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Chesapeake Bay non-tidal network shapefiles for selected watershed boundaries
This metadata report documents a shapefile of watershed boundaries for 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake... -
Datasets for estimating invertebrate response to changes in total nitrogen,...
These data were used to describe a possible approach to estimate changes in invertebrate taxa richness at sites across the United States with known water-quality trends but no... -
Estimates of inorganic nitrogen deposition from precipitation for selected...
This dataset contains estimates of the yearly sum of nitrogen atmospheric deposition of inorganic nitrogen in selected Chesapeake Bay watersheds from 1985-2012. Data for... -
National Capital Region Network Biological Stream Survey Macroinvertebrate Data
Macroinvertebrate and water chemistry data collected as part of the NCRN Biological Stream Monitoring Proocol. All data were collected during the Spring sampling season. In... -
Nitrogen and phosphorus from fertilizer and manure for selected Chesapeake...
This dataset contains estimates of the yearly sum of total nitrogen and total phosphorus (hereafter referred to as nitrogen and phosphorus) inputs from fertilizer applications... -
Lake Lanier Carbon, Nitrogen, totals and stable isotopes
Total carbon and nitrogen concentrations, and delta carbon-13 and delta nitrogen-15 stable isotope ratios, were determined in sediment samples to potentially identify the... -
Water-quality trends for rivers and streams in the Delaware River Basin...
The datasets provided here are the input data used to run the Seasonal Kendall Trend (SKT) tests and Weighted Regressions on Time, Discharge, and Season (WRTDS) models. SKT... -
Nutrient loading, flushing rate, and lake morphometry data used to identify...
For State agencies and other water-resources managers, determining which waterbodies to allocate limited funds for protection and restoration while also maximizing cost benefit... -
Chesapeake Bay non-tidal network shapefiles for selected station locations
This metadata report documents a shapefile of 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake Bay non-tidal network (NTN). -
Data and rloadest models for daily total nitrogen load for the School Branch...
Total Nitrogen (TN) rloadest models were developed to compute TN flux at School Branch at three USGS monitoring stations: School Branch at Maloney Road near Brownsburg, Indiana... -
Water-quality trends for rivers and streams in the Delaware River Basin...
The datasets provided here are the output from the Seasonal Kendall Trend (SKT) test and Weighted Regressions on Time, Discharge, and Season (WRTDS) model that characterize... -
Adirondack New York soil chemistry data, 1997-2014
This dataset contains measurements of chemical concentrations of forest soil samples and associated site measurements collected in the Adirondack Ecoregion of New York State.... -
SPARROW model simulated nutrient loads in streams of the Midcontinental...
The U.S. Geological Survey’s (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was developed to aid in the interpretation of monitoring data and... -
Nitrogen and phosphorus from fertilizer and manure for selected Chesapeake...
This dataset contains estimates of the yearly sum of total nitrogen and total phosphorus (hereafter referred to as nitrogen and phosphorus) inputs from fertilizer applications... -
Long-term mean annual total nitrogen and total phosphorus loads estimated...
This USGS data release contains long-term mean annual total nitrogen and total phosphorus load estimates, and the model coefficients used to obtain the load estimates, for... -
National Lakes Assessment 2022 Datafiles for Report " National Lakes...
The National Lakes Assessment (NLA) is a statistical survey of the condition of our nation's lakes, ponds, and reservoirs. It is designed to provide information on the extent of... -
Datasets of Streamflow, Nutrient Concentrations, Loads and Trends for the...
This dataset utilized available water-quality data from the Mississippi Department of Environmental Quality and streamflow from the U.S. Geological Survey to estimate total... -
Water-quality and streamflow datasets used in Weighted Regressions on Time,...
In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project.... -
Datasets for estimating invertebrate response to changes in total nitrogen,...
These data were used to describe a possible approach to estimate changes in invertebrate taxa richness at sites across the United States with known water-quality trends but no...