Catalog - Data.gov

Animal Best Management Practice by Chesapeake Bay Watershed Region from 1985 to 2014

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 04:22 AM

This metadata record covers 18 comma delimited files that support the USGS Scientific Investigations Report Manure and Fertilizer Inputs to Land in the Chesapeake Bay Watershed, 1950-2014 by...

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Dataset of water boundaries intersected with MRB_RF1 reach flowlines

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 01:19 AM

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...

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Shapefile of Tennessee RF1 Catchments and Catchment Attributes

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 01:23 AM

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...

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Names of 10-digit hydrologic unit code (HUC10) watersheds in the state of Tennessee

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 01:24 AM

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...

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This dataset includes HUC8 and HUC10 codes associated with MRB reach IDs used in the Tennessee SPARROW model

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 01:33 AM

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...

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Ecoregion data (Ecoregion 71i) used as part of the input data set for the Tennessee SPARROW model

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 01:22 AM

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...

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Wet atmospheric nitrogen deposition data detrended to 2002

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 01:30 AM

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...

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Scenario calculator for Tennessee SPARROW nutrient models

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 12:07 AM

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed (SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...

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xml

Shapefile of stream reaches used in Tennessee SPARROW models

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 01:34 AM

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...

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xml

Tennessee SPARROW nutrient model archives

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 01:29 AM

This data release consists of the data used to develop SPAtially Referenced Regression On Watershed(SPARROW) attributes models for estimating loads of total phosphorus and total nitrogen in...

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SPARROW model inputs and simulated streamflow, nutrient and suspended sediment loads in streams of the Pacific Region of the United States, 2012 Base Year (Ver. 1.1, June 2020)

Organization: Department of the Interior
Updated: 20200827 | Harvested: July 18, 2025 at 12:17 AM

The U.S. Geological Survey's (USGS) SPAtially Referenced Regressions On Watershed attributes (SPARROW version 2_10) model was used to aid in the interpretation of monitoring data and simulate...

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Great Lakes Restoration Initiative Project 49 Fox River Basin 2016 and 2017 Data

Organization: Department of the Interior
Updated: 20220428 | Harvested: July 18, 2025 at 12:51 AM

The Fox River transports elevated loads of nitrogen and phosphorus to Lake Michigan. The increased concentration of N and P causes eutrophication of the lake, creating hypoxic zones and damaging...

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Water quality modeling results of total phosphorus for the lower Boise River near Parma, Idaho 2002 - 2021: U.S. Geological Survey data release

Organization: Department of the Interior
Updated: 20250328 | Harvested: July 23, 2025 at 06:47 PM

Three water-quality models were generated to estimate total phosphorus (TP) concentrations and loads from 2002 – 2021 in the Boise River near Parma, Idaho. A Weighted Regression on Time Discharge...

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SPARROW Model Simulated Nutrient and Suspended Sediment Loads in Streams when All Forests are Urbanized Across the Southeastern United States

Organization: Department of the Interior
Updated: 20210917 | Harvested: July 16, 2025 at 12:43 PM

The U.S. Geological Survey’s SPAtially Referenced Regression On Watershed attributes (SPARROW) for the Southeastern United States was used to simulate changes in total nitrogen, total phosphorus...

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Regression tree datasets used to identify trophic states in Tennessee reservoirs

Organization: Department of the Interior
Updated: 20211222 | Harvested: July 16, 2025 at 12:42 PM

This dataset was developed in partnership with the Tennessee Department of Environmental Conservation to determine the susceptibility of selected Tennessee reservoirs to eutrophication and...

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Data release: early warning indicators for harmful algal bloom assessments in the Illinois River, 2013 - 2020

Organization: Department of the Interior
Updated: 20240429 | Harvested: July 16, 2025 at 03:16 AM

Harmful algal blooms (HABs) have recently been observed in rivers, including the Illinois River in the Midwest United States. The Illinois River Basin has a history of eutrophication issues,...

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SPARROW model inputs and simulated streamflow, nutrient and suspended-sediment loads in streams of the Southeastern United States, 2012 Base Year

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 12:10 AM

The U.S. Geological Survey's (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was used to aid in the interpretation of monitoring data and simulate streamflow and...

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SPARROW model inputs and simulated streamflow, nutrient and suspended-sediment loads in streams of the Midwestern United States, 2012 Base Year

Organization: Department of the Interior
Updated: 20200827 | Harvested: July 18, 2025 at 01:07 AM

The U.S. Geological Survey’s (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was used to aid in the interpretation of monitoring data and simulate streamflow and...

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SPARROW model inputs and simulated streamflow, nutrient and suspended-sediment loads in streams of the Southwestern United States, 2012 Base Year

Organization: Department of the Interior
Updated: 20201028 | Harvested: July 16, 2025 at 02:24 PM

The U.S. Geological Survey's (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was used to aid in the interpretation of monitoring data and simulate streamflow and...

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SPARROW model inputs and simulated streamflow, nutrient and suspended-sediment loads in streams of the Northeastern United States, 2012 Base Year

Organization: Department of the Interior
Updated: 20200821 | Harvested: July 18, 2025 at 12:22 AM

The U.S. Geological Survey's (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was used to aid in the interpretation of monitoring data and simulate streamflow and...

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xml

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