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#1 Federal

Water-quality and streamflow datasets used in Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2017

Organization: Department of the Interior
Dataset Last Updated: December 02, 2021 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. One of the major...

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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 05:53 AM

#2 Federal

Ecological Marine Units: Water Quality

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: April 30, 2026 at 12:00 AM

A compilation of ocean water quality (temperature, salinity, and dissolved oxygen) data at ¼ degree spatial resolution for the entire United States Exclusive Economic Zone. The dataset is derived...

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 02, 2026 at 11:46 PM

#3 Federal

Water-quality trends for rivers and streams in the Delaware River Basin using Weighted Regressions on Time, Discharge, and Season (WRTDS) models, Seasonal Kendall Trend (SKT) tests, and multisource data, Water Year 1978-2018.

Organization: Department of the Interior
Dataset Last Updated: December 03, 2020 at 12:00 AM

This data release provides water-quality trends for rivers and streams in the Delaware River Basin determined using the Weighted Regressions on Time, Discharge, and Season (WRTDS) model and the...

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Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 03:04 AM

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Water-quality and streamflow datasets used in Weighted Regressions on Time, Discharge, and Season (WRTDS) models to determine trends in the Nation’s rivers and streams, 1972-2017

Ecological Marine Units: Water Quality

Water-quality trends for rivers and streams in the Delaware River Basin using Weighted Regressions on Time, Discharge, and Season (WRTDS) models, Seasonal Kendall Trend (SKT) tests, and multisource data, Water Year 1978-2018.