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Streamflow input datasets and model results using the Weighted Regressions on Time, Discharge, and Season (WRTDS) Models to estimate total organic carbon and other constituent concentrations in eight rivers in Connecticut, water years 1973 to 2019

Organization: Department of the Interior
Updated: 20210209 | Harvested: July 16, 2025 at 02:27 PM

This data release provides data in support of an assessment of changes in slope of the concentration discharge relation for total organic carbon in eight major rivers at gaging stations in...

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Data on Nitrogen Concentrations and Loads for the Connecticut River at Middle Haddam, Connecticut, Computed with the Use of Auto-Sampling and Continuous Measurements of Water Quality, 2008-2014

Organization: Department of the Interior
Updated: 20200825 | Harvested: July 18, 2025 at 03:57 AM

This U.S. Geological Survey data release presents tabular daily data on nitrate plus nitrite nitrogen and total nitrogen loads for the Connecticut River at Middle Haddam, Connecticut, from...

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Phytoplankton data for samples collected at eleven large river sites throughout the United States, June through October 2018

Organization: Department of the Interior
Updated: 20210924 | Harvested: July 16, 2025 at 02:03 PM

This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from eleven large river sites throughout the United States, from June through October 2018. All...

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Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at twelve large river sites throughout the United States, June through October 2019

Organization: Department of the Interior
Updated: 20221123 | Harvested: July 16, 2025 at 10:23 AM

This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from twelve large river sites...

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Phytoplankton data for samples collected at eleven large river sites throughout the United States, June through September 2017

Organization: Department of the Interior
Updated: 20200820 | Harvested: July 18, 2025 at 01:29 AM

This U.S. Geological Survey (USGS) Data Release provides phytoplankton data for samples collected from eleven large river sites throughout the United States, from June through September 2017. All...

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Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at eleven large river sites throughout the United States, June through September 2017

Organization: Department of the Interior
Updated: 20200820 | Harvested: July 18, 2025 at 01:22 AM

This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from eleven large river sites...

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Phytoplankton tally sheet, including photomicrographs, for samples collected at eleven large river sites throughout the United States, June through September 2017

Organization: Department of the Interior
Updated: 20230710 | Harvested: July 18, 2025 at 01:25 AM

This U.S. Geological Survey (USGS) Data Release provides the phytoplankton tally sheet, including photomicrographs, for samples collected from eleven large river sites throughout the United...

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Cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected at eleven large river sites throughout the United States, June through October 2018

Organization: Department of the Interior
Updated: 20210924 | Harvested: July 16, 2025 at 02:05 PM

This U.S. Geological Survey (USGS) data release provides discretely measured cyanotoxin, chlorophyll-a, and cyanobacterial toxin genetic data for samples collected from eleven large river sites...

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