Images

Gas hydrate (white material) binding together coarse-grained sediments made up of pebble-sized rocks. This sample was recovered during a project to explore permafrost-associated gas hydrates in Canada’s Mackenzie Delta.

Left: Key features in and around the Gulf of Alaska. A black rectangle outlines our 2016 study area along the Queen Charlotte-Fairweather fault. Red arrows indicate relative tectonic plate motions. Right: A shaded relief map of the 2016 study area. Rainbow colors show seafloor depths acquired by the USGS in 2015 and 2016. Red indicates shallower depths.

Overview of the 4 Continuous Bathymetry and Elevation Models of the Massachusetts Coastal Zone and Continental Shelf

Browse graphic of the sediment textuer and geomorphology data of the sea floor from Fenwick Island, MD to FIsherman's Island, VA

Location map of HARS site

Graphic showing geophysical and sampling systems used to define the seafloor topography, surface sediments, and underlying geology.

Map interface of Cores, grabs, dredges, slides, and other samples, primarily of marine, estuarine, and lacustrine sediments, curated at the USGS Woods Hole Coastal and Marine Science Center.

Map showing the location of the Delmarva Peninsula with a hillslope shaded relief map of the study area. 

Emily Sturdivant, with the help of her co-pilot, hits the landing target.

David Brankovits collecting water samples in Molnar Janos Cave in Budapest, Hungary.

Elizabeth Pendleton describes USGS work to map the Massachusetts seafloor to State Senator Viriato “Vinny” deMacedo.

Orthomosaic images of Matanzas, Florida, from (a) before and (b) after Hurricane Matthew, and (c) a digital elevation model (DEM) showing the associated topographic change. Note, these results were produced by applying Structure-from-Motion (SfM) to NOAA oblique photographs, but similar results can be obtained using UAS aerial imagery.

 USGS scientists built a model that reproduces the waves, currents (shown in meters per second [m/s]), and sand movement at Fire Island during Hurricane Sandy’s passage (Warner and others, 2017).

Perspective views of multibeam bathymetry data acquired by the USGS aboard the R/V Medeia. Shallower depths in red. Arrows point to the distinct line in the seafloor associated with the Queen Charlotte-Fairweather fault.

Michael Casso, Woods Hole Coastal and Marine Science Center physical scientist,  seeks volunteers from Children’s School of Science students to have their breath measured for carbon dioxide and methane, greenhouse gases USGS scientists measure in the oceans

Ice-like gas hydrates under capping rock encrusted with mussels on the sea floor of the northern Gulf of America.

Browse collage for 2017-003-FA data release

USGS pilot Sandy Brosnahan and Senate Pro Tempore Marc Pacheco discuss the use of Umanned Aerial Systems (UASs, also known as drones) to collect data in coastal environments.

(Top) Methane plumes at the Norfolk Canyon seeps (~1600 meters or 5250 feet) were detected using the EK60 sonar. The water column plumes are shown above the sub-seafloor structure as imaged by high-resolution multichannel seismic data acquired by the USGS and processed by J. Kluesner.

Map of the general expedition area on the northern U.S. Atlantic Margin between Baltimore Canyon and Cape Hatteras

 Map of distribution of fine- and coarse-grained sand, Stellwagen Bank.  Blue and purple = boulder ridges.  Redlines = leading edges of sand sheets