Images

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.

Oblique aerial photographs of Ocracoke Island, NC, from May 6, 2008 (top, pre-storm) and August 30, 2011 (bottom, post-storm, acquired three days after landfall of Hurricane Irene). The yellow arrow in each image points to the same feature. Overwash deposits of sand extend over the road after the storm.

Upper image: Oblique aerial photograph near Rodanthe, NC, looking south along the coast on August 30, 2011, three days after landfall of Hurricane Irene. Center: Oblique aerial photograph of central part of upper image from May 6, 2008, pre-storm; and August 31, 2011, post-storm. The yellow arrow in each image points to the same cottage.

Upper image: Oblique aerial photograph of Pea Island National Wildlife Refuge, NC, looking north along the coast on August 30, 2011, three days after landfall of Hurricane Irene.

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

Susan Russell-Robinson points out a fossil ammonite in the limestone floor tiles of the Eisenhower Executive Office Building in Washington, D.C.

Map of Fire Island, N.Y. study area

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 

Bird's-eye view map of a section of the seafloor off southern California, made with depth data. The map shows a channel wall that has been cut by the San Diego Trough fault and moved about 20 meters. This feature is about 1,000 meters below sea level.

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

Oblique aerial photographs of Hatteras Village, NC, from May 6, 2008 (top, pre-storm) and August 30, 2011(bottom, post-storm, acquired three days after landfall of Hurricane Irene). The yellow arrow in each image points to the same cottage.

Satellite photo of Guam from NASA’s Earth Observing-1 (EO-1) satellite's Advanced Land Imager.

USGS Pacific Coastal and Marine Science Center's research vessel R/V Parke Sanvely motors through Alviso Slough in the southern end of San Francisco Bay. Scientists were collecting depth data to make a detailed bathymetric map of the Bay.

Steaming to the deployment site south of Martha's Vineyard, MA in 2011. The platform shown was specially adapted so the arm cycles up and down through the Benthic Boubdary Layer while deployed on the seafloor.  For more information see https://soundwaves.usgs.gov/2011/11/fieldwork2.html.

Ice conditions in the Arctic from CCGS Louis S. St-Laurent.