Images

Dredging operations aboard the research vessel Alpha Crucis. The first dredge with successful rock recovery is wrangled back on deck.

Digital elevation model (left) and orthomosaic (right) of the middle Elwha River

A look into the USGS Pacific Coastal and Marine Science Center’s Marine Minerals Laboratory Suite.

A look into the USGS Pacific Coastal and Marine Science Center’s Marine Minerals Laboratory Suite.

Photo shows results of wave-driven flooding and overwash on Roi-Namur Atoll, Republic of the Marshall Islands.

Map showing the amount of sea-level rise that will double the chances of today’s “50-year floods,” which have a 2 percent chance of happening in any year. Warmer colors indicate areas at greater risk.

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.

The 3DR Solo with GoPro Hero4 camera and gimbal. Coming to a beach near you soon.

Exposed bedrock on the beach during very low (negative) tide at Isla Vista, California

An example of the shoreline data for La Jolla Shores, used in the CoSMoS-COAST model. The many squiggly colored lines indicate the changing shoreline location through time [basemaps from Google Earth].

Marine geology enthusiasts at the Council for Geoscience (CGS) conference.

Map of subsea permafrost distributions on the U.S. and Canadian Arctic Ocean margin. The inset map shows the location of the larger map. Subsea permafrost on the Canadian margin was delineated in the 1980s (blue curve). The red curve on the U.S.

Sandy Brosnahan (left) and Jon Borden at Unmanned Aerial Systems (UAS) training in Santa Cruz, California.

Eroding bluffs on Moss Landing State Beach, California, March 2016

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.

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.

Carmel River channel in the former reservoir above San Clemente Dam in Monterey, California.

Underwater photograph showing corals in Tāfeu Cove, National Park of American Samoa, north shore of Tutuila Island, American Samoa.

Gerry Hatcher (left) and Shawn Harrison work on their video-camera station atop a hotel in Santa Cruz, California.

Views of Cowells Beach in Santa Cruz, California, from a 10-minute video shot on May 6, 2017. Snapshot (first frame in video) on left; time-averaged image on right.

Topographic-change image produced by comparing 3D map derived from May 27 air photos with that derived from June 13 air photos. Note that material has eroded from the seaward edge of the toe (yellow and orange tones), and material has built up on beaches to either side of the slide (blue tones).