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The Net Transport of the Antarctic Circumpolar Current through Drake Passage
Net Transport Drake Passage Antarctic Circumpolar Current
2009/2/8
Estimates of the net transport through Drake Passage are made for three periods during which the year-long DRAKE 79 current meter array spanning the Passage was in operation. Relative geostrophic shea...
Monitoring the Transport of the Antarctic Circumpolar Current at Drake Passage
Antarctic Circumpolar Current Drake Passage
2009/2/6
Data from an extensive moored instrument array and three hydrographic cruises are used to calculate a time series of the net transport through the upper 2500 m of the Drake Passage. The baroclinic geo...
Topographic Influences on Wind-Driven, Stratified Flow in a β-Plane Channel：An Idealized Model for the Antarctic Circumpolar Current
Topographic Influences Wind-Driven Stratified Flow β-Plane Channel Antarctic Circumpolar Current
2008/12/27
Topographic influences are examined in an eddy-resolving model of oceanic channel flow forced by steady zonal winds. With small explicit lateral friction, transient eddies generated by the baroclinic ...
Vorticity Dynamics of Seasonal Variations of the Antarctic Circumpolar Current from a Modeling Study
Antarctic Circumpolar Current Seasonal Variations
2008/12/24
A one-layer numerical model was developed to analyze the vorticity dynamics of the seasonal variations of currents in the Southern Ocean. The model includes the continental geometry and bathymetry of ...
Wind-Driven Flow over Topography in a Zonal β-Plane Channel：A Quasi-geostrophic Model of the Antarctic Circumpolar Current
Circumpolar Current Wind-Driven Flow Zonal β-Plane Channel Antarctic Circumpolar Current
2008/12/23
The paper gives a detailed account of the dynamical balance of a wind-driven zonally unbounded flow over topography. The problem is investigated with a quasi-geostrophic β-plane channel with two layer...
The Flow of Antarctic Bottom Water into the Brazil Basin
Antarctic Bottom Water Brazil Basin
2008/12/19
The total transport of Antarctic Bottom Water across the Rio Grande Rise, including the western boundary, the Vema Channel, and the Hunter Channel is estimated from hydrographic measurements across th...
Multiple Zonal Jets in a Quasigeostrophic Model of the Antarctic Circumpolar Current
Antarctic Circumpolar Current Quasigeostrophic Model Multiple Zonal Jets
2008/12/17
The presence of multiple zonal fronts in the Antarctic Circumpolar Current (ACC), a phenomenon described as zonation, has been confirmed by many observations suggesting that the fronts are circumpolar...
Isopycnal Momentum Budget of the Antarctic Circumpolar Current in the Fine Resolution Antarctic Model
Antarctic Circumpolar Current Fine Resolution Antarctic Model
2008/12/16
The momentum budget of the Antarctic Circumpolar Current (ACC) is analyzed using data from the Fine Resolution Antarctic Model (FRAM), using density as a vertical coordinate, since density is approxim...
Effect of Sea Ice on the Salinity of Antarctic Bottom Waters
Antarctic Bottom Waters Sea Ice
2008/12/12
Brine rejection during the formation of Antarctic sea ice is known to enhance the salinity of dense shelf waters in the Weddell and Ross Seas. As these shelf waters flow off the shelves and descend to...
Topographic Steering of the Antarctic Circumpolar Current
Antarctic Circumpolar Current bottom topography spherical geometry
2008/12/12
An analytic model of the Antarctic Circumpolar Current (ACC) is presented in which information contained in a hydrographic section is propagated along characteristics. The characteristics are obtained...
A Linear Equivalent Barotropic Model of the Antarctic Circumpolar Current with Realistic Coastlines and Bottom Topography
equivalent barotropic Antarctic Circumpolar Current
2008/12/10
A linear equivalent barotropic (EB) model is applied to study the effects of the bottom topography H and baroclinicity on the total transport and the position of the Antarctic Circumpolar Current (ACC...
The Dynamics of the Antarctic Circumpolar Current
Antarctic Circumpolar Current Antarctic Circumpolar Current
2008/12/9
The dynamics of the Antarctic Circumpolar Current (ACC) in a near-eddy-resolving model of the Southern Ocean (FRAM) are investigated. A streamwise coordinate system is used, rather than a more convent...
Antarctic Bottom Water Flux in the Equatorial Western Atlantic
Antarctic Bottom Water lower North Atlantic Deep Water World Ocean Circulation Experiment
2008/11/26
A moored array at the equator in the western basin of the Atlantic provides a 604-day time series of abyssal currents and temperatures spanning the full breadth of the Antarctic Bottom Water (AABW) fl...
Supersaturated N2O in a perennially ice-covered Antarctic lake: Molecular and stable isotopic evidence for a biogeochemical relict
Supersaturated N2O perennially ice-covered Antarctic lake Molecular and stable isotopic evidence biogeochemical relict
2014/4/21
The east lobe of Lake Bonney, a permanently ice-covered lake in the McMurdo Dry Valleys, Antarctica, has a mid-depth maximum N2O concentration of 43.3 μmol N L-1 (>700,000% saturation with respect to ...
Effect of the Missing Indonesian Throughflow in the Fine Resolution Antarctic Model
Indonesian Throughflow Fine Resolution Antarctic Model South of Tasmania
2008/11/13
South of Tasmania, the Fine Resolution Antarctic Model (FRAM) shows a narrow band of westward flow in the surface layer. The authors argue that this is caused by the closure of the Indonesian passage ...