Found 1128 datasets matching filters. (clear all filters)
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These topographic/bathymetric digital elevation models (DEMs) were collected and compiled to characterize erosion and deposition in the Colorado River and in an adjacent zone of laterally...
Search relevance: 1.00 | Views last month: 47 | Catalog Last Checked: May 05, 2026 at 07:43 PM -
Merged multibeam bathymetry--Catalina Basin and northern Gulf of Santa Catalina, southern California
This part of the data release includes 10-m resolution merged multibeam-bathymetry data of Catalina Basin and northern Gulf of Santa Catalina. The data are presented as a TIFF file. In February...
Search relevance: 1.00 | Views last month: 35 | Catalog Last Checked: May 05, 2026 at 09:18 PM -
This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-backscatter data collected in the Gulf of Alaska during U.S. Geological Survey (USGS) cruise MGL1109...
Search relevance: 1.00 | Views last month: 26 | Catalog Last Checked: May 05, 2026 at 09:01 PM -
Multibeam and splitbeam mapping operations will be conducted 24 hours a day throughout the cruise. Sub-bottom profile mapping will be conducted 24 hours a day at the discretion of the...
Search relevance: 1.00 | Views last month: 20 | Catalog Last Checked: May 05, 2026 at 09:02 PM -
In 2009, the Kootenai Tribe of Idaho released and implemented the Kootenai River Habitat Restoration Master Plan. This plan aimed to restore, enhance, and maintain the Kootenai River habitat and...
Search relevance: 1.00 | Views last month: 20 | Catalog Last Checked: May 05, 2026 at 09:30 PM -
An Ellipsoidally Referenced Survey (ERS) using two Teledyne Reson SeaBat T50-P multibeam echosounders, in dual-head configuration, was conducted by the U.S Geological Survey (USGS) St. Petersburg...
Search relevance: 1.00 | Views last month: 20 | Catalog Last Checked: May 05, 2026 at 08:38 PM -
Multibeam, single beam, and subbottom sonar data will be collected 24 hours a day and XBT casts will be conducted at an interval defined by prevailing oceanographic conditions, but not to exceed...
Search relevance: 1.00 | Views last month: 20 | Catalog Last Checked: May 05, 2026 at 09:00 PM -
This data set contains the sea floor topographic contours, sun-illuminated topographic imagery, and backscatter intensity generated from a multibeam sonar survey of the Stellwagen Bank National...
Search relevance: 1.00 | Views last month: 19 | Catalog Last Checked: May 05, 2026 at 08:35 PM -
This raster dataset represents approximately 49,581 square kilometers of Simrad EM122 multibeam backscatter-intensity data collected in the Bering Sea during U.S. Geological Survey (USGS) cruise...
Search relevance: 1.00 | Views last month: 18 | Catalog Last Checked: May 05, 2026 at 08:52 PM -
An Ellipsoidally Referenced Survey (ERS) using two Teledyne Reson SeaBat T50-P multibeam echosounders, in dual-head configuration, was conducted by the U.S. Geological Survey (USGS) St. Petersburg...
Search relevance: 1.00 | Views last month: 18 | Catalog Last Checked: May 05, 2026 at 08:25 PM -
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: 17 | Catalog Last Checked: May 05, 2026 at 09:40 PM -
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and the Massachusetts Office of Coastal Zone Management (MA CZM), is producing...
Search relevance: 1.00 | Views last month: 16 | Catalog Last Checked: May 05, 2026 at 08:36 PM -
High-resolution geophysical mapping of Lake Powell in the Glen Canyon National Recreation Area in Utah and Arizona was conducted between October 8 and November 15, 2017, as part of a collaborative...
Search relevance: 1.00 | Views last month: 16 | Catalog Last Checked: May 14, 2026 at 06:57 PM -
Bathymetric, topographic, and grain-size data were collected in April 2011 along a 27-mi (43.5 – km) reach of the Colorado River in Grand Canyon National Park, Arizona. The study reach begins at...
Search relevance: 1.00 | Views last month: 15 | Catalog Last Checked: May 05, 2026 at 10:02 PM -
This cruise will include a series of tests to ensure the condition of the new EM 304 that was installed over the winter repair period. The expedition will commence on March 3, 2020 in...
Search relevance: 1.00 | Views last month: 14 | Catalog Last Checked: May 05, 2026 at 09:02 PM -
During EX1402L1, multibeam,single beam, and subbottom data will be collected 24 hours a day and XBT casts will be conducted at an interval defined by prevailing oceanographic conditions,...
Search relevance: 1.00 | Views last month: 14 | Catalog Last Checked: May 05, 2026 at 09:00 PM -
Multibeam mapping, single beam, water column sonar, sub-bottom profile, water column profile, ship sensor, ROV sensor, video and image data will all be collected during this mission.
Search relevance: 1.00 | Views last month: 14 | Catalog Last Checked: May 05, 2026 at 09:00 PM -
Throughout this cruise, multibeam data will be collected 24 hours a day and XBT casts will be conducted every 6 hours. Additionally, EK 60 (split beam) and sub-bottom profile data will...
Search relevance: 1.00 | Views last month: 14 | Catalog Last Checked: May 05, 2026 at 09:01 PM -
This publication releases swath bathymetry and backscatter datasets derived from multibeam bathymetric data acquired by the U.S. Geological Survey (USGS) on the R/V Marcus G. Langseth legs MGL1108...
Search relevance: 1.00 | Views last month: 14 | Catalog Last Checked: May 05, 2026 at 09:53 PM
