Seafloor Mapping
Seafloor Mapping
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Hurricane Sandy Response- Linking the Delmarva Peninsula's Geologic Framework to Coastal Vulnerability
The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy. In order to better constrain controls on coastal vulnerability and evolution, the region’s sediment sources, transport pathways and sediment sinks must be identified. This project defines the geologic framework of the Delmarva coastal system through...
California Seafloor Mapping Program data collection
Here we describe the data collection methods and techniques of the California Seaflor Mapping Program: mapping, video and photography ground-truthing, and seismic profiling data collection.
California Seafloor Mapping Program map-set production
USGS and the California Ocean Protection Council (COPC) are supporting development of peer-reviewed map sets for California’s mainland State Waters.
California State Waters Map Series: Map sheets and accompanying pamphlet
The map sheets display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. The total number of sheets varies by area.
California Seafloor Mapping Program applications
California Seafloor Mapping Program data and map publications have and will be used for a large range of applications in coastal zone management and research.
U.S. Geological Survey Gas Hydrates Project
The USGS Gas Hydrates Project has been making contributions to advance understanding of US and international gas hydrates science for at least three decades. The research group working on gas hydrates at the USGS is among the largest in the US and has expertise in all the major geoscience disciplines, as well as in the physics and chemistry of gas hydrates, the geotechnical properties of hydrate...
Sea Floor Mapping Group
The Sea Floor Mapping Group (SFMG) is a core capability at the Woods Hole Coastal & Marine Science Center (WHCMSC) that provides support for coastal, lacustrine and marine geologic research. The staff has a wide-range of expertise and is responsible for geophysical and sampling data acquisition, processing, interpretation and publication, logistics, design, and research and development. SFMG has...
National Seafloor Mapping and Benthic Habitat Studies
The Stellwagen Bank region, located off Boston, Massachusetts, just east of Massachusetts Bay between Cape Cod and Cape Ann, is a glaciated terrain of shallow banks and deep basins with water depths ranging from 20 to 200 meters. The region is heavily utilized by humans and marine species. It serves as a National Marine Sanctuary; a rich commercial and recreational fishing ground; a disposal site...
Coastal Model Applications and Field Measurements
Numerical models are used by scientists, engineers, coastal managers, and the public to understand and predict processes in the coastal ocean. This project supports the development and application of open-source coastal models and has several objectives: 1) improve the code of numerical sediment-transport models by implementing new or improved algorithms; 2) obtain measurements of coastal ocean...
Caribbean Tsunami and Earthquake Hazards Studies
Puerto Rico and the Virgin Islands are located at an active plate boundary between the North American plate and the northeast corner of the Caribbean plate. Plate movements have caused large magnitude earthquakes and devastating tsunamis. The USGS has an ongoing program to identify and map the faults in this region using various geophysical and geological methods in order to estimate the location...
Geologic Mapping Offshore of Rhode Island
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA), is mapping sea-floor geology and sedimentary environments offshore of Rhode Island. This site provides links to bathymetric, sidescan-sonar, sediment, photographic, seismic-reflection, and interpretive datasets, all presented in Geographic Information System (GIS) formats and...
Science Support for the Mississippi Coastal Improvement Project
Since 2007, the USGS (with NPS and USACE) has been mapping the seafloor and substrate around the Mississippi barrier islands to characterize the near-surface stratigraphy and identify the influence it has on island evolution and fate.