Images

Science team of the Hawaiian Drowned Reefs Expedition in front of the MMA Valour.

Shown here are three SCUBA divers installing shade structures over experimental Elkhorn corals (Acropora palmata) that have become "bleached," that is, lost all their algal symbionts (also called zooxanthellae) because of the summer 2023 ocean-heat wave. The corals are attached to cement blocks as part of the U.S.

Shown here is a colony of the threatened Elkhorn coral, Acropora palmata, that has succumbed to "bleaching," that is, lost all its algal symbionts (also called zooxanthellae) because of the summer 2023 ocean-heat wave. The coral is attached to a cement block as part of the U.S.

Shown here is a small colony of the threatened Elkhorn coral, Acropora palmata, that has become "bleached," that is, lost all its algal symbionts (also called zooxanthellae) because of the summer 2023 ocean-heat wave. The coral is attached to a cement block as part of the U.S.

Shown here is a colony of the threatened Elkhorn coral, Acropora palmata, that has become "bleached," that is, lost all its algal symbionts (also called zooxanthellae) because of the summer 2023 ocean-heat wave. The coral is attached to a cement block as part of the U.S.

Shown here is a colony of the threatened Elkhorn coral, Acropora palmata, in Dry Tortugas National Park that has become "bleached," that is, lost all its algal symbionts (also called zooxanthellae) because of the summer 2023 ocean-heat wave.

Shown here is a colony of the threatened Elkhorn coral, Acropora palmata, that has become "bleached," that is, lost all its algal symbionts (also called zooxanthellae) because of the summer 2023 ocean-heat wave. The coral is attached to a cement block as part of the U.S.

Scientists aboard the R/V Sikuliaq collecting sediment cores on the Bering Land Bridge Expedition.

USGS Information Specialist Sara Ernst representing USGS at the 2023 Woods Hole Science Stroll.

Coastal communities on the Great Lakes may experience coastal change, including dune erosion. The USGS and NOAA are developing the Total Water and Coastal Change Forecast at sites like this one in Ontanogan, Michigan to provide communities with real-time information for decision making.

A collage of coastal environments used in the Coastal Science Navigator banner. Learn more about the Navigator in the State of Our Nation's Coast project page. 

The USGS Coastal Science Navigator serves as a gateway to USGS Coastal Change Hazards resources and assists users in finding products and tools that will meet their specific needs.  

Photograph of Caitlin Reynolds and the sediment traps from the Gulf of America aboard the R/V Weatherbird. Scientists collect and redeploy the mooring every 6-9 months. 

Kara Doran shares USGS coastal change hazards forecasts and observations with campers from University of South Florida's 2023 Oceanography Camp for Girls.

Map showing rates of bathymetric change in San Francisco Bay from the 1980s to 2010s, from the study Sediment Deposition, Erosion, and Bathymetric Change in San Francisco, California, 1971-1990 and 1999-2020

The Caribbean Coastal Ocean Observing System (CARICOOS) hosted a General Assembly May 26, 2023, in San Juan, Puerto Rico, and featured a presentation about USGS coastal hazards research, shoreline change geonarrative, natural hazards web pages, and other research related to the island.

(a) Excerpt from building base outline database for New York City showing parts of Manhattan, Queens, and Brooklyn. Base outlines and height data were used to calculate total building floor areas, which combined with live and dead load values yields a building's mass.

Surface geology map of New York City after Nikolaou et al. (2001) and Tamaro et al. (2000).

The R/V Weatherbird II docked at the Florida Institute of Oceanography at University of South Florida (USF) College of Marine Science in St. Petersburg, Florida. USGS scientists and partners at Eckerd College and USF load the vessel in preparation for a research cruise as part of a National Science Foundation (NSF)-funded Scientist-at-Sea program.

USGS Research Geologist Curt Storlazzi and FEMA Mitigation Grants Specialist Janan Reilly present at the US Coral Reef Task Force meeting in Washington, D.C. on April 21, 2023.

Dr. Donya Frank-Gilchrist of the USGS St.