Images

Seafloor offshore of Point Estero (PE) showing east (EH) and west (WH) strands of the Hosgri fault zone. Arrow points to a seafloor slope (a 12,000 year old shoreline) that has been offset by the east Hosgri strand, indicating a slip rate of about 2.6 millimeters per year.

Large submarine slides off southern California (outlined in small white dots). Low-resolution bathymetry shown in light grey (approximately 100 meters/pixel). High-resolution bathymetry shown in darker grey (less than 20 meters/pixel).

Researchers survey Elwha River elevation and depths. Clockwise from upper left: setting up a traditional survey instrument above the river; measuring river depths from a kayak with sonar and GPS; walking the beach with GPS backpacks; and determining offshore depths using a personal watercraft with GPS and sonar.

Schematic showing how sediment on the seafloor moves in response to a force created by the combined action of tides, ocean waves, and wind-driven currents.

Video-camera station installed by Jenna Brown and Joe Long atop a hotel in Madeira Beach, Florida.

Screenshot of Total Water Level and Coastal-Change Forecast Viewer (<https://coastal.er.usgs.gov/hurricanes/research/twlviewer/>) on June 4, 2016, two days before Tropical Storm Colin was expected to hit Florida’s Gulf of America coast.

Wave runup at Madeira Beach, Florida, during Tropical Storm Colin

Brain coral spawning coral larvae. The larvae will settle on other surfaces and grow into new coral in a process called recruitment.

Products of Structure-from-Motion applied to data collected by UAS in Black Beach, Falmouth, MA

Edwin B. Forsythe National Wildlife Refuge, New Jersey Study SIte

Map showing the surficial geology of Vineyard and western Nantucket Sounds with equivalent onshore geology (adapted from Stone and DiGiacomo-Cohen, 2009). The areal extents over which offshore subsurface geologic units crop out at the sea floor were interpreted from seismic-reflection data.

Jen Suttles,Woods Hole Coastal and Marine Science Center, collects water samples from a salt marsh tidal creek (East Falmouth, MA) for laboratory analysis of total organic carbon. These samples will be compared to data recorded by instrumentation deployed in an adjacent tidal creek as part of research efforts to quantify carbon dynamics in coastal ecosystems

Map of seabed geology and sun-illuminated topography, Stellwagen Bank Blue and purple = boulder ridges. Redlines = leading edges of sand sheets

Sand ridge morphology and bedform migration patterns offshore of Assateague Island

USGS ocean engineer Gerry Hatcher with the camera system he helped create for recording the precise time and geographic location of each air photo it takes. The system is mounted in the cargo compartment of a Cessna 182R airplane and takes photos through a window cut into a removable cargo door (right).

USGS research oceanographers Jenna Brown and Joe Long installed this video camera atop the Shoreline Island Resort hotel in Madeira Beach, Florida. Starting in February 2017, the camera has recorded video for 17 minutes every hour during daylight hours.

A high resolution digital video camera is installed atop a waterfront hotel at Madeira Beach, Florida, overlooking the Gulf of America coast.

Lush thicket of staghorn coral in the Dry Tortugas National Park

Kathryn Smith of the USGS St.

Sunset at Sage Lot Pond Salt Marsh Observatory marks the end of 16 hour field effort. During this sampling, USGS researchers captured the exchange of materials between the marsh and estuary. This field site provides infrastructure to keep sensors deployed nearly year-round so changes across seasons and extreme events, such as large storms, are captured.

USGS scientists Lauren Toth and Jen Flannery of the St. Petersburg Coastal and Marine Science Center discuss how they study corals to better understand past climate change. The Center participates in the St. Petersburg Science Festival each year.