Found 197 datasets matching filters.
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In freshwater bodies of New Hampshire, the most problematic aquatic invasive plant species is Myriophyllum heterophyllum or variable leaf water-milfoil. Once established, variable leaf...
Search relevance: 1.00 | Views last month: 8 | Published on: 2026-03-03 -
Bear Lake is a tectonic lake that has existed for at least several hundred thousand years. The lake basin is a relatively simple half graben, a spoon-shaped depression tilted toward the main fault...
Search relevance: 1.00 | Views last month: 5 | Published on: 2026-03-03 -
This part of DS 781 presents the seafloor-character map of the Offshore of Tomales Point map area, California. The raster data file is included in "SeafloorCharacter_OffshoreTomalesPoint.zip,"...
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-03 -
Accurate data and maps of sea-floor geology are important first steps toward protecting habitat, delineating marine resources, and assessing environmental changes due to natural or human effects....
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-03 -
A geophysical and geological survey was conducted at the mouth of the Connecticut River from Old Saybrook to Essex, Connecticut, in September 2012. Approximately 230 linear kilometers of digital...
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-03 -
This part of DS 781 presents the seafloor-character map of the Offshore of Half Moon Bay map area, California. The raster data file is included in "SeafloorCharacter_OffshoreHalfMoonBay.zip",...
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-03 -
The U.S. Geological Survey (USGS), in cooperation with the Connecticut Department of Environmental Protection and National Oceanic and Atmospheric Administration (NOAA), is producing detailed...
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-03 -
These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey, Coastal and Marine Geology Program, Woods...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-03-03 -
A two-week field operation was conducted in the John Day Reservoir on the Columbia River to image the floor of the pool, to measure the distribution and thickness of post-impoundment sediment, and...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-03-03 -
This shapefile denotes the location of underwater photos and/or video that were collected by NOAA scientists using a Spectrum Phantom S2 ROV (remotely operated vehicle). Photos and/or video were...
Search relevance: 1.00 | Views last month: 2 | Published on: 2025-12-19 -
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA), is producing detailed geologic maps of the coastal sea floor. Bathymetric and...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-03-03 -
This part of DS 781 presents the seafloor-character map Offshore of Bodega Head, California (raster data file is included in "SeafloorCharacter_BodegaHead.zip," which is accessible from...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-03-03 -
This part of DS 781 presents the seafloor-character map Offshore of Fort Ross, California (raster data file is included in "SeafloorCharacter_OffshoreFortRoss.zip," which is accessible from...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-03-03 -
Accurate data and maps of sea-floor geology are important first steps toward protecting habitat, delineating marine resources, and assessing environmental changes due to natural or human effects....
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
Marine Geologic data compilations and reports in the NCEI archive are from academic and government sources around the world. Over ten terabytes of analyses, descriptions, and images of sediment...
Search relevance: 1.00 | Views last month: 1 | Published on: 2025-12-18 -
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: 1 | Published on: 2026-03-03 -
Coral Point Count with Excel extensions (CPCe; Kohler and Gill, 2006) was used to help calculate percent of coral cover or other benthic substrates from a randomly selected subset of seafloor...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
This shapefile denotes the location of underwater photos and/or video that were collected by NOAA scientists using a Spectrum Phantom S2 ROV (remotely operated vehicle). Photos and/or video were...
Search relevance: 1.00 | Views last month: 1 | Published on: 2025-12-19 -
The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA), is producing detailed geologic maps of the coastal sea floor. Bathymetry,...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
In 2008, the U.S. Geological Survey (USGS), Woods Hole Coastal and Marine Science Center (WHCMSC), in cooperation with the U.S. Army Corps of Engineers conducted a geophysical and sampling survey...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03
