Sonar, short for Sound Navigation and Ranging, is helpful for exploring and mapping the ocean because sound waves travel farther in the water than do radar and light waves.
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Who cares about seafloor mapping? We all do! Check out our interactive quiz with Cobalt, the nautical frog.
Lionfish are popular saltwater aquarium fish, Nowadays, they also live in western Atlantic waters off the East Coast of the U.S.
Visit NOAA's arcade portal for games and interactive activities focused on ocean and air themes. There's something for kids of all ages!
Thank you for visiting NOAA's National Ocean Service. Take our website user survey. We welcome your ideas, comments, and suggestions.
NOAA 2016 tide tables are now available. NOAA tide tables have been in production for 150 years and are used by both commercial and recreational mariners for safe navigation.
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