Tides & Currents

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Pink dye was released along the coast of the Gulf of Mexico by CARTHE researchers and its movement tracked using underwater sensors, two small drones, a helicopter and a kite. In this photo you...
The Woods Hole Oceanographic Institution's "Line W" program is conducting...
NOAA is working with students across the globe to place floating buoys...
As a geological oceanographer at the Smithsonian National Museum of Natural...

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The “garbage patches,” as referred to in the media, are areas of marine debris concentration in the North Pacific Ocean, circulated by the North Pacific gyre. The gyre spreads across the Pacific Ocean from Japan to the western US...
When you look underwater, what is making the seagrass wave in the water? The...
Researchers launch one-meter-tall plastic drifters into the Gulf of Mexico...

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At the entrance of most beaches, there is a bulletin board with notices about water conditions: maybe a faded sign warning...
This is the world’s first unmanned, underwater robot—or “glider”—to cross an ocean basin, the pioneering Scarlet Knight . The robotic glider, also known as RU27, can dive to depths of 200 meters (660...
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...
In the Pacific Ocean, four ocean currents merge to form the North Pacific gyre, also known as the North Pacific Subtropical High, which spans the western US to Japan, and Hawaii to California. This...
The arrows show the direction of ocean currents recorded by William Dampier while crossing “La Grande Mer du Sud”—the Pacific Ocean. The map appeared in Dampier’s second book, Voyages and...
Orange shaded areas are major drainage basins of Belize, Guatemala, and Honduras that contribute sediment to the Caribbean. Wind and current patterns are represented by red and black arrows,...
But what path, precisely, did this pumice take to reach Belize from the Guatemalan Highlands? Maps of drainage networks that reach the Gulf of Honduras and currents in the western Caribbean Sea are...
A boat full of SCOPE drifters waits to release small, biodegradable buoys that will travel throughout the Gulf of Mexico and send GPS coordinates to researchers. This is the second experiment by...
The Deepwater Horizon disaster has imperiled the ecosystem along the U.S. Gulf Coast. Most oil spills have occurred at the ocean surface. This one, originating at the ocean floor and rising up...
The Woods Hole Oceanographic Institution's "Line W" program is conducting research to better understand how the oceans and the atmosphere work together to cause, and are affected by, climate...
Part 5 of a 6-part series describing Woods Hole Oceanographic Institution's efforts to understand the scope and impact of the Deepwater Horizon oil spill in the Gulf of Mexico. "Tracking the Currents...
The Bay of Fundy in Nova Scotia, Canada has the highest tidal range. The tides range from 3.5m (11ft) to 16m (53ft) and cause erosion to the landscape, creating massive cliffs.
CREDIT: Provided by Rutgers University Glider Technology Now Used to Study Oil Spill in Gulf of Mexico The first underwater robotic vehicle—or “glider”—to cross an ocean is the centerpiece of a new...
Algae, like all organisms, normally grow in balance with their ecosystems, limited by the amount of nutrients in the water. But sometimes, certain species of algae reproduce so rapidly that they...
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...
Rip currents are dangerous and fast moving.
Scientists met the robotic glider Scarlet Knight about halfway along its journey of scientific exploration from the United States to Spain, discovering that barnacles were growing on the glider’s...
When you look underwater, what is making the seagrass wave in the water? The answer is ocean currents . Ocean currents are continuous movements of water in the ocean that follow set paths, kind of...
Ocean conditions change every hour of every day. Tides, currents, and winds are constantly in flux. NOAA’s real-time data helps huge ships navigate safely under bridges and around obstacles. Explore...
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