The nation's ocean and coastal agency: Supporting coastal communities, promoting a robust economy, and protecting coastal and marine ecosystems
a lionfish bathymetric LIDAR GIS map of Arctic
cargo ships
Marine Transportation

Over 1.34 billion metric tons of cargo, valued at $1.73 trillion, shipped in and out of U.S. ports in foreign trade in 2011. Get to know our marine transportation system.

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Marine debris found in the waters of the Northwestern Hawaiian Islands Marine National Monument
Marine Debris Movement

Dive into our latest Ocean Shorts audio podcast as we explore how marine debris moves in our environment and what causes it to move.

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About NOS

We translate science, tools, and services into action to address threats to coastal areas such as climate change, population growth, port congestion, and contaminants in the environment—all working towards healthy coasts and healthy economies.

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nowCOAST map

Get to Know nowCOAST

Have you seen NOAA's nowCOAST? This GIS-based webmap service provides updated ocean observations along with coastal and marine weather forecasts 24 hours a day.

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scientists launching HAB cyst sampling device

Gulf of Maine "Red Tide" Forecasting

Scientists recently concluded a mission to sample harmful algal bloom cysts in the Gulf of Maine, a key to 2016 'red tide' forecasting.

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