Grounding Lines of Ice Shelves and Tidewater Glaciers
Publisher: American Meteorological Society
Abstract: ubglacial meltwater draining along the bed of fast-flowing, marine-terminating glaciers emerges at the grounding line, where the ice either goes afloat to form an ice shelf or terminates in a calving face. The input of ...
A Simple Model of the Ice Shelf–Ocean Boundary Layer and Current
Publisher: American Meteorological Society
Abstract: cean-forced basal melting has been implicated in the widespread thinning of Antarctic ice shelves, but an understanding of what determines melt rates is hampered by limited knowledge of the buoyancy- and frictionally ...
The Impact of Melting Ice on Ocean Waters
Publisher: American Meteorological Society
Abstract: Ice melts when it is in contact with ocean waters that have temperatures above the in situ freezing point. The product is a mixture of meltwater and seawater having properties intermediate between those of the two components. ...
Adaptation of an Isopycnic Coordinate Ocean Model for the Study of Circulation beneath Ice Shelves
Publisher: American Meteorological Society
Abstract: Much of the Antarctic coastline comprises large, floating ice shelves, beneath which waters from the open ocean circulate. The interaction of the seawater with the base of these ice shelves has a bearing both on the rate ...
Modeling Thermodynamic Ice–Ocean Interactions at the Base of an Ice Shelf
Publisher: American Meteorological Society
Abstract: Models of ocean circulation beneath ice shelves are driven primarily by the heat and freshwater fluxes that are associated with phase changes at the ice?ocean boundary. Their behavior is therefore closely linked to the ...
The Response of Ice Shelf Basal Melting to Variations in Ocean Temperature
Publisher: American Meteorological Society
Abstract: A three-dimensional ocean general circulation model is used to study the response of idealized ice shelves to a series of ocean-warming scenarios. The model predicts that the total ice shelf basal melt increases quadratically ...
The Effect of Meltwater Plumes on the Melting of a Vertical Glacier Face
Publisher: American Meteorological Society
Abstract: reshwater produced by the surface melting of ice sheets is commonly discharged into ocean fjords from the bottom of deep fjord-terminating glaciers. The discharge of the freshwater forms upwelling plumes in front of the ...
Glacial Meltwater Identification in the Amundsen Sea
Publisher: American Meteorological Society
Abstract: ine Island Ice Shelf, in the Amundsen Sea, is losing mass because of warm ocean waters melting the ice from below. Tracing meltwater pathways from ice shelves is important for identifying the regions most affected by the ...
The Role of Meltwater Advection in the Formulation of Conservative Boundary Conditions at an Ice–Ocean Interface
Publisher: American Meteorological Society
Abstract: Upper boundary conditions for numerical models of the ocean are conventionally formulated under the premise that the boundary is a material surface. In the presence of an ice cover, such an assumption can lead to nonconservative ...
Autonomous Underwater Vehicle Measurements of Surface Wave Decay and Directional Spectra in the Marginal Sea Ice Zone
Publisher: American Meteorological Society
Abstract: In March 2003 several autonomous underwater vehicle (AUV) missions were carried out under sea ice in the western Bellingshausen Sea. Data from the upward-looking acoustic Doppler current profiler (ADCP) on the ?Autosub? ...
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