Images

We use a Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES) to determine the Sr/Ca in coral aragonite samples in the laboratory at the USGS St. Petersburg Coastal and Marine Science Center.

The CMHRP is testing the calcification rates of different genetic strains of threatened Elkhorn coral (Acropora palmata) to advise local and Federal agencies engaged in coral reef restoration.

“Variance” images derived from the same videos used in the studies. Left, Madeira Beach; right, Cowells Beach. In a variance image, the more variation in light intensity at a given pixel, the brighter the value assigned to that pixel. Bright areas indicate many changes in light intensity, caused by a lot of movement.

Shawn Harrison uses his new skills to check out the surf at Santa Cruz, California.

Examples of sediment dynamics offshore of barrier islands include the development and erosion of shoals, tidal deltas, and sand ridges.

Using the computer-driven triaxial micro-milling machine to subsample a coral slab. 

SEM image of a Globigerinoides ruber specimen from the Gulf of Mexico.

Photo of waves on the beach at Fire Island

Photo collage of the shoreline, beaches, and dunes at Fire Island

Elkhorn corals (Acropora palmata) on the seafloor along the northeastern coast of Buck Island, U.S. Virgin Islands, have died and collapsed into rubble. As coral reef structure degrades, habitat for marine life is lost and nearby coastlines become more susceptible to storms, waves, and erosion.

Healthy elkhorn coral (Acropora palmata) on the seafloor along the southeastern coast of Buck Island, U.S. Virgin Islands. Elkhorn coral is one of many important reef-building species that create 3D structure on the seafloor. Coral reef structure provides habitat for marine life and helps break up waves as they approach the coastline.

Scanning electron microscope (SEM) image of calcareous planispiral estuarine foraminifera Cribroelphidium poeyanum collected from Grand Bay estuary.

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.

Scanning electron microscope (SEM) image of calcareous trochospiral estuarine foraminifera Ammonia tepida collected from Grand Bay estuary

Scanning electron microscope (SEM) image of agglutinated marsh foraminifera Entzia macrescens.

Calcification monitoring station with a colony of the massive starlet coral, Siderastrea siderea, fastened in place.

Multicores collected from the northern Gulf of Mexico. These cores contain roughly 1 meter of sediment from the seafloor, and represent the past ~2000 years of deposition.

Low dunes near Cape Canaveral launch pads 39A and 39B often overwash during storm events, transporting sand landward. Critical infrastructure may be buried or flooded. In addition, significant landward transport of sand may lead to extensive shoreline erosion.

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.

Fieldtrip participants at the former San Clemente Dam site.