scholarly journals Satellite-detected fluorescence: Decoupling nonphotochemical quenching from iron stress signals in the South Atlantic and Southern Ocean

2014 ◽  
Vol 28 (5) ◽  
pp. 510-524 ◽  
Author(s):  
T. J. Browning ◽  
H. A. Bouman ◽  
C. M. Moore
Keyword(s):  
Southern Ocean ◽  
Nonphotochemical Quenching ◽  
South Atlantic ◽  
Iron Stress ◽  
The South ◽  
Stress Signals

Ice-rafted volcanic ash in the South Atlantic sector of the Southern Ocean during the last 100,000 years

1983 ◽  
Vol 53 (4) ◽  
pp. 291-312 ◽  
Author(s):  
David G Smith ◽  
Michael T Ledbetter ◽  
Paul F Ciesielski
Keyword(s):  
Southern Ocean ◽  
Volcanic Ash ◽  
South Atlantic ◽  
The South ◽  
Atlantic Sector

3. The Geological Relations of South Georgia

1914 ◽  
Vol 1 (2) ◽  
pp. 61-64
Author(s):  
J. W. Gregory
Keyword(s):  
South America ◽  
Southern Ocean ◽  
Special Interest ◽  
South Atlantic ◽  
Geological History ◽  
The South ◽  
Northern Margin ◽  
South Georgia ◽  
The Andes ◽  
History Of

The special interest of the island of South Georgia depends on the evidence it promises as to the geological history of that part of the Southern Ocean which lies south of the South Atlantic. According to the well-known views of Professor Suess, South Georgia is on a continuation of the mountain line of the Andes, which at the southern end of South America bends eastward along the northern margin of Drake's Sea and continues 30° to the east, where it turns southward; it completes a great horseshoe-shaped course by passing through South Georgia and returning westward through the South Orkneys to Grahamland.

The Greenland Clipper: a fast ocean connection between Greenland and the Southern Ocean

2021 ◽  
Author(s):  
Laurits Andreasen ◽  
Markus Jochum ◽  
Anna von der Heydt ◽  
Guido Vettoretti ◽  
Roman Nuterman
Keyword(s):  
Southern Ocean ◽  
Time Lag ◽  
Vertical Mixing ◽  
Heat Content ◽  
South Atlantic ◽  
Heat Fluxes ◽  
Model Parameters ◽  
The South ◽  
High Northern Latitude ◽  
Adjustment Time

<p>The glacial Dansgaard-Oeschger (DO) events are thought to result in a global reorganization of oceanic heat fluxes and heat content.</p><p>DO events originate in the North Atlantic, but are communicated all the way to the pole of the other hemisphere. This interhemispheric coupling is known as the bipolar seesaw. A striking feature of the bipolar seesaw is the ~100 year time lag between the initial onset at high northern latitudes and the following adjustments at high southern latitudes.</p><p>Here, we focus on this time lag.</p><p>Ultimately high southern latitudes are expected to begin their adjustment, when the sea ice margin in the Southern Ocean (SO) shift position due to cooling/warming in the ocean below. But how is the northern signal propagated into the SO, and what processes control the time it takes the SO to change its state?</p><p>We expect the SO adjustment to have four components: Planetary waves, geostrophic adjustments in the Atlantic, vertical mixing and finally heat fluxes from baroclinic eddies in the SO.</p><p>To investigate the relative importance of these components on the adjustment time in the SO, we apply a fresh water perturbation at high northern latitude in an idealized setup of the Atlantic basin and the Southern Ocean using the newly developed OGCM VEROS. We measure the time it takes the model's Southern Ocean to adjust to the perturbation as a function of different model parameters associated with the components mentioned above.</p><p>We find that the adjustment time - which we believe is related to the bipolar seesaw time lag - is dominated by two components. The first is associated with geostrophic adjustment in the South Atlantic, and the second with the eddy heat fluxes in the Southern Ocean. Interestingly we find that in the limit of a high (realistic) eddy transfer (Gent-McWilliams) coefficient, the geostrophic component constitutes the main part of the the adjustment time and quantitatively matches the observed time lag in the bipolar seesaw.</p><p>This make us suggest that the bipolar seesaw time lag could be caused mainly by adjustments in the South Atlantic.</p>

XXIV.—The Geological Relations and Some Fossils of South Georgia.

1916 ◽  
Vol 50 (4) ◽  
pp. 817-824 ◽  
Author(s):  
J. W. Gregory
Keyword(s):  
South America ◽  
Southern Ocean ◽  
Special Interest ◽  
South Atlantic ◽  
Metamorphic Rocks ◽  
The South ◽  
South Georgia ◽  
The Andes ◽  
Pass Through

The special interest of South Georgia depends on its evidence regarding the geology of the part of the Southern Ocean which lies south of the South Atlantic. According to Professor Suess, the island is an extension of the Andes, which, at the southern end of South America, turn eastward, and by a great horse-shoe-shaped curve pass through South Georgia to the South Orkneys and Graham Land.The geology of South Georgia is but little known. Thürach † described the island as consisting of metamorphic rocks, ranging from granular gneiss to clay-slate, and of diabase tuff.

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