Images

 Westco discrete nutrient analyzer measures low-levels of nutrients in water samples

Sunset over Blackwater River photographed from the wildlife drive at Blackwater National Wildlife Refuge (NWR). Blackwater NWR is one of 560 refuges in the refuge system administered by the U.S. Fish and Wildlife System. Photo credit: Ray Paterra, USFWS 

Overwash processes caused by storms, like the one seen here following Hurricane Sandy on a barrier island in Virginia, push sand landward over dunes to create low-elevation, minimally vegetated sandy habitats used by a variety of species, like piping plovers.

The streamer is flaked out on the deck with a make shift workbench for tools.  The technical staff (Geological Survey of Canada) are sharing a lighter moment during trouble shooting and repair aboard CCGS Louis S. St-Laurent.

Digital still photograph from Ipswich Bay near Salisbury, MA, showing a lobster, sponges, and brachiopods, on cobbles and ledge covered with bubblegum algae and red filamentous algae.  A thin veneer of coarse sand and gravelly sediment partially cover the rocks. Water depth at this location is approximately 24 meters.

Macroalgae, seagrass, and litter in West Falmouth Harbor, MA

 Sunrise with a recently deployed buoy measuring meteorological data off Fire Island, NY in 2012.  The data collected is part of a study of the coastal processes that mobilize and transport sediment in the region

Anti-fouling treatment is applied to a sensor on a platform about to be deployed off Fire Island, NY in 2012.  The data collected is part of a study of the coastal processes that mobilize and transport sediment in the region

Map of Fire Island, N.Y. study area

Brian Buczkowski of the USGS Woods Hole Coastal and Marine Science Center uses a benchtop spectrometer to measure carbonate ion (CO₃²⁻) concentration in a seawater sample during the 7-week 2011 research cruise in the Arctic Ocean aboard the U.S. Coast Guard Cutter Healy. USGS photograph by Lisa Robbins.

Map showing the thickness of a relatively young Pleistocene outwash lobe in meters mapped using chirp seismic-reflection profiles collected in 2011, overlain on acoustic backscatter imagery. Regional bathymetric contours are in meters.

Numerical model grids showing downscaling from larger regional grid (far right) to more refined coastal grid (left). Colors are bathymetry (m).

Example of a rip current experiment. Colors show bathymetry and arrows show velocity vectors after 1 h of model simulation. Similar to results in Kumar and others, 2012.

Map showing Holocene (modern) sediment thickness in meters overlain on bathymetry. Regional bathymetric contours are in meters. Note the shoreface-attached sand ridges west of Watch Hill.

Cape Hatteras, N.C.

Oceanographic equipment recovery 

Map C.  Backscatter intensity and sun-illuminated topography.  Blue= "soft" seabed, Green, orange = "hard" seabed

Schematic of system designed to control movement and logging of data collected by the Moving Arm Tripod at Martha's Vineyard Coastal Observatory in 2011.

Bathymetry of the New England inner shelf and south shore of Martha’s Vineyard with model grids

Worldwide distribution of observed and inferred gas hydrates in marine and permafrost-associated settings that have been the subject of drilling programs. The color coding refers to the primary sediment type in each location and therefore designates the likely type of gas hydrate reservoir at each site.