706 datasets found
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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
Benthic grab data from June 1995 in the Lower Bay of New York/New Jersey Harbor
National Oceanic and Atmospheric Administration, Department of Commerce —
Benthic grab samples were collected using a Shipek grab at pre-determined locations in the harbor. Taxonomic enumerations and biological community parameters were... -
Federal
Continuous Water Quality Monitoring Dataset from Tillamook Bay, OR; 2017-2023
U.S. Environmental Protection Agency —
Tillamook Estuary, OR continuous water quality monitoring dataset: 2017-2023 -
Federal
U.S.-Mexico Border Program Project Points, 2020, U.S.-Mexico Border, U.S. Environmental Protection Agency
U.S. Environmental Protection Agency —
This point layer represents 112 projects funded through the U.S.-Mexico Border Program (2013-2020) in both Region 9 and Region 6 of the U.S. EPA to include U.S.... -
Federal
US estuaries
U.S. Environmental Protection Agency —
GIS Shapefile with distance to shore and window width calculated for each US estuary and subestuary. This dataset is associated with the following publication:... -
Federal
EnviroAtlas National Layers Master Web Service
U.S. Environmental Protection Agency —
This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). This web service includes... -
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
Estuarine Nutrient Enrichment Tier-3 Seagrass Monitoring Data for Cape Cod National Seashore though 2021 (Certified)
Department of the Interior —
As part of the Northeast Coastal and Barrier Network's Estuarine Nutrient Enrichment Monitoring program, Network staff and cooperators continued to monitor seagrass... -
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
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
Estuarine Habitat and Juvenile Dungeness Crab Data (2010-2011)
U.S. Environmental Protection Agency —
This dataset contains juvenile Dungeness crab (Cancer magister) abundance data and associated habitat data from three estuaries in Oregon (Tillamook, Yaquina, and... -
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
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
Wave power on marsh units in Connecticut salt marshes
Department of the Interior —
This data release contains coastal wetland synthesis products for the state of Connecticut. Metrics for resiliency, including the unvegetated to vegetated ratio... -
Federal
Water quality and seagrass datasets for Estuarine Nutrient Enrichment Monitoring Data Analysis—Trend Analysis for Northeast Coastal and Barrier (NCBN) I&M Network Parks
Department of the Interior —
Tabular datasets in text format (.CSV) containing data on water quality (discrete and continuous) and seagrass extent and health. -
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...
706 datasets found