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Hurricane Katrina battered the city of New Orleans and many other areas of the Gulf Coast when it came ashore in August 2005. Dr. Isaac Ginis, a Professor of Oceanography at The University of...
From the water, red mangroves appear to form an impenetrable tangle of roots,...
At the entrance of most beaches, there is a bulletin board with notices about...
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We all know that hurricanes can have destructive effects on human communities...

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Watch as a team of wave chasers heads to Somoa where they search for an undersea river five kilometers beneath the ocean's surface. There they measured skyscraper-sized internal gravity waves, which break and produce strong...
Large waves are a draw for surfers, scientists and spectators alike to...
When hurricanes blow through an area, they don’t just have an impact on...

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I became interested in weather phenomena when I took physics in high school. At the time, I just wanted to understand how...
Since 1902, more than 40 centimeters of mangrove peat could have accumulated at the Belize site, enough to entrap and bury small pieces of pumice. But Juan’s vexing questions persisted: Why hadn’t...
At the entrance of most beaches, there is a bulletin board with notices about water conditions: maybe a faded sign warning about rip currents and a list of this week's tide tables. Most people pass...
As a geological oceanographer at the Smithsonian National Museum of Natural History, Dr. Maggie Toscano has made a career of documenting how coastal systems have changed over thousands of years in...
Dr. Isaac Ginis presented "Eye on the Storm: Predicting a Hurricane's Path of Destruction", in October 2010. This second installment of the Changing Tides lecture series featured Dr. Isaac Ginis, a...
Watch as a team of wave chasers heads to Somoa where they search for an undersea river five kilometers beneath the ocean's surface. There they measured skyscraper-sized internal gravity waves, which...
From the water, red mangroves appear to form an impenetrable tangle of roots, trunks, and leaves—a protective barrier against storms and tsunamis. More about mangroves can be found in our Mangroves...
Even when viewed from space, Hurricane Irene looks sizable. When a NASA satellite took this image on August 23, 2011 the storm was 410 miles in diameter, with clouds covering eastern Cuba. Irene is...
We all know that hurricanes can have destructive effects on human communities and infrastructure—but what about their effects on coastal wetlands? Until Hurricane Katrina, no one had ever mapped...
A tsunami is a set of waves created by a disturbance, likely an earthquake, which reaches the surface of the sea.
This image shows four tropical storm systems in the Atlantic Ocean basin on September 8, 2011. In this arresting image you can see Maria, Katia, Nate, and Lee--all four storm systems--in one NOAA...
This map shows volcanoes of Central America and within the Caribbean Sea. The red triangles represent volcanoes known to have erupted in recent time (within the last 10,000 years) and white stars are...
Large waves are a draw for surfers, scientists and spectators alike to locations around the world. Changes to the coast and ocean floor as well as sediment flow can change the nature of a wave as it...
What do you get when you mix together a hurricane, the remnants of a wintry midwestern storm, and cold Arctic air? The " Frankenstorm ," which is what the US National Weather Service renamed...
Dr. Isaac Ginis, an expert in hurricane modeling from The University of Rhode Island's Graduate School of Oceanography, is the second featured speaker in Changing Tides: A Series of Ocean Discussions...
When hurricanes blow through an area, they don’t just have an impact on humans. These intense wind events also cause great damage to the ecosystems (pdf) they touch. They harm marine animals by...
Hurricane Katrina battered the city of New Orleans and many other areas of the Gulf Coast when it came ashore in August 2005. Dr. Isaac Ginis, a Professor of Oceanography at The University of Rhode...
Tsunamis, giant waves caused by underwater earthquakes, speed across the ocean at 400 miles per hour. Early warning systems, such as NOAA’s DART systems, are key to saving lives. Today, 47 DART...
Using maps and graphics, Smithsonian geologist Dr. Liz Cottrell provides an overview of the major earthquake and tsunami that struck Japan on March 11, 2011—one of the largest ever recorded globally...
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