Shore-based current meters employ radio antennas and high frequency (HF) Radio Detecting and Ranging systems (radar) to measure surface ocean currents. Following the same premise of the ADCP, these ...

Aerial view of Pensacola, Florida collected by NOAA aircraft on October 11, 2026. The National Geodetic Survey (NGS) is collecting aerial damage assessment images of coastal areas in the aftermath of ...

Kelvin waves are difficult to see with the naked eye as they are large in scale, slow moving and don't break onshore like typical ocean waves. In this graphic, satellite radar altimetry measurements ...

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

Marine debris can entangle and harm marine organisms. For air-breathing organisms, such as the green sea turtle, entanglement in debris can prevent animals from being able to swim to the surface, ...

There are approximately 1,000 marine protected areas, or MPAs, located throughout the United States. The largest protected area is located in the remote Pacific, home of two of the largest marine ...

The term "bathymetry" originally referred to the ocean's depth relative to sea level, although it has come to mean “submarine topography,” or the depths and shapes of underwater terrain. In the same ...

VIDEO: Biological debris that falls from higher in the water column is also known as marine snow. Some flakes fall for weeks before finally reaching the ocean floor. As plants and animals near the ...

The horse latitudes are regions located at about 30 degrees north and south of the equator. These latitudes are characterized by calm winds and little precipitation. The horse latitudes are located at ...

This page provides a handy reference of all ocean- and coast-related mobile websites and free applications produced by or in partnership with NOAA. A mobile website is a version of a standard website ...