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Latest Ocean surface topography Stories

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2010-05-26 13:30:47

Scientists and agencies monitoring the oil spill in the Gulf of Mexico are keeping a wary eye on changes in the nearby Loop Current, a warm ocean current that is part of the Gulf Stream. Beginning as a large flow of warm water from the Caribbean, the Loop Current heads up into the eastern part of the Gulf of Mexico and then turns south before finally moving out through the Straits of Florida and northward into the Gulf Stream. Deep and fast moving, the Loop Current often breaks off and forms...

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2009-09-29 09:33:16

Since May 2009, the tropical Pacific Ocean has switched from a cool pattern of ocean circulation known as La Niña to her warmer sibling, El Niño. This cyclical warming of the ocean waters in the central and eastern tropical Pacific generally occurs every three to seven years, and is linked with changes in the strength of the trade winds. El Niño can affect weather worldwide, including the Atlantic hurricane season, Asian monsoon...

2008-12-16 11:21:22

The U.S. space agency says it is releasing oceanography data that will help scientists around the world better understand climate change. The data being made public comes from the Ocean Surface Topography Mission, a spacecraft known as OSTM/Jason-2 that was developed jointly by the National Aeronautics and Space Administration and the French space agency. Launched June 20, the mission's first validated data products in support of improved weather, climate and ocean forecasts are now being...

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2008-12-10 10:15:32

The latest image of sea-surface height measurements from the U.S./French Jason-1 oceanography satellite shows the Pacific Ocean remains locked in a strong, cool phase of the Pacific Decadal Oscillation, a large, long-lived pattern of climate variability in the Pacific associated with a general cooling of Pacific waters. The image also confirms that El Niño and La Niña remain absent from the tropical Pacific. The new image is available online at:...

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2008-07-30 12:00:00

Less than a month after launch, the NASA-French space agency Ocean Surface Topography Mission (OSTM)/Jason 2 oceanography satellite has produced its first complete maps of global ocean surface topography, surface wave height and wind speed. The new data will help scientists monitor changes in global sea level and the distribution of heat in the ocean. This information is used to monitor climate change and ocean circulation, and to enable more accurate weather, ocean and climate forecasts. The...

2008-07-30 12:01:03

To: TECHNOLOGY EDITORS Contact: Steve Cole, Headquarters, Washington, +1-202-358-0918, stephen.e.cole@nasa.gov, or Alan Buis, Jet Propulsion Laboratory, Pasadena, Calif., +1-818-354-0474, alan.buis@jpl.nasa.gov, both of NASA WASHINGTON, July 30 /PRNewswire-USNewswire/ -- Less than a month after launch, the NASA-French space agency Ocean Surface Topography Mission (OSTM)/Jason 2 oceanography satellite has produced its first complete maps of global ocean surface topography, surface wave...

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2008-07-08 19:15:00

Imagine the lives that could be saved from flash floods and drought, the millions of dollars in fuel costs that could be avoided for fishing vessels, and the homes that could be spared from the effects of coastline erosion if only scientists could more accurately predict the dynamics of Earth's often unpredictable oceans. Armed with increasingly more accurate forecasts, weather services in countries across the globe are improving time-sensitive warnings of cyclones, flooding and high sea...

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2008-06-25 17:50:00

Ocean tides and currents across the globe still hold within their watery grasp the key to unanswered questions about our planet. Scientists hope the new follow-on mission to the Jason 1 and Topex/Poseidon satellite missions, equipped with the latest high-tech instruments, will bring them closer to answering broad fundamental questions: How does ocean circulation vary from season to season, from year to year and from decade to decade? How much can the ocean change from natural and...

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2008-06-20 09:15:00

A new NASA-French space agency oceanography satellite launched today from Vandenberg Air Force Base, Calif., on a globe-circling voyage to continue charting sea level, a vital indicator of global climate change. The mission will return a vast amount of new data that will improve weather, climate and ocean forecasts. With a thunderous roar and fiery glow, the Ocean Surface Topography Mission/Jason 2 satellite arced through the blackness of an early central coastal California morning at 12:46...

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2008-06-16 19:35:00

In economics, there's a metaphor that says "a rising tide lifts all boats," meaning overall improvement in the economy benefits everyone. While that's a good thing in economics, when it comes to our oceans, rising seas are a growing problem for all of us.Global sea level has risen 20 centimeters (eight inches) in the past 100 years, and the rate of rise is predicted to accelerate as Earth warms. Melting ice from Greenland and Antarctica could raise sea level more than one meter (three feet)...


Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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