731 datasets found
-
Federal
National Hydrography Dataset (NHD) - USGS National Map Downloadable Data Collection NGDA
Department of the Interior —
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's... -
Federal
EnviroAtlas -- Cyanobacteria Index for the Continental United States
U.S. Environmental Protection Agency —
This dataset shows the temporal frequency and spatial extent of cyanobacteria cells in large, freshwater lakes and reservoirs across the continental United States... -
Federal
ATTAINS Assessments
U.S. Environmental Protection Agency —
State water quality assessment decisions reported to EPA under the Integrated Report (IR), and Clean Water Act Sections 303(d) and 305(b). This service provides... -
Federal
Pharmaceuticals in the Environment, Information for Assessing Risk (PEiAR)
National Oceanic and Atmospheric Administration, Department of Commerce —
The database provides information on prescribed amounts, levels detected in aquatic environments, chemical structure, molecular weight, octanol-water partition... -
Federal
National Hydrography Dataset Plus High Resolution (NHDPlus HR) - USGS National Map Downloadable Data Collection
Department of the Interior —
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography... -
Federal
National Fish Habitat Action Plan (NFHAP) - Coastal Spatial Framework and Coastal Indicator Data
National Oceanic and Atmospheric Administration, Department of Commerce —
The NFHAP Coastal Spatial Framework and Indicator Datasets consist of a geospatial base layer developed in ArcGIS, and associated data fields joined to the spatial... -
Federal
Paired Sentinel-2 – water quality databases for estuaries and tidal freshwater rivers.
U.S. Environmental Protection Agency —
There are five datasets included in this collection. One dataset (SiteInventoryunique.shp) provides metadata for sampling stations associated with estuarine water... -
Federal
Using eDNA as a viable fish monitoring approach in Northern Gulf estuarine habitats
U.S. Environmental Protection Agency —
A web-browser enabled (HTML) document and Excel file (Water quality parameters and DNA Sequence Reads) that contain detailed data used to inform results presented in... -
Federal
National Estuarine Research Reserve System - NERRS - Vegetation Monitoring Data
National Oceanic and Atmospheric Administration, Department of Commerce —
The National Estuarine Research Reserve System has developed a consistent protocol for monitoring vegetation across the nations estuaries. Eventually, the goal is to... -
Federal
Unvegetated to vegetated ratio of marsh units in Chesapeake Bay salt marshes
Department of the Interior —
This data release contains coastal wetland synthesis products for Chesapeake Bay. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh... -
Federal
Tribal Land Boundary Polygons, R6 and R9 U.S.-Mexico Border Region, 2021, U.S. Environmental Protection Agency
U.S. Environmental Protection Agency —
This polygon feature class contains the boundaries of tribes in the U.S. - Mexico Border region used by U.S. EPA Region 6 (R6) and U.S. EPA Region 9 (R9) for the... -
Federal
Delaware Bay Upper Shelf Bottom Sediments 2008-2010
National Oceanic and Atmospheric Administration, Department of Commerce —
The Coastal Program of Delaware's Division of Soil and Water conservation (DNREC), the University of Delaware, Partnership for the Delaware Estuary, and the New... -
Federal
1995 - 2007 Ecosystem History of South Florida's Estuaries Database
Department of the Interior —
The 1995 - 2007 Ecosystem History of South Florida's Estuaries Database contains listings of all sites (modern and core), modern monitoring site survey information... -
Federal
NCCOS Long-term Monitoring Project: Regional Ecological Assessments and National Benthic Inventory
National Oceanic and Atmospheric Administration, Department of Commerce —
NOAA's National Centers for Coastal Ocean Science (NCCOS) works in partnership with other federal agencies and coastal states to conduct assessments of ecological... -
Federal
Elevation of marsh units in Massachusetts salt marshes
Department of the Interior —
This data release contains coastal wetland synthesis products for Massachusetts, developed in collaboration with the Massachusetts Office of Coastal Zone Management.... -
Federal
Landsat surface temperature
U.S. Environmental Protection Agency —
Relatively cloud-free Landsat scenes within ±3 days of coincident in situ measures were retained for validation across the CONUS. The Landsat surface temperature data... -
Federal
National Centers for Coastal Ocean Science (NCCOS) long-term monitoring: Regional Ecological Assessments and National Benthic Inventory (NCEI Accession 0202842)
National Oceanic and Atmospheric Administration, Department of Commerce —
The NCCOS Regional Ecological Assessments (REA) and NOAA National Benthic Inventory (NBI) include observations of water quality, sediment quality, fish and shellfish... -
Federal
Estuarine Salinity Zones in US East Coast, Gulf of Mexico, and US West Coast from 1999-01-01 to 1999-12-31 (NCEI Accession 0127396)
National Oceanic and Atmospheric Administration, Department of Commerce —
These unprojected (geographic coordinates) 3-Zone Average Annual Salinity Digital Geographies are based on analysis of long-term salinity data for 147 estuaries of... -
Federal
National Status and Trends: Mussel Watch Program - Resurrection Bay Database
National Oceanic and Atmospheric Administration, Department of Commerce —
In response to the growing concerns among Native communities about the safety of subsistence shellfish, this project assessed the health risks associated with... -
Federal
Pacific Northwest Carbon Stocks and Blue Carbon Database Project - NERRS/NSC(NERRS Science Collaborative)
National Oceanic and Atmospheric Administration, Department of Commerce —
Tidal wetlands are recognized for their important role in carbon sequestration, as well as for their potential to become significant sources of greenhouse gas...
731 datasets found