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RISA Station-Based Southern Annular Mode Index from 1884 to 2005
Publisher: American Meteorological Society
Abstract: Atmospheric pressure observations from the Southern Hemisphere are used to estimate monthly and annually averaged indexes of the southern annular mode (SAM) back to 1884. This analysis groups all relevant observations in ...
Deep Velocity Profiling Using Lowered Acoustic Doppler Current Profilers: Bottom Track and Inverse Solutions
Publisher: American Meteorological Society
Abstract: Lowered acoustic Doppler current profilers (LADCPs) have matured from an experimental instrument to an operational hydrographic tool to study ocean dynamics. The data processing, however, is still in a rather primitive ...
Analysis of Seasonal Current Variations in the Western Equatorial Indian Ocean: Direct Measurements and GFDL Model Comparison
Publisher: American Meteorological Society
Abstract: The seasonal cycles found in moored current measurements in the equatorial Somali Current region and along the equator between 50° and 60°E are compared with the multilayer Geophysical Fluid Dynamics Laboratory model for ...
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Publisher: American Meteorological Society
Synchronous Variability in the Southern Hemisphere Atmosphere, Sea Ice, and Ocean Resulting from the Annular Mode
Publisher: American Meteorological Society
Abstract: Zonally symmetric fluctuations of the midlatitude westerly winds characterize the primary mode of atmospheric variability in the Southern Hemisphere during all seasons. This is true not only in observations but also in an ...
Is Bottom Boundary Layer Mixing Slowly Ventilating Greenland Sea Deep Water
Publisher: American Meteorological Society
Abstract: Bottom water temperatures in the central Greenland Sea have been increasing for the last two decades. The warming is most likely related to the absence of deep convective mixing, which cools and freshens the deep water. ...
A Model of the Zonally Averaged Stratification and Overturning in the Southern Ocean
Publisher: American Meteorological Society
Abstract: The ocean area south of the Antarctic Circumpolar Current (ACC) frontal system is a region of major watermass modification. Influx of North Atlantic Deep Water (NADW), small-scale mixing, eddy transport and diffusion, as ...
Sea Surface Conditions Remotely Sensed by Upward-Looking ADCPs
Publisher: American Meteorological Society
Abstract: Surface data obtained from 153-kHz acoustic Doppler current profilers deployed in the Greenland Sea at about 350-m depth during the winter of 1988/89 were investigated under several aspects. First a method is described to ...
On the Linkage between Antarctic Surface Water Stratification and Global Deep-Water Temperature
Publisher: American Meteorological Society
Abstract: he suggestion is advanced that the remarkably low static stability of Antarctic surface waters may arise from a feedback loop involving global deep-water temperatures. If deep-water temperatures are too warm, this promotes ...
Dynamics of Isolated Convective Regions in the Ocean
Publisher: American Meteorological Society
Abstract: An initially resting ocean of stratification N is considered, subject to buoyancy loss at its surface of magnitude B0 over a circular region of radius r, at a latitude where the Coriolis parameter is f. Initially the ...