Previous idealized investigations of Southern Ocean overturning have omitted its connection with the Antarctic continental shelves, leaving the influence of shelf processes on Antarctic Bottom Water (AABW) export unconsidered. In particular, the contribution of mesoscale eddies to setting the stratification and overturning circulation in the Antarctic Circumpolar Current (ACC) is well establish...

[1] Data on the distribution of the partial pressure of CO2 (pCO2) were obtained during six cruises off the Galician coast, a region characterized by a seasonal upwelling. The values of pCO2 over the continental shelf are highly variable and range between 265 and 415 matm during the upwelling season and between 315 and 345 matm during the downwelling season. Both the continental shelf and off-s...

Inversion of NASA Operation IceBridge airborne gravity over the Abbot Ice Shelf in West Antarctica for subice bathymetry defines an extensional terrain made up of east-west trending rift basins formed during the early stages of Antarctica/Zealandia rifting. Extension is minor, as rifting jumped north of Thurston Island early in the rifting process. The Amundsen Sea Embayment continental shelf w...

The study of existing cores collected across the Wilkes Land margin provides us with a better understanding of the sediment distribution and processes across this margin during the Holocene, and during Pleistocene glacial and interglacial cycles. Holocene depositional rates are high in deep (>1000m) inner-shelf basins where diatomaceous ooze is deposited at estimated minimum sedimentation rates...

In the southern Weddell Sea, several water masses with the capability to form Antarctic Bottom Water (AABW) meet near the continental shelf break. The internal tidal field over the continental shelf break here is of interest due to its potential to mix these waters and form AABW. A modified version of the Princeton Ocean Model (POM) was utilized to investigate the internal tidal fields generate...

A jet flowing in the Kelvin wave propagation direction along the seaward side of a continental slope is found to decrease in strength as it leaks mass onto the continental shelf. As a result, a shelf break jet flowing in the opposite direction is induced on the shelf. The combination of these two flows creates a decaying, high-pressure tongue centered about the shelf break. An idealized, reduce...

Since 2008, 26 glider missions have been undertaken along the continental shelf of southeastern Australia. Typically these missions have spanned the continental shelf on the inshore edge of the East Australian Current from 29.5-33.5°S. This comprehensive dataset of over 33,600 CTD profiles from the surface to within 10 m of the bottom in water depths ranging 25-200 m provides new and unpreceden...

11 Multibeam swath bathymetry data collected through the Irish National Seabed Survey provides 12 direct evidence for extensive glaciation of the continental shelf off NW Ireland. Streamlined 13 subglacial bedforms on the inner shelf record former offshore-directed ice flow. The major 14 glacial features, however, consist of well developed, nested arcuate moraines which mark the 15 retreat of a...

In a well-designed North Sea study, Thomas et al. (1) found that atmospheric carbon dioxide (CO 2 ) was absorbed by continental shelf water and was eventually exported into the North Atlantic Ocean. The work confirmed preliminary observations in the same area (2, 3) and provided support for the continental shelf pump hypothesis (4, 5). Thomas et al. then extrapolated Bthe CO 2 uptake by the Nor...