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These data are the trackline from the high-resolution acoustic backscatter measurements of the seafloor from Boston Harbor and the harbor approaches, Massachusetts. Approximately 170 km² of...
Search relevance: 1.00 | Views last month: 14 | Catalog Last Checked: August 01, 2026 at 05:31 AM -
This sediment database contains location, description, and texture of samples taken by numerous marine sampling programs. Most of the samples are from the Atlantic Continental Margin of the...
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: August 01, 2026 at 04:21 AM -
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 pixels). The TRI was...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: August 01, 2026 at 04:15 AM -
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...
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: August 01, 2026 at 04:10 AM -
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...
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: August 01, 2026 at 06:05 AM -
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 bathymetric data...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: August 01, 2026 at 03:26 AM -
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 bathymetric data...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: August 01, 2026 at 05:12 AM -
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 Multibeam Echo Sounder...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 01, 2026 at 05:47 AM -
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...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 01, 2026 at 03:33 AM -
The samples in this dataset were collected and analyzed under the direction of the Massachusetts Water Resources Administration. The data were generated to study the effects of the Boston sewage...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 01, 2026 at 04:43 AM -
Note: Updates to this data product are discontinued. This data set provides farmgate and wholesale prices for select organic and conventional fruits and vegetables, wholesale prices for organic...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: August 01, 2026 at 05:02 AM -
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 Multibeam Echo Sounder...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 05:05 AM -
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...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 05:56 AM -
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...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 04:33 AM -
This data is a qualitatively-derived interpretative polygon shapefile defining the bottom types of the seafloor from Boston Harbor and the harbor approaches, Massachusetts. Approximately 170 km...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 03:54 AM -
These data are high-resolution acoustic backscatter measurements of the seafloor from Boston Harbor and the harbor approaches, Massachusetts. Approximately 170 km² of sidescan sonar data were...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 05:39 AM -
This collection includes time-series oceanographic data collected by U.S. Geological Survey investigators and collaborators as part of experiments to study circulation and sediment transport in...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 03, 2026 at 08:18 AM -
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 Multibeam Echo Sounder...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 05:45 AM -
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 Multibeam Echo Sounder...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 06:12 AM -
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 Multibeam Echo Sounder...
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 06:19 AM
