Images

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.

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

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.

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

USGS ocean engineers Peter Dal Ferro and Gerry Hatcher, from the Pacific Coastal and Marine Science Center in Santa Cruz, California, deploying a multicorer to sample the seafloor near an Atlantic margin methane seep site.

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

Views of Madeira Beach, Florida, produced from a 17-minute video shot on June 20, 2017. Left: Snapshot, or first frame of video. Right: Time-averaged image, sometimes called a “timex,” created by averaging the intensity of light recorded at each spot, or “pixel,” during the 17-minute video.

Big Sur coast. Red squares mark some of the sites damaged by 2016–17 winter storms, including Mud Creek and Paul’s Slide areas.

Fieldtrip participants at the former San Clemente Dam site.

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

Diagram of different ocean features that contribute to coastal flooding.

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

Installing large boulders as riprap to armor the shore against further erosion at Goleta Beach in Southern California. The tide is very low (negative).

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].

Shawn Harrison uses a GPS-equipped backpack to measure sand elevations during a post-storm survey of beaches in Santa Cruz, California. 

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

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.

Gerry Hatcher with the system he designed to record the precise time and geographic location of each air photo Van Wagenen shoots.

Paul’s Slide. Left: Air photo taken May 27, 2017, one of many that Beth Haddon will analyze with structure-from-motion software to measure changes in ground elevation. Right: Caltrans employees and contractors use an excavator and bulldozer to remove Paul’s Slide debris from California State Highway 1.

Tracklines along which R/V Ocean Starr (2017, red lines) and R/V Norseman (2016, black lines) conducted seismic-reflection surveys, overlaid on high-resolution bathymetry (color background). Yellow stars represent earthquakes of magnitude (M) 7 and greater since 1900.