Invasive lionfish threaten native fish and the environment in U.S. Atlantic coastal waters.  More

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Upwelling is a process in which deep, cold water rises toward the surface.  More

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Marine snow is a shower of organic material falling from upper waters to the deep ocean.  More

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Mariners are once again able to travel the 74.5 miles along the St. Marys River between Lake Superior and Lake Huron via the Soo Locks. The locks were recently reopened following closure during the long, cold winter months. And, thanks to the water-level data delivered by the NOAA Physical Oceanographic Real-Time System (PORTS®), mariners have the information needed to help them safely navigate their way....

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A new NOAA-led study documents the first cases of lobomycosis in bottlenose dolphins in North Carolina. This fungal skin infection is usually associated with warmer tropical waters. Researchers are now working to determine how factors like water temperature, salinity and coastal land-use might be influencing the types, prevalence and severity of these type of infections....

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On April 15, NOAA dedicated a new state-of-the-art research vessel, R/V Bay Hydro II, which will collect oceanographic data in the Chesapeake Bay region critical to safe navigation and environmental protection....

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Undergraduate students from Rutgers University are finalizing preparations to launch an ocean glider on a journey from New Jersey to Spain. If the craft completes the trip, it will be the first unmanned underwater vehicle to successfully cross the Atlantic....

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Simulated visual images can be much more effective than charts and graphs in drawing attention to the potential impacts of coastal development and policy changes. But until recently, many coastal resource managers lacked the skills, resources, and time to create effective visualizations with the software they had available....

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The time it takes to produce a new nautical chart varies greatly. Nautical charts show what is in, under, and around the water, to help mariners transit our waters safely. The time it takes to develop a new nautical chart varies and it depends on the intensity of the activity in the area and the availability of resources to develop that chart.  More

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The numbers on a nautical chart represent soundings or depth data. Soundings are water depth measurements that indicate how deep the water is in a particular area in either feet or fathoms.  More

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