Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Tidal Influence on Water Quality Parameters at Tributary Confluences of the Anacostia River, 2025 Tidal Influence on Water Quality Parameters at Tributary Confluences of the Anacostia River, 2025
This metadata record contains eight shapefiles with water quality parameters at the Anacostia River confluences of Hickey Run and Watts Branch, at Washington, DC, in 2025. Included in the dataset are water quality parameters (pH, turbidity, dissolved oxygen, specific conductance, and water temperature) and coordinates measured in these confluences by a remote-controlled autonomous boat...
Transient Electromagnetic Sounding Data from the Area Around the Dinero Mine Tunnel Near Leadville, Colorado Transient Electromagnetic Sounding Data from the Area Around the Dinero Mine Tunnel Near Leadville, Colorado
During August 2023, transient electromagnetic (TEM) surveys were carried out at select locations in Lake County near Leadville, Colorado upgradient from the Dinero tunnel bulkhead. TEM data were collected using an ABEM WalkTEM2 advanced instrument running acquisition software version 1.3.7.4 and using a single-turn transmitter loop (Tx) and a center-loop receiver (Rx). Tx loop dimensions...
Ground-Penetrating Radar for Depth to Bedrock in Select Watersheds near Los Planes in Southern Baja California Sur, Mexico Ground-Penetrating Radar for Depth to Bedrock in Select Watersheds near Los Planes in Southern Baja California Sur, Mexico
During December 2022 and April 2023, the U.S. Geological Survey, in cooperation with U.S. Water Partnership, collected ground-penetrating radar (GPR) data in select small subwatersheds and arroyos within the Los Planes watershed south of La Paz in southern Baja California Sur, Mexico to map the depth to bedrock for use as inputs to a groundwater flow model. This data release contains the...
Model Archive - Statistical analysis of the influence of conservation implementation on water quality during surface runoff events at edge-of-field monitoring sites located in the Laurentian Great Lakes Basin, 2012 to 2021 Model Archive - Statistical analysis of the influence of conservation implementation on water quality during surface runoff events at edge-of-field monitoring sites located in the Laurentian Great Lakes Basin, 2012 to 2021
This is an archive of model code used in statistical analysis of the influence of conservation implementation on water quality during surface runoff events at edge-of-field monitoring sites located in the Laurentian Great Lakes Basin, using data collected from 2012 to 2021. The workflow includes two types of analysis: 1) analysis of covariance (ANCOVA) for paired sites and 2) generalized...
Chloride Regression Model and Mass Balance for Different Deicing Salt Application Rates on Three Watersheds in Essex County, New York Chloride Regression Model and Mass Balance for Different Deicing Salt Application Rates on Three Watersheds in Essex County, New York
This data release contains tabular data for a regression model used to estimate daily mean chloride concentration from specific conductance, road salt application data, and mass balance data for a study of road salt runoff in Essex County, New York. Road salt application rates were provided by the New York State Department of Transportation (NYS DOT) and the Town of North Elba, NY. Data...
MODFLOW-NWT model used to simulate groundwater flow in Wake County, North Carolina, 2000 through 2070 MODFLOW-NWT model used to simulate groundwater flow in Wake County, North Carolina, 2000 through 2070
The U.S. Geological Survey (USGS) and Wake County Environmental Services developed a collaborative study to assess the hydrogeologic setting and groundwater flow conditions for Wake County, North Carolina. A groundwater-flow model was developed to conceptualize the fractured-rock aquifer system in Wake County and to assess historic and future groundwater resource availability. The...