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This dataset shows the temporal frequency and spatial extent of cyanobacteria cells in large, freshwater lakes and reservoirs across the continental United States derived from 300x300 meter MEdium...
Search relevance: 1.00 | Views last month: 89 | Catalog Last Checked: August 03, 2026 at 04:16 AM -
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 surface water drainage...
Search relevance: 1.00 | Views last month: 49 | Catalog Last Checked: September 10, 2026 at 09:17 PM -
The NOAA National Estuarine Research Reserve (NERR) System-wide Monitoring Program (SWMP) collects meteorological, water quality, and nutrient/pigment data on an ongoing basis. Meteorological...
Search relevance: 1.00 | Views last month: 18 | Catalog Last Checked: August 28, 2026 at 12:04 AM -
The CAGES program (Comparative Assessment of Gulf Estuarine Systems) is designed to examine the differences between estuarine ecosystems and investigate why some are more productive than others....
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: July 31, 2026 at 10:25 PM -
This data release contains coastal wetland synthesis products for Massachusetts, developed in collaboration with the Massachusetts Office of Coastal Zone Management. Metrics for resiliency,...
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This web feature service contains location and facility identification information from EPA's Facility Registry Service (FRS) for the subset of facilities that link to the the National Pollutant...
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This map shows the USGS (United States Geologic Survey), NWIS (National Water Inventory System) Hydrologic Data Sites for Uintah County, Utah. The scope and purpose of NWIS is defined on the...
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A survey of sediment toxicity was carried out by NOAA's National Status and Trends Program in the coastal bays that surround Long Island Sound in New York and Connecticut. The survey objectives...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: August 02, 2026 at 04:58 PM -
There are five datasets included in this collection. One dataset (SiteInventoryunique.shp) provides metadata for sampling stations associated with estuarine water quality data focused on...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: September 10, 2026 at 07:00 PM -
This GIS layer provides the location where samples were taken in a survey conducted by H.L. Sanders (1956)
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: September 10, 2026 at 09:20 PM -
The purpose of CAGES (Comparative Assessment of Gulf Estuarine Systems) is to compile the fishery independent data from five Gulf States into a database to more easily compare the fisheries across...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: August 27, 2026 at 08:00 PM -
This project assesses chemical contaminant status in sediment and coral tissues (Porites astroides) collected in and around Guanica Bay, Puerto Rico in 2009. Parameters monitored include sediment...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: August 01, 2026 at 07:33 AM -
USGS, HUDSON RIVER AT 01376307.
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: August 26, 2026 at 08:35 AM -
This USGS data release contains daily-timestep and monthly-timestep estimates of baseflow at 49 reference stream gages located within 25 miles of the Delaware River basin watershed boundary....
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: September 10, 2026 at 08:41 PM -
The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated datset of geospatial data layers, including the most current National Hydrography Dataset (NHD),...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: September 10, 2026 at 08:47 PM -
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 summary information for each...
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This study was based on the sediment quality triad (SQT) approach. A stratified probabilistic sampling design was utilized to characterize the Chesapeake Bay system in terms of chemical...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: August 02, 2026 at 04:57 PM -
GIS Shapefile with distance to shore and window width calculated for each US estuary and subestuary. This dataset is associated with the following publication: Schaeffer, B., and M. Myer....
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: September 10, 2026 at 06:56 PM -
In response to the growing concerns among Native communities about the safety of subsistence shellfish, this project assessed the health risks associated with consuming softshell clams, mussels...
Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: August 02, 2026 at 05:02 PM -
This U.S. Geological Survey data release contains datasets that combine past data with future projections of nitrogen sources and nitrogen export to the Chesapeake Bay watershed for the years...
Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: September 10, 2026 at 08:46 PM
