The nation's ocean and coastal agency: Supporting coastal communities, promoting a robust economy, and protecting coastal and marine ecosystems
tide frequency graphic Thunder Bay shipwreck Russ Green
crashing ocean wave
Why does the ocean have waves?

Waves are created by energy passing through water, causing it to move in a circular motion. Waves are most commonly caused by wind.

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invasive sea grass
Invasive Species

What is an invasive species? Did you know an invasive species can be a plant? Don't miss our interview with a NOAA expert in our latest Diving Deeper podcast.

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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.

View our 2014 Annual Report

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coastal Oregon

Coastal County Snapshots

Have you ever wondered what your coastal county looks like in terms of jobs, flood risk, wetland resources, and other economic and environmental factors?

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Mussel Watch Report

New! See NOAA's first long-term report of the national distribution of parasites and disease in mussels and oysters, using data gathered between 1995 and 2009.

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