-
Physiographic Zones of the Sea Floor from Nahant to Northern Cape Cod Bay,...
These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and... -
Digital Shoreline Analysis System version 4.3 transects and long-term linear...
Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and... -
Digital Shoreline Analysis System version 4.3 shoreline intersection points...
Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and... -
Hillshaded relief image derived from elevations of the Holocene...
These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and... -
Surficial sediment data from Boston Harbor collected during USGS Field...
This data set includes the locations, identifiers, grain-size data and(or) textural descriptions of surficial sediments collected at stations based on topographic and... -
Hillshaded relief image derived from elevations of the Holocene...
These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and... -
H02129B: NOS Hydrographic Survey, ,
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation... -
Airborne geophysical survey: Massachusetts Coop '68, Massachusetts
Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. This dataset presents latitude, longitude,... -
30 meter Esri binary grids of coastal response type probabilities with...
The U.S. Geological Survey has been forecasting sea-level rise impacts on the landscape to evaluate where coastal land will be available for future use. The purpose of this... -
Sea floor ruggedness analysis for the Stellwagen Bank National Marine...
The Terrain Ruggedness Index (TRI) calculates the average difference in elevation between a small area (a center pixel of 13 x 13 m) and its surrounding area (neighboring... -
6-m resolution grid of multibeam bathymetry of western Massachusetts Bay map...
The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea EM 1000... -
H00178: NOS Hydrographic Survey, ,
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation... -
5-m interval contours of smoothed multibeam bathymetry in western...
The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea EM 1000... -
10-m resolution gray-scale image of multibeam backscatter intensity in...
The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea EM 1000... -
Geographic Locations of Images in the USGS Collection of Photographs from...
The U.S. Geological Survey, in collaboration with the National Oceanic and Atmospheric Administration's (NOAA) National Marine Sanctuary Program, conducted seabed mapping and... -
Hillshade of Multibeam Bathymetry 2 meter/pixel of Boston Harbor and...
These data are high-resolution bathymetric measurements of the seafloor from Boston Harbor and the harbor approaches, Massachusetts. Approximately 170 km² of sidescan sonar and... -
Long-term and short-term shoreline change rates for the region north of...
The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use... -
Sea floor slope analysis for the Stellwagen Bank National Marine Sanctuary...
The slope analysis of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts was performed using the slope tool in the Spatial Analyst extension in... -
Sea floor ruggedness analysis for the Stellwagen Bank National Marine...
The Terrain Ruggedness Index (TRI) calculates the average difference in elevation between a small area (a center pixel of 13 x 13 m) and its surrounding area (neighboring... -
Intersects for coastal region north of Boston, Massachusetts, generated to...
The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast and support local land-use...