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#1 Federal

Water-quality and streamflow datasets used in the Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2012 (input)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 03:42 AM

#2 Federal

Datasets used to evaluate the effects of antecedent streamflow and sample timing on trend assessments of fish, invertebrate and diatom communities across the United States, 2002-12 (input)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

Detecting trends in biological attributes is central to many stream monitoring programs; however, understanding how natural variability in environmental factors affects trend results is not well...

xml
xml

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 01, 2026 at 05:04 AM

#3 Federal

Water-quality and streamflow datasets used in Seasonal Kendall trend tests for the Nation’s rivers and streams, 1972-2012 (input)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 01, 2026 at 04:45 AM

#4 Federal

Daily streamflow datasets used to analyze trends in streamflow at sites also analyzed for trends in water quality and ecological condition in the Nation's rivers and streams (input)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 04:47 AM

#5 Federal

Datasets used to evaluate the effects of antecedent streamflow and sample timing on trend assessments of fish, invertebrate and diatom communities across the United States, 2002-12 (output)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

Detecting trends in biological attributes is central to many stream monitoring programs; however, understanding how natural variability in environmental factors affects trend results is not well...

xml
xml

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 03:01 AM

#6 Federal

Water-quality and streamflow datasets used in the Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2012(output)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 06:11 AM

#7 Federal

Daily streamflow datasets used to analyze trends in streamflow at sites also analyzed for trends in water quality and ecological condition in the Nation's rivers and streams (output)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 04:49 AM

#8 Federal

Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 (input)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 04:45 AM

#9 Federal

Water-quality and streamflow datasets used in Seasonal Kendall trend tests for the Nation’s rivers and streams, 1972-2012 (output)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 05:37 AM

#10 Federal

Ecological community datasets used to evaluate the presence of trends in ecological communities in selected rivers and streams across the United States, 1992-2012 (input)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 05:42 AM

#11 Federal

Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 (output)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 03:48 AM

#12 Federal

Ecological community datasets used to evaluate the presence of trends in ecological communities in selected rivers and streams across the United States, 1992-2012 (output)

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

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 of the National...

xml
xml

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 04:14 AM

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Water-quality and streamflow datasets used in the Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2012 (input)

Datasets used to evaluate the effects of antecedent streamflow and sample timing on trend assessments of fish, invertebrate and diatom communities across the United States, 2002-12 (input)

Water-quality and streamflow datasets used in Seasonal Kendall trend tests for the Nation’s rivers and streams, 1972-2012 (input)

Daily streamflow datasets used to analyze trends in streamflow at sites also analyzed for trends in water quality and ecological condition in the Nation's rivers and streams (input)

Datasets used to evaluate the effects of antecedent streamflow and sample timing on trend assessments of fish, invertebrate and diatom communities across the United States, 2002-12 (output)

Water-quality and streamflow datasets used in the Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2012(output)

Daily streamflow datasets used to analyze trends in streamflow at sites also analyzed for trends in water quality and ecological condition in the Nation's rivers and streams (output)

Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 (input)

Water-quality and streamflow datasets used in Seasonal Kendall trend tests for the Nation’s rivers and streams, 1972-2012 (output)

Ecological community datasets used to evaluate the presence of trends in ecological communities in selected rivers and streams across the United States, 1992-2012 (input)

Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 (output)

Ecological community datasets used to evaluate the presence of trends in ecological communities in selected rivers and streams across the United States, 1992-2012 (output)