The Alaska Fisheries Science Center provides bathymetry compilations, along with some associated files, for research purposes only. These data may not be used for navigation. Map showing completed ...

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 ...

Since ancient times, knowing the depth of coastal waters has been key to safe and successful navigation and to exploit the sea's resources. Today, bathymetry—the measurement of sea depth—is even more ...

A bathymetric image of Lake Huron. In the same way that topographic maps represent the three-dimensional features (or relief) of overland terrain, bathymetric maps illustrate the land that lies ...

Storm surge is one of the primary threats when hurricanes make landfall, and there are a lot of factors involved in how high the surge can get. Some of those factors include wind speed, minimum ...

NOAA is mandated to identify Essential Fish Habitat by provisions of the Magnuson-Stevens Act, but the necessary data sets are not always available. In the marine environment, depth and sediment type ...

"Satellite-derived bathymetry will supplement existing methods of data collection, filling in gaps in data where seafloor elevation remains unknown," says Associate Professor David Bruce, an expert in ...

No audio available for this content. As the skipper of Galileo 4, a 50-foot sailboat on the Columbia River, I instruct my crew to alert me if the water under the keel drops below 10 feet and take ...

Bathymetry is the underwater equivalent to topography–the study of surface terrain like hills and valleys on land. Just like dry land, the surface of the seafloor is not always flat. The seafloor can ...