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Age-model codes and paleoearthquake ages for the Frazier Mountain, Pallett Creek, and Wrightwood paleoseismic sites along the Southern San Andreas Fault, California Age-model codes and paleoearthquake ages for the Frazier Mountain, Pallett Creek, and Wrightwood paleoseismic sites along the Southern San Andreas Fault, California
These datasets provide age-model codes and resultant paleoearthquake age distributions for three paleoseismic sites along the southern San Andreas Fault. The code format is compatible with the age-model program OxCal (Bronk Ramsey 2009) which calibrates radiocarbon dates to calendar years and uses stratigraphic relationships among radiocarbon samples and sedimentary units to compute...
Uranium and amino acid geochronology data for marine terraces around San Luis Obispo Bay, central California, USA Uranium and amino acid geochronology data for marine terraces around San Luis Obispo Bay, central California, USA
In the San Luis Obispo Bay area of central California, interpretations of marine terrace ages have been hampered by inconsistent results from geochronological indicators (U-series ages of corals and correlations using amino acid racemization of mollusks) and seemingly contradictory paleozoogeographic aspects of fossil faunal assemblages. The two lowest-elevation terraces are Q1 (lower)...
Mean of Annual Total Surface Water Proportions from 2015 through 2024, Derived from Dynamic Surface Water Extent and Resampled to Sentinel-2 grid for the contiguous United States Mean of Annual Total Surface Water Proportions from 2015 through 2024, Derived from Dynamic Surface Water Extent and Resampled to Sentinel-2 grid for the contiguous United States
Dynamic Surface Water Extent (DSWE) annual proportions of total surface water processed to the continental US Analysis Ready Data (ARD) tile scheme (https://landsat.usgs.gov/ard_tile) in Sarbanes and Jones 2025 are here resampled to the 20 m Sentinel-2 satellite grid using bilinear interpolation with a 3 by 3 pixel moving window. The resulting 973 tiles, with values ranging from 0 to 100...
High-resolution digital surface model (DSM) and true-color image orthomosaic collected by Uncrewed Aircraft System (UAS) within the Los Planes Watershed, Baja California Sur, Mexico, 2024 High-resolution digital surface model (DSM) and true-color image orthomosaic collected by Uncrewed Aircraft System (UAS) within the Los Planes Watershed, Baja California Sur, Mexico, 2024
These data are structure from motion products from UAS providing high topographical and true-color imagery detail over a subregion within the Los Planes Watershed in La Paz, Mexico. This is part of an ongoing research partnership with the U.S. Geological Survey (Aridland Water Harvesting Study), U.S. Water Partnership (USWP), and Innovaciones Alumbra to monitor eco-hydrological feedbacks...
USGS National and Global Oil and Gas Assessment Project-Southwestern Wyoming Province, Mesaverde Group and Lance Formation Conventional and Continuous Assessment Unit Boundaries, Assessment Input Data, and Fact Sheet Data Tables USGS National and Global Oil and Gas Assessment Project-Southwestern Wyoming Province, Mesaverde Group and Lance Formation Conventional and Continuous Assessment Unit Boundaries, Assessment Input Data, and Fact Sheet Data Tables
This data release contains the boundaries of assessment units and input data for the assessment of undiscovered oil and gas resources in the Mesaverde Group and Lance Formation in the Southwestern Wyoming Province, Wyoming, Utah, and Colorado. The assessment unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The...
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...
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 6 Models Used to Simulate Groundwater Flow and Nitrogen Transport in the Long Island Sound Watershed on Long Island, New York MODFLOW 6 Models Used to Simulate Groundwater Flow and Nitrogen Transport in the Long Island Sound Watershed on Long Island, New York
This model application data release documents coupled transient and steady-state regional and inset numerical models of the Long Island aquifer system to simulate groundwater flow and nitrogen transport using the US Geological Survey groundwater modeling software MODFLOW 6 (Langevin and others, 2017 and 2022). The regional model domain encompasses all of Long Island, New York, while the...
Simulations of Groundwater Nitrogen Transport in the Long Island, New York Aquifer System under Potential Nitrogen Management Scenarios Simulations of Groundwater Nitrogen Transport in the Long Island, New York Aquifer System under Potential Nitrogen Management Scenarios
This data release contains simulation results from twenty-three (23) transient inset numerical models of the eastern part of Long Island, New York that includes the Peconic River, and estuaries around the North and South Fork. The models simulate nitrogen concentrations in the aquifer and nitrogen loads to surface water bodies from 2020-2120 under different nitrogen inputs that represent...
MODFLOW 6 and MODPATH 7 Models for Simulating Groundwater Flow and Nitrogen Transport in the Long Island, New York Aquifer System MODFLOW 6 and MODPATH 7 Models for Simulating Groundwater Flow and Nitrogen Transport in the Long Island, New York Aquifer System
This groundwater model archive documents transient and steady-state regional and inset numerical models of the Long Island aquifer system that simulate groundwater flow and nitrogen transport for the period 1900-2019 using the US Geological Survey groundwater modeling software MODFLOW 6 (Langvin and others, 2017 and 2022). The development and calibration of the regional groundwater flow...