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 ...

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 ...

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

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 ...

Several thousand marine scientists are busy at work in the United States dealing with a diversity of important issues — from climate change, declining fisheries, and eroding coastlines, to 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 ...

Salt marsh within Narragansett Bay National Estuarine Research Reserve. Salt marshes are coastal wetlands which are flooded and drained by tides. Salt marshes are coastal wetlands that are flooded and ...

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 ...

There are many different kinds of wetlands and many ways to categorize them. NOAA classifies wetlands into five general types: marine (ocean), estuarine (estuary), riverine (river), lacustrine (lake), ...

The ocean is divided into three zones based on depth and light level. Although some sea creatures depend on light to live, others can do without it. ‘Photic’ is a derivative of ‘photon,’ the word for ...