11 Mar '12, 10pm

The Seafloor Focuses and Merges Tsunami Waves [image] #NASA

Scientists have known for years that the shape of the seafloor plays a role in how tsunami waves build up as they approach the coastline. Underwater topography also determines why some areas get hit worse than others. But in the wake of the Tohoku-oki tsunami, scientists now know that seafloor topography affects the strength and height of a tsunami even in the deep ocean and at great distances from the genesis of the wave. Scientists had suspected that underwater mountains and chasms, as well as islands, played a role in deflecting tsunami waves in some places and amplifying them up in others. But it was not until three satellites passed over such waves in March 2011 that they could confirm it. Researchers from NASA’ Jet Propulsion Laboratory (JPL) and the Ohio State University (OSU) used satellite altimeters to observe “merging tsunamis”—wave fronts that combine to form s...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=77331&s...

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NASA Earth Observato The Seafloor Focuses and M...

earthobservatory.nasa.gov 11 Mar '12, 10pm

Scientists have known for years that the shape of the seafloor plays a role in how tsunami waves build up as they approach...

The Seafloor Focuses and Merges Tsunami Waves: ...

earthobservatory.nasa.gov 11 Mar '12, 10pm

Scientists have known for years that the shape of the seafloor plays a role in how tsunami waves build up as they approach...

Effects of the Tohoku Tsunami on the Kitakami R...

earthobservatory.nasa.gov 11 Mar '12, 5pm

In March 2011, a magnitude 9.0 earthquake—the fourth largest recorded since 1900 —triggered a powerful tsunami that pummel...

Effects of the Tohoku Tsunami on the Kitakami R...

earthobservatory.nasa.gov 10 Mar '12, 11pm

In March 2012, a magnitude 9.0 earthquake—the fourth largest recorded since 1900 —triggered a powerful tsunami that pummel...

Effects of the Tohoku Tsunami on the Kitakami R...

earthobservatory.nasa.gov 10 Mar '12, 11pm

In March 2012, a magnitude 9.0 earthquake—the fourth largest recorded since 1900 —triggered a powerful tsunami that pummel...

Learn about the Japan Environment Action Network and how you can help them one year after the #tsunami

Learn about the Japan Environment Action Networ...

oceanconservancy.org 11 Mar '12, 10pm

Our Work Trash Free Seas: On Tsunami Anniversary, Support Cleanup Efforts in Japan On March 11, 2011, a massive earthquake...

Imagery: #Tohoku Earthquake & Tsunami of March ...

earthobservatory.nasa.gov 11 Mar '12, 10pm

In 2011, the fourth largest earthquake in history rocked the coast of Japan, spawning a devastating tsunami. Satellites an...

Japan's tsunami survivors in Singapore share experiences

Japan's tsunami survivors in Singapore share ex...

channelnewsasia.com 11 Mar '12, 2pm

SINGAPORE: Japan marked the first anniversary of the quake and tsunami on Sunday. While the country is on the road to reco...

Ireland : Image of the Day #NASA

earthobservatory.nasa.gov 17 Mar '12, 7am

It is easy to see from this true-color image why Ireland is called the Emerald Isle. Intense green vegetation, primarily g...

Japan PM calls for quicker tsunami waste processing

Japan PM calls for quicker tsunami waste proces...

channelnewsasia.com 11 Mar '12, 2pm

TOKYO: The whole of Japan must redouble efforts to help rid tsunami-hit communities of the millions of tonnes of waste gen...

Closeup of Tsunami Damage, Rikuzentakata: Acquired just three days after the Tohoku earthquake, this natural-col...

Closeup of Tsunami Damage, Rikuzentakata: Acqui...

earthobservatory.nasa.gov 09 Mar '12, 11pm

Situated along the coast of northeastern Japan, the town of Rikuzentakata once had a seemingly peaceful seascape, includin...

Japan prepares to mark first anniversary of tsunami

Japan prepares to mark first anniversary of tsu...

channelnewsasia.com 10 Mar '12, 8pm

TOKYO: Japan was on Saturday preparing to mark the first anniversary of its tsunami, as government papers revealed ministe...

Japan falls silent for tsunami victims

Japan falls silent for tsunami victims

channelnewsasia.com 11 Mar '12, 7am

TOKYO: Japan fell silent for one minute Sunday to remember the 19,000 people who were killed when a huge tsunami smashed i...

Happy St. Patrick's Day! Here's a classic cloud...

earthobservatory.nasa.gov 17 Mar '12, 7am

It is easy to see from this true-color image why Ireland is called the Emerald Isle. Intense green vegetation, primarily g...

Tsunami Debris – Coming to a beach near you?

Tsunami Debris – Coming to a beach near you?

surfrider.org 12 Mar '12, 9pm

Tsunami Debris – Coming to a beach near you? March 12 2012 | Rise Above Plastics , by Bill Hickman This past Sunday marked...