NOAA's National Ocean Service

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tides and currents

nautical charts

career profiles

harmful algal blooms

sea level
rise

Education
Resources

Map showing the sea surface signature of oceanic Kelvin waves across the Pacific Ocean.

What is a Kelvin wave?

Discover how Kelvin waves are different from other types of ocean waves, and how they can form as a result of El Niño.

Ocean Science

A yellow wave data buoy floats at the ocean surface, with a research boat in the background.

NOAA invests $45.7 million to improve ocean observing systems

New cooperative agreements will enable U.S. IOOS regional associations to operate regional coastal observing systems throughout U.S. waters.

Observing

NSRS beta products and tools now available

NOAA is seeking stakeholder evaluation and feedback from members of the geospatial community.

Geodesy

Round Emblem: “*U.S. Coast and Geodetic Survey*” on top, an eagle with an American flag shield representing the 13 original colonies, on top of a globe with the North American continent in the center, flanked by anchors, and “1807” at the bottom.

The Origins of NOAA’s National Ocean Service

In the latest episode of the NOAA Ocean podcast, discover how two U.S. founding fathers’ love of all things maritime played a part in the origin of NOS.

Graphic featuring scientific instruments, a fish illustration, a field notebook, and the text 'Centuries of Science.'

NOAA Heritage Week: Centuries of Science

In September, we celebrated NOAA’s legacy of science, service, and stewardship!

Photo of a rocky coastline and sandy beach with ocean waves crashing against dark rocks under a clear blue sky

NOS awards new funding for coastal flooding research

The research will help facilitate informed adaptation planning and coastal management decisions, as well as evaluate the use of natural infrastructure.

Around the Ocean Service

Real-time data on Olympic Coast helps fishers make critical decisions
SANCTUARIES
Florida partners supercharge teacher workshop at the Guana Tolomato Matanzas Reserve
COASTAL MANAGEMENT
Assessing kelp bed expansion around Kodiak Island in Alaska
COASTAL SCIENCE
The 20th Anniversary of the NOAA Marine Debris Program
MILESTONES