Catalog - Data.gov

Found 18 datasets matching "Boston Harbor-Salem Harbor".

Federal
Nahant_NH_sedcover: Sediment Texture Units of the Sea Floor from Nahant to Salisbury, Massachusetts (polygon shapefile, Geographic, WGS84)
- Organization: Department of the Interior
- Updated: 2024-03-18T00:00:00Z
These data are qualitatively derived interpretive polygon shapefiles defining sediment type and distribution, and physiographic zones of the sea floor from Nahant to Salisbury, Massachusetts. Many...
- xml
- xml
Search relevance: 60.29 | Views last month: 0
Federal
Physiographic Zones of the Sea Floor from Nahant to Salisbury, Massachusetts (polygon shapefile, Geographic WGS 84, Nahant_NH_Pzones)
- Organization: Department of the Interior
- Updated: 2024-03-18T00:00:00Z
These data are qualitatively derived interpretive polygon shapefiles defining sediment type and distribution, and physiographic zones of the sea floor from Nahant to Salisbury, Massachusetts. Many...
- xml
- xml
Search relevance: 58.55 | Views last month: 0
Federal
F00256: NOS Hydrographic Survey , Boston Harbor, Massachusetts, 1981-11-13
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 1981-11-13T00:00:00.000+00:00
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
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Search relevance: 53.55 | Views last month: 0
Federal
Massachusetts Bay and adjacent land: Polygon boundaries for source data of a continuous bathymetry and topography terrain model of the Massachusetts coastal zone and continental shelf: (Esri polygon shapefile, Geographic, NAD 83).
- Organization: Department of the Interior
- Updated: 2024-03-19T00:00:00Z
Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for...
- xml
- xml
Search relevance: 49.72 | Views last month: 0
Federal
National Status and Trends, Benthic Surveillance Project DNA-Xenobiotic Adducts Data, 1991, National Centers for Coastal Ocean Science
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 1992-01-01T00:00:00.000+00:00
In order to determine the current status of and to detect any long-term trends in the environmental quality of U.S. nearshore waters, NOAA initiated the National Status and Trends program in 1984...
- none
Search relevance: 48.41 | Views last month: 0
Federal
Massachusetts Bay and adjacent land: continuous bathymetry and topography terrain model of the Massachusetts coastal zone and continental shelf, (32-bit GeoTIFF, UTM 19 NAD 83, NAVD 88 vertical datum).
- Organization: Department of the Interior
- Updated: 2020-08-07T00:00:00Z
Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for...
- xml
- xml
Search relevance: 48.19 | Views last month: 1
Federal
Tunicate survey on eelgrass in 2017 northwest Atlantic coast New Jersey to Newfoundland
- Organization: Department of the Interior
- Updated: 2020-09-22T00:00:00Z
This dataset consists of one data file (Carman_Et_al_Tunicate_2017_survey_on_eelgrass_quad_data_final) and one definitions file...
- xml
- xml
Search relevance: 47.86 | Views last month: 0
Federal
National Status and Trends, Benthic Surveillance Project Aryl Hydrocarbon Hydrolase (AHH) Data, 1988-1992, National Centers for Coastal Ocean Science
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 1992-01-01T00:00:00.000+00:00
In order to determine the current status of and detect any long-term trends in the environmental quality of U.S. nearshore waters, NOAA initiated the National Status and Trends program in 1984...
- none
Search relevance: 46.11 | Views last month: 0
Federal
National Status and Trends, Benthic Surveillance Project Sites, 1984-1992, National Centers for Coastal Ocean Science
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 1992-01-01T00:00:00.000+00:00
This data set reports information regarding the nominal sampling locations for the National Status and Trends Benthic Surveillance Project sites. One record is presented per site. Each record...
- none
Search relevance: 41.49 | Views last month: 0
Federal
30-m Hillshaded relief image produced from swath interferometric, multibeam, and lidar datasets (navd_bath_30m.tif GeoTIFF Image; UTM, Zone 19N, WGS 84)
- Organization: Department of the Interior
- Updated: 2024-03-18T00:00:00Z
These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...
- xml
- xml
Search relevance: 41.21 | Views last month: 0
Federal
30-m Topography and bathymetry grid produced from swath interferometric, multibeam, and lidar datasets (navd_bath_30m Esri binary grid, UTM Zone 19N, WGS84)
- Organization: Department of the Interior
- Updated: 2024-03-18T00:00:00Z
These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...
- xml
- xml
Search relevance: 40.65 | Views last month: 1
Federal
10-m backscatter mosaic produced from backscatter intensity data from sidescan sonar and multibeam datasets (BS_composite_10m.tif GeoTIFF Image; UTM, Zone 19N, WGS 84)
- Organization: Department of the Interior
- Updated: 2024-03-18T00:00:00Z
These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea...
- xml
- xml
Search relevance: 40.65 | Views last month: 0
Federal
National Status and Trends, Benthic Surveillance Project Chemistry Data, 1984-1992, National Centers for Coastal Ocean Science
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 1992-01-01T00:00:00.000+00:00
The National Status and Trends (NS&T) Benthic Surveillance Project Chemistry data file reports the trace concentrations of a suite of chemical contaminants in marine sediment and benthic fish...
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Search relevance: 40.58 | Views last month: 0
Federal
National Status and Trends, Benthic Surveillance Project Pathology, 1984-1992, National Centers for Coastal Ocean Science
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 1992-01-01T00:00:00.000+00:00
In order to determine the current status of and to detect any long-term trends in the environmental quality of U.S. nearshore waters, NOAA initiated the National Status and Trends program in 1984...
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Search relevance: 37.76 | Views last month: 0
Federal
National Status and Trends, Benthic Surveillance Project Fluorescent Aromatic Compounds (FAC) Data, 1984-1991, National Centers for Coastal Ocean Science
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 1991-01-01T00:00:00.000+00:00
The National Status and Trends (NSandT) Benthic Surveillance Fluorescent Aromatic Compounds (FAC) file reports the trace concentrations of Fluorescent Aromatic Compounds. The presence of FACs in...
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Search relevance: 32.33 | Views last month: 0
Federal
Current Tract Polygons of National Park System Units
- Organization: Department of the Interior
- Updated: 2026-01-20T00:00:00Z
National Park Service Unit tract polygons
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- xml
Search relevance: 6.68 | Views last month: 0
Federal
Administrative Boundaries Centroids of National Park System Units
- Organization: Department of the Interior
- Updated: 2026-02-05T00:00:00Z
National Park Service unit points.
- xml
- zip
- zip
Search relevance: 5.34 | Views last month: 27
Federal
20200110-DO-NOT-USE-Test-Copy-NGDAID-16-Administrative Boundaries of National Park System Units 9/30/2019 - National Geospatial Data Asset (NGDA) NPS National Parks Dataset-DO-NOT-USE
- Organization: Federal Geographic Data Committee
- Updated: 2019-09-30
National Park Service unit boundaries.
- zip
Search relevance: 5.34 | Views last month: 0

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