Nahant to Gloucester, high-resolution seismic-reflection profiles
This report presents high-resolution maps of the seafloor offshore of Massachusetts, from Nahant to Gloucester. Approximately 134 km² of the inner shelf were mapped with a focus on the nearshore region in water depths less than 40 m. The maps were prepared as part of a cooperative mapping program between the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM). They are based on marine geophysical data, sediment sampling, and bottom photography obtained on two research cruises carried out in 2003 and 2004. The primary objective of this program is to develop a suite of seafloor maps that provide geologic information for management of coastal and marine resources. Accurate maps of seafloor geology are important first steps toward protecting fish habitat, delineating marine reserves, and assessing environmental changes due to natural or human impacts. The maps also provide a geologic framework for scientific research, industry and the public.
Find Related Datasets
Search by Tags
Click any tag below to search for similar datasets
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Brian Andrews",
"@type": "vcard:Contact",
"hasEmail": "mailto:bandrews@usgs.gov"
}
|
| description | This report presents high-resolution maps of the seafloor offshore of Massachusetts, from Nahant to Gloucester. Approximately 134 km² of the inner shelf were mapped with a focus on the nearshore region in water depths less than 40 m. The maps were prepared as part of a cooperative mapping program between the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM). They are based on marine geophysical data, sediment sampling, and bottom photography obtained on two research cruises carried out in 2003 and 2004. The primary objective of this program is to develop a suite of seafloor maps that provide geologic information for management of coastal and marine resources. Accurate maps of seafloor geology are important first steps toward protecting fish habitat, delineating marine reserves, and assessing environmental changes due to natural or human impacts. The maps also provide a geologic framework for scientific research, industry and the public. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://pubs.usgs.gov/of/2005/1293/html/appendix1.html",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.a0d87e91-5339-473f-800a-190aedda5203.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_a0d87e91-5339-473f-800a-190aedda5203 |
| keyword |
[
"Atlantic Ocean",
"CMGP",
"Coastal and Marine Geology Program",
"DF-1000",
"Edgetech",
"GeoTIFF",
"Gloucester",
"Marine Geology",
"Massachusetts Bay",
"Nahant",
"Salem Sound",
"Seafloor",
"Sidescan",
"Sidescan Sonar",
"South Essex Ocean Sanctuary",
"U.S. Geological Survey",
"USGS",
"USGS:a0d87e91-5339-473f-800a-190aedda5203",
"WHSC",
"Woods Hole Science Center",
"field activity serial number RAFA03007",
"field activity serial number RAFA04002",
"geoscientificInformation",
"geospatial datasets",
"greyscale image",
"image collections",
"imageryBaseMapsEarthCover",
"marine geology",
"marine geophysics",
"oceans",
"seafloor mapping",
"seismic reflection methods",
"sub-bottom profiling"
]
|
| modified | 2025-09-23T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -70.942180, 42.388418, -70.660046, 42.577803 |
| theme |
[
"geospatial"
]
|
| title | Nahant to Gloucester, high-resolution seismic-reflection profiles |
