Satellite radar altimeter measurements reveal the sea surface signature of oceanic Kelvin waves. Sea level anomalies show where the ocean surface is higher or lower than its long-term average. The ...

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

A North Atlantic right whale mother and calf spotted off the U.S. southern coast by NOAA researchers during the 2020 breeding season. Stellwagen Bank National Marine Sanctuary in Massachusetts is a ...

Chocolate chip sea cucumber found at Johnston Atoll. Most sea cucumbers are scavengers, moving along the seafloor and feeding on tiny particles of algae or microscopic marine animals collected with ...

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 ...

The Castillo de San Marcos National Monument in St. Augustine, Florida, stands sentinel over Matanzas Bay. The coquina structure remains sturdy after three centuries. The natural coquina outcroppings ...

Scientists are testing how fast soil is building up in this marsh on Maryland's Eastern Shore. Recording this data over time in a variety of marshes around Chesapeake Bay may yield new insights about ...

Hurricane Laura rapidly strengthened on August 26 in the Gulf of Mexico. By the time Laura reached southwest Louisiana early on August 27, maximum sustained winds reached 150 mph. This part of the ...

Scientists have suspected for a while that Greenland sharks lived extremely long lives, but they didn’t have a way to determine how long. The age of other shark species can be estimated by counting ...

Water temperature and pressure determine how far sound travels in the ocean. While sound moves at a much faster speed in the water than in air, the distance that sound waves travel is primarily ...

Latitude lines circle the Earth from east to west. They are also called parallels, because they are aligned to one another and never intersect. They allow us to determine our position north or south ...