News tagged with oceanography

Ocean Circulation Doesn't Work As Expected

(PhysOrg.com) -- The familiar model of Atlantic ocean currents that shows a discrete "conveyor belt" of deep, cold water flowing southward from the Labrador Sea is probably all wet.

Space & Earth / Earth Sciences

created May 13, 2009 | popularity 4.6 / 5 (29) | comments 52

Oceans Smaller And Warmer

Two new studies out this week give the best scientific estimates of the average depth of the world's oceans, the total amount of water they contain, and the extent to which this water warmed over the last ...

Space & Earth / Earth Sciences

created May 20, 2010 | popularity 3.7 / 5 (22) | comments 81 | with audio podcast

Warming ocean contributes to global warming

The warming of an Arctic current over the last 30 years has triggered the release of methane, a potent greenhouse gas, from methane hydrate stored in the sediment beneath the seabed.

Space & Earth / Earth Sciences

created Aug 14, 2009 | popularity 4.4 / 5 (13) | comments 6

Earth's most prominent rainfall feature creeping northward

The rain band near the equator that determines the supply of freshwater to nearly a billion people throughout the tropics and subtropics has been creeping north for more than 300 years, probably because of ...

Space & Earth / Earth Sciences

created Jul 01, 2009 | popularity 4.4 / 5 (12) | comments 3

Ocean acidification linked to larval oyster failure

Researchers at Oregon State University have definitively linked an increase in ocean acidification to the collapse of oyster seed production at a commercial oyster hatchery in Oregon, where larval growth had ...

Space & Earth / Environment

created Apr 11, 2012 | popularity 4 / 5 (12) | comments 5 | with audio podcast

Scientists focus on Salton Sea as possible earthquake risk

(PhysOrg.com) -- In a bit of coincidental news, no sooner had earthquake scientists posted warnings about the instability of the southern part of the San Andreas Fault hidden beneath the Salton Sea, than an ...

Space & Earth / Earth Sciences

created Jun 27, 2011 | popularity 4.7 / 5 (9) | comments 0 | with audio podcast report

New research sheds light on freak wave hot spots

Stories of ships mysteriously sent to watery graves by sudden, giant waves have long puzzled scientists and sailors. New research by San Francisco State professor Tim Janssen suggests that changes in water depth and currents, ...

Physics / General Physics

created Aug 05, 2009 | popularity 4.3 / 5 (9) | comments 6

Rising CO2 levels at end of Ice Age not tied to Pacific Ocean

At the end of the last Ice Age, atmospheric carbon dioxide levels rose rapidly as the planet warmed; scientists have long hypothesized that the source was CO2 released from the deep ocean.

Space & Earth / Earth Sciences

created Oct 03, 2011 | popularity 5 / 5 (6) | comments 6 | with audio podcast

More deep-sea vents discovered

Scientists aboard the Royal Research Ship James Cook have discovered a new set of deep-sea volcanic vents in the chilly waters of the Southern Ocean. The discovery is the fourth made by the research team ...

Space & Earth / Earth Sciences

created Feb 14, 2011 | popularity 4.8 / 5 (5) | comments 0 | with audio podcast

Seaglider sets new underwater endurance and range records

(PhysOrg.com) -- A University of Washington Seaglider operated for 9 months and 5 days in the Pacific Ocean, an endurance record more than double what any other autonomous underwater vehicle has accomplished ...

Space & Earth / Earth Sciences

created Sep 10, 2009 | popularity 4.8 / 5 (4) | comments 1

Ocean acidification may contribute to global shellfish decline

Relatively minor increases in ocean acidity brought about by high levels of carbon dioxide have significant detrimental effects on the growth, development, and survival of hard clams, bay scallops, and Eastern ...

Space & Earth / Earth Sciences

created Oct 26, 2009 | popularity 2.7 / 5 (7) | comments 2

Hurricane barriers floated to keep sea out of NYC

(AP) -- When experts sketch out nightmare hurricane scenarios, a New York strike tends to be high on the list.

Space & Earth / Earth Sciences

created May 31, 2009 | popularity 3.6 / 5 (5) | comments 7

Mysterious seaweed dump chokes S.Leone's coastline

Massive piles of seaweed have washed ashore along Sierra Leone's coastline, covering the white sand and raising fears for tourism and the fishing industry, officials said Monday.

Space & Earth / Environment

created Jul 04, 2011 | popularity 4.5 / 5 (4) | comments 0

The water temperature in the subtropical Atlantic falls due to wind action

The temperature of water situated in the subtropical Atlantic experienced a drop of 0.15 C between 1998 and 2006. This has been revealed by a study led by the IEO (Spanish Oceanography Institute) which suggests ...

Space & Earth / Earth Sciences

created Jan 26, 2011 | popularity 4.3 / 5 (3) | comments 0

Weather in a Tank

In recent years, U.S. undergraduates have shown an increasing interest in introductory meteorology, oceanography and climate classes. But many students find it difficult to grasp the non-intuitive nature of ...

Space & Earth / Earth Sciences

created Mar 17, 2010 | popularity 4 / 5 (3) | comments 0

Oceanography

Oceanography (compound of the Greek words ωκεανός meaning "ocean" and γράφω meaning "to write"), also called oceanology or marine science, is the branch of Earth science that studies the ocean. It covers a wide range of topics, including marine organisms and ecosystem dynamics; ocean currents, waves, and geophysical fluid dynamics; plate tectonics and the geology of the sea floor; and fluxes of various chemical substances and physical properties within the ocean and across its boundaries. These diverse topics reflect multiple disciplines that oceanographers blend to further knowledge of the world ocean and understanding of processes within it: biology, chemistry, geology, meteorology, and physics.

For more information about Oceanography, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.