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Latest Physical oceanography Stories

2012-08-29 02:20:27

MCLEAN, Va., Aug. 29, 2012 /PRNewswire/ -- Science Applications International Corporation (SAIC) [NYSE: SAI] today announced it has been awarded a contract for the production and delivery of six SAIC Tsunami Buoy (STB) systems by the Japan Meteorological Agency (JMA) in Tokyo, Japan. (Photo: http://photos.prnewswire.com/prnh/20120829/PH64297 ) The STB systems will be deployed at locations in the northwest Pacific Ocean approximately 200 nautical miles east of Sendai, Japan. The coastal...

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2012-08-26 08:52:27

Lawrence LeBlond for redOrbit.com - Your Universe Online Why do some tsunamis, such as the devastating one that struck Japan in March 2011, occur on a much larger scale than scientists expect? The answer, based on a model developed by researchers at the University of Cambridge, lies within the “pop-up” movement of large amounts of sediment. Undersea earthquakes can release huge amounts of energy as tectonic plates slip across each other´s ridge lines. A study in Earth...

Himalayan Glacier Behaviour Mapped By New Study
2012-08-24 11:54:19

Glaciers are one of the largest reservoirs of freshwater on our planet, and their melting or growing is one of the best indicators of climate change. However, knowledge of glacier change has been hampered by lack of data, especially for understanding regional behavior. Measurements from satellites have recently provided the first overview mapping of thickness changes of Himalayan glaciers. In a study published in Nature today, scientists assembled new datasets from Earth-observing...

2012-08-24 00:46:08

A new record of past temperature change in the tropical Atlantic Ocean's subsurface provides clues as to why the Earth's climate is so sensitive to ocean circulation patterns, according to climate scientists at Texas A&M University. Geological oceanographer Matthew Schmidt and two of his graduate students teamed up with Ping Chang, a physical oceanographer and climate modeler, to help uncover an important climate connection between the tropics and the high latitude North Atlantic....

2012-08-16 13:05:19

South Pacific countries will experience more extreme floods and droughts, in response to increasing greenhouse gas emissions, according to a paper out today in the journal Nature. The changes will result from the South Pacific rain band responding to greenhouse warming. The South Pacific rain band is largest and most persistent of the Southern Hemisphere spanning the Pacific from south of the Equator, south-eastward to French Polynesia. Occasionally, the rain band moves northwards towards...

13-year Cascadia Study Suggests Risk For Large Earthquake
2012-08-01 13:16:27

A comprehensive analysis of the Cascadia Subduction Zone off the Pacific Northwest coast confirms that the region has had numerous earthquakes over the past 10,000 years, and suggests that the southern Oregon coast may be most vulnerable based on recurrence frequency. Written by researchers at Oregon State University, and published online by the U.S. Geological Survey, the study concludes that there is a 40 percent chance of a major earthquake in the Coos Bay, Ore., region during the next...

Winds Played Important Role In Keeping Oil Away From South Florida
2012-07-09 16:41:40

New NSF funded study shows how currents and winds shaped where hydrocarbons from Deepwater Horizon went The Deepwater Horizon oil spill in spring 2010 is the largest oil spill in the history of the United States, with more than 200 million gallons of crude oil released at about 1,500 m. depth off the Mississippi Delta in the Gulf of Mexico. At the time of the accident, the proximity of the intense Loop Current, flowing from the Yucatan Channel to the Florida Straits, raised major concerns...

Tree Rings Tell The Tale Of Drought History
2012-07-03 11:58:11

Pitt scientists also discover unexpected complexity to the US West's patterns of drought during the Middle Ages Through an exploration of tree rings and oxygen isotopes, researchers at the University of Pittsburgh are now able to better pinpoint the history of droughts in the arid and semiarid areas of the American West. A paper published in the online July 2 issue of the Proceedings of the National Academy of Sciences explores the Medieval Climate Anomaly, a particularly warm period...

Potential For Tsunamis In Northwestern California
2012-06-28 12:05:44

redOrbit Staff & Wire Reports - Your Universe Online Scientists at UC Santa Barbara have accumulated the first evidence-based inclusive study of the probability for tsunamis in Northwestern California. The paper, "Paleoseismicity of the Southern End of the Cascadia Subduction Zone, Northwestern California," was co-written by professors Edward Keller and Alexander Simms from UCSB's Department of Earth Science, and published in a recent issue of the Bulletin of the Seismological...

'Hotspot' Causing Sea Level Rise Acceleration In Eastern US
2012-06-25 04:46:11

The sea level of the eastern coast of the United States is accelerating at a much faster rate than the country's other coasts due to global warming, claim researchers from the U.S. Geological Survey (USGS). According to Damian Carrington, a reporter with the UK newspaper The Guardian, the sea level rise of the "densely populated" Atlantic coast from Cape Hatteras, North Carolina to Boston, Massachusetts is increasing at a rate three to four times faster than the rest of the country's...


Latest Physical oceanography Reference Libraries

Coral Reef
2013-04-20 15:49:21

Coral reefs are submerged structures consisting of calcium carbonate secreted by corals. Coral reefs are colonies of small animals found in marine waters that enclose few nutrients. The majority of coral reefs are constructed from stony corals, which then consist of polyps that come together in groups. The polyps are like small sea anemones, to which they are very closely related. Unlike the sea anemones, coral polyps secrete hard carbonate exoskeletons which provide support and protections...

Current Sea Level Rise
2013-04-01 10:39:21

The sea levels all around the world are rising. Current sea-level rise has the potential to affect human populations and the natural environment. Two key factors have contributed to the observed sea level rise. The first is thermal expansion: as the ocean water warms, it expands. The second is from the influence of land-based ice because of increased melting. The major store of water on land is found in the glaciers and the ice sheets. The rising of sea levels is one of several lines of...

Basic Ocean Terms
2013-02-05 12:52:11

Image Credit: Meteorologist Joshua Kelly When meteorologists are forecasting for ocean-going vessels, there are a few terms that we need to understand. The first term is wavelength. Wavelength is defined as the distance between two crests or between two troughs as seen in the image above. The example above highlights the crest to crest concept of wavelength. The next term that we use is wave height, and to determine this, we first must look at the wave when it passes our station. When...

Climate Impact On Your Budget For Billings Montana
2012-12-29 12:40:14

If you live in or around Billings, Montana the above graph shows you what you can roughly expect when it comes to heating and cooling your house during the ENSO Phases. In Billings during a normal phase of the ENSO your heating degree days pass 900HDD. However, when El-Nino phase is present the monthly average dropped to around 650.5HDD, which is a pretty significant amount especially when you are talking about paying that heating bill. When the La-Nina phase sets up the heating degree...

Climate Impact On Your Budget For Bismarck, North Dakota
2012-09-18 13:29:03

If you live in or around Bismarck North Dakota the graph shows you what you can roughly expect when it comes to heating and cooling your house during the ENSO Phases. Bismarck North Dakota, with its northern latitude, does have an impact on what type of heating and cooling it sees. During an Normal Phase the HDD for the region hits about 1348 on average. When the region enters into an El-Nino they can expect the amount of HDD’s to decrease to around 970 which really helps cut down on the...

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