Maritime heritage includes not only physical resources such as historic shipwrecks and prehistoric archaeological sites, but also archival documents and oral histories. Maritime heritage can also ...

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 ...

Using the Global Positioning System (GPS), every point on Earth can be given its own unique address—its latitude, longitude, and height. The U.S. Department of Defense developed GPS satellites as a ...

Tiny cells called zooxanthellae live within most types of coral polyps. They help the coral survive by providing it with food resulting from photosynthesis. In turn, the coral polyps provide the ...

Remote sensing is the science of obtaining information about objects or areas from a distance, typically from aircraft or satellites. A Lidar (Light Detection and Ranging) image created with data ...

PCB contamination is high in the Housatonic River and New Bedford Harbor in Massachusetts. According to the EPA, PCBs belong to a broad family of human-created organic chemicals known as chlorinated ...

Ocean noise refers to sounds made by human activities that can interfere with or obscure the ability of marine animals to hear natural sounds in the ocean. Many marine organisms rely on their ability ...

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 ...

Soft corals produce a wide range of shapes and colors and fall into two major categories; true corals and octocorals. True corals are scleractinians, which include hard corals. Octocorals are ...

The Disaster Response Center serves many roles, including as a training facility. Here, U.S. Coast Guard and DRC personnel receive training regarding SMART (Specific, Measurable, Achievable, Realistic ...

This geodetic mark in Louisiana is anchored deep below the ground and was level with the ground when it was originally placed there, but now the ground around the mark has subsided. Subsidence - ...

Harmful algal blooms (HABs) occur when algae — simple photosynthetic organisms that live in the sea and freshwater — grow out of control while producing toxic or harmful effects on people, fish, ...