Found 35 datasets matching filters.
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An Innerspace 456 single-beam echosounder in conjunction with a Trimble® differential Global Positioning System (DGPS), HYPACK® navigation software, and Ashtech Z-Xtreme and Trimble® R8 Global...
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-07 -
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: 2 | Published on: 2026-03-03 -
The U.S. Geological Survey, in cooperation with The Central Nebraska Public Power and Irrigation District (CNPPD), conducted a study that used bathymetric and topographic surveying in...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-03-07 -
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: 2 | Published on: 2026-03-03 -
This geospatial data set contains an interpolated 3-D surface or, triangulated-irregular network (TIN), of the change in elevation, in feet, of the substrate between cross-sections 23 and 39...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-07 -
An Innerspace 456 single-beam echosounder in conjunction with a Trimble® differential Global Positioning System (DGPS), HYPACK® navigation software, and Ashtech Z-Xtreme and Trimble® R8 Global...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-07 -
This geospatial data set contains the points collected by the echosounder on transects in the upstream project reach surrounding the construction area at River Mile 769.8 below Gavins Point Dam...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-07 -
An Innerspace 456 single-beam echosounder in conjunction with a Trimble® differential Global Positioning Satellite system (DGPS), HYPACK® navigation software, and Ashtech Z-Xtreme and Trimble®...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-07 -
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: 0 | Published on: 2026-03-03 -
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: 0 | Published on: 2026-03-03 -
This geospatial data set contains the points collected by the echosounder on transects in the upstream project reach surrounding the construction area at River Mile 770.0 below Gavins Point Dam...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-07 -
This data set includes the locations and hotlinks to photographs of the seafloor in Boston Harbor and the harbor approaches, Massachusetts. The photos were taken using the mini-SEABOSS system...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
In order to test hypotheses about groundwater flow under and into Chesapeake Bay, geophysical surveys were conducted by U.S. Geological Survey (USGS) scientists on Chesapeake Bay and the Potomac...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
Submarine groundwater discharge (SGD) into Maryland's Corsica River Estuary was investigated as part of a larger study to determine the importance of nutrient delivery to Chesapeake Bay via this...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
This data set contains land surface elevations on dry and wadeable portions of transects for the hydrographic surveys on the Missouri River below Gavins Point Dam near River Mile 769.8. This...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-07 -
An Innerspace 456 single-beam echosounder in conjunction with a Trimble® differential Global Positioning System (DGPS), HYPACK® navigation software, and Ashtech Z-Xtreme and Trimble® R8 Global...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-07 -
This data set contains land surface elevations on dry and wadeable portions of transects for the hydrographic surveys on the Missouri River below Gavins Point Dam near River Mile 761.4. This...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-07 -
An Innerspace 456 single-beam echosounder in conjunction with a Trimble® differential Global Positioning System (DGPS) and HYPACK® navigation software, and Ashtech Z-Xtreme and Trimble® R8 GNSS...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-07 -
An Innerspace 456 single-beam echosounder in conjunction with a Trimble® differential Global Positioning System (DGPS), HYPACK® navigation software, and Ashtech Z-Xtreme and Trimble® R8 Global...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-07 -
In order to test hypotheses about groundwater flow under and into Chesapeake Bay, geophysical surveys were conducted by U.S. Geological Survey (USGS) scientists on Chesapeake Bay and the Potomac...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03
