News tagged with southern ocean
Wind shifts may stir CO2 from Antarctic depths
Natural releases of carbon dioxide from the Southern Ocean due to shifting wind patterns could have amplified global warming at the end of the last ice age--and could be repeated as manmade warming proceeds, ...
Space & Earth / Earth Sciences
Mar 12, 2009 |
4.2 / 5 (70) |
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NASA Research Finds Last Decade was Warmest on Record, 2009 One of Warmest Years
(PhysOrg.com) -- A new analysis of global surface temperatures by NASA scientists finds the past year was tied for the second warmest since 1880. In the Southern Hemisphere, 2009 was the warmest year on record.
Jan 21, 2010 |
3.5 / 5 (48) |
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Crossing the icy unknown, hunting climate clues
(AP) -- On the 27th day of their trek, a dozen "black specks" of humanity crawling across Antarctica's vast white silence, Lou Albershardt heard a sound she'd never heard in two decades on the ice.
Space & Earth / Earth Sciences
Mar 21, 2009 |
4.3 / 5 (29) |
0
Study gives clues about carbon dioxide patterns at end of Ice Age
(PhysOrg.com) -- New University of Florida research puts to rest the mystery of where old carbon was stored during the last glacial period. It turns out it ended up in the icy waters of the Southern Ocean near Antarctica.
Space & Earth / Earth Sciences
Oct 25, 2010 |
4.5 / 5 (13) |
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Greenhouse gases to overpower ozone hole
(PhysOrg.com) -- One set of human-created gases is starting to relinquish its hold on Antarctic climate as another group of emissions produced by human activity is starting to take hold, according to a paper ...
Space & Earth / Earth Sciences
Nov 02, 2011 |
4.4 / 5 (13) |
14
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Oceanic seesaw links Northern and Southern hemisphere during abrupt climate change
Very large and abrupt changes in temperature recorded over Greenland and across the North Atlantic during the last Ice Age were actually global in extent, according to an international team of researchers led by Cardiff University.
Space & Earth / Earth Sciences
Feb 25, 2009 |
4 / 5 (13) |
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Faecal attraction: Whale poop fights climate change
Southern Ocean sperm whales are an unexpected ally in the fight against global warming, removing the equivalent carbon emissions from 40,000 cars each year thanks to their faeces, a study found on Wednesday.
Jun 15, 2010 |
4 / 5 (12) |
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Ocean carbon: A dent in the iron hypothesis
Oceanographers Jim Bishop and Todd Wood of the U.S. Department of Energy's Lawrence Berkeley National Laboratory have measured the fate of carbon particles originating in plankton blooms in the Southern Ocean, ...
Space & Earth / Earth Sciences
May 06, 2009 |
4.7 / 5 (10) |
1
'Lost world' discovered around Antarctic vents
Communities of species previously unknown to science have been discovered on the seafloor near Antarctica, clustered in the hot, dark environment surrounding hydrothermal vents.
Jan 03, 2012 |
5 / 5 (9) |
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Earth from Space: Icebreaker event
(PhysOrg.com) -- This animation, made up of eight Envisat radar images, shows the 97-km long B-9B iceberg (right) ramming into the Mertz Glacier Tongue in Eastern Antarctica in early February. The collision ...
Space & Earth / Earth Sciences
Mar 05, 2010 |
4.8 / 5 (9) |
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Global warming's influence on El Nino still unknown
(PhysOrg.com) -- The climate of the Pacific region will undergo significant changes as atmospheric temperatures rise but scientists can not yet identify the influence it will have on the El Nino-Southern Oscillation ...
Space & Earth / Earth Sciences
May 24, 2010 |
3.1 / 5 (11) |
1
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Venomous sea snakes play heads or tails with their predators
In a deadly game of heads or tails venomous sea snakes in the Pacific and Indian Oceans deceive their predators into believing they have two heads, claims research published today in Marine Ecology.
Aug 06, 2009 |
4.6 / 5 (7) |
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Researchers find a 'great fizz' of carbon dioxide at the end of the last ice age
Imagine loosening the screw-top of a soda bottle and hearing the carbon dioxide begin to escape. Then imagine taking the cap off quickly, and seeing the beverage foam and fizz out of the bottle. Then, imagine ...
Space & Earth / Earth Sciences
Aug 25, 2010 |
4.6 / 5 (7) |
11
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First-of-its-kind fluorescence map offers a new view of the world's land plants
(PhysOrg.com) -- Scientists from NASA's Goddard Space Flight Center in Greenbelt, Md., have produced groundbreaking global maps of land plant fluorescence, a difficult-to-detect reddish glow that leaves emit ...
Space & Earth / Earth Sciences
Jun 06, 2011 |
4.6 / 5 (7) |
1
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Amount of coldest Antarctic water near ocean floor decreasing for decades
(PhysOrg.com) -- Scientists have found a large reduction in the amount of the coldest deep ocean water, called Antarctic Bottom Water, all around the Southern Ocean using data collected from 1980 to 2011. ...
Space & Earth / Earth Sciences
Mar 21, 2012 |
5 / 5 (6) |
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Southern Ocean
The Southern Ocean, also known as the Great Southern Ocean, the Antarctic Ocean and the South Polar Ocean, comprises the southernmost waters of the World Ocean south of 60° S latitude. The International Hydrographic Organization has designated the Southern Ocean as an oceanic division encircling Antarctica. Geographers disagree on the Southern Ocean's northern boundary or even its existence (see below), sometimes considering the waters part of the South Pacific, South Atlantic, and Indian Oceans instead.
Some scientists consider the Antarctic Convergence, an ocean zone which fluctuates seasonally, as separating the Southern Ocean from other oceans, rather than 60° S. This ocean zone is where cold, northward flowing waters from the Antarctic mix with warmer sub-Antarctic waters.
The International Hydrographic Organization (IHO) regards the Southern Ocean as the fourth-largest of the five principal oceanic divisions and the latest-defined one. The IHO promulgated the decision on its existence in 2000, though many mariners have long regarded the term as traditional. The Southern Ocean appeared in the IHO's Limits of Oceans and Seas second edition (1937), disappeared from the third edition (1957), and resurfaced in the fourth edition (not yet[update] formally adopted due to a number of unresolved disputes, including the lodgement of a reservation by Australia). This change reflects the importance placed by oceanographers on ocean currents.[clarification needed]
For more information about Southern Ocean, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
