727 datasets found
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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
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
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
2025 Estuarine Nutrient Enrichment Water Quality Monitoring Data Package
Department of the Interior —
Residential, agricultural, and urban expansion in the Northeast has resulted in an increase in anthropogenic nutrient loading to the region’s coastal zone. Estuaries... -
Federal
EPA ORD 2019 benthic survey of the Three Bays estuary, Barnstable, MA
U.S. Environmental Protection Agency —
Includes in-situ water quality measurements and sediment grab samples analyzed for grain size distribution, total organic carbon, and benthic macroinvertebrates... -
Federal
Side-Scan_Sonar backscatter tiles for Hudson River, NY (.xtf)
National Oceanic and Atmospheric Administration, Department of Commerce —
Raw XTF files. Sonar data were collected November 6 to December 15, 2009, in the estuary north from Saugerties to Troy. Data Collection and Processing: The... -
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
Copyright images from Digital Globe WorldView satellite
U.S. Environmental Protection Agency —
Copyright images from Digital Globe WorldView satellite. This dataset is not publicly accessible because: Copyright images from Digital Globe WorldView satellite. It... -
Federal
Hudson River Sub_Bottom Profile Data - Raw SEG-Y Files (*.sgy)
National Oceanic and Atmospheric Administration, Department of Commerce —
Hudson River Estuary Shallow Water Surveys. Subbottom data was collected November 5 to December 15, 2009, in the estuary north from Saugerties to Troy. Data... -
Federal
Datasets for Spatial and Temporal Variations of Estuarine Stratification and Flushing Time across the Continental U.S.
U.S. Environmental Protection Agency —
These datasets provide the raw and preprocessed data required to calculate estuarine stratification indices and estimates of flushing time for estuaries across the... -
Federal
NOAA National Estuarine Research Reserve (NERR) System-wide Monitoring Program (SWMP) Meteorological, Water Quality and Nutrient/Pigment Data from 1994 to 2024
National Oceanic and Atmospheric Administration, Department of Commerce —
The NOAA National Estuarine Research Reserve (NERR) System-wide Monitoring Program (SWMP) collects meteorological, water quality, and nutrient/pigment data on an... -
Federal
Shallow benthic habitats of San Francisco Bay, California CMECS geoform component
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset has been developed for the National Oceanic and Atmospheric Administration's (NOAA) Office for Coastal Management (OCM) as a collaborative and... -
Federal
Using Estuary Data to Teach about Coastal Impacts of Climate Change - NERRS/NSC(NERRS Science Collaborative)
National Oceanic and Atmospheric Administration, Department of Commerce —
The National Estuarine Research Reserve System has a proven track record of successfully transferring and translating reserve science to a broad suite of educators... -
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
Monterey Bay National Marine Sanctuary: Sanctuary Integrated Monitoring Network (SIMoN)
National Oceanic and Atmospheric Administration, Department of Commerce —
The Sanctuary Integrated Monitoring Network (SIMoN) is an integrated, long-term program that takes an ecosystem approach to identify and understand changes to the... -
Federal
Projections of compound floodwater depths for the lower Nooksack River and delta, western Washington State
Department of the Interior —
Computed flood depths associated with the combined influence of sea level position, tides, storm surge, and streamflow under existing conditions and projected future... -
Federal
Hydrologic Data Sites for Davis County, Utah
Department of the Interior —
This map shows the USGS (United States Geologic Survey), NWIS (National Water Inventory System) Hydrologic Data Sites for Davis County, Utah. The scope and purpose of... -
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
Grasslight_Data
U.S. Environmental Protection Agency —
Grasslight model simulations. This dataset is associated with the following publication: Lebrasse, M., B. Schaeffer, R. Zimmerman, V. Hill, M. Coffer, P. Whitman, W....
727 datasets found