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Passive Seismic Horizontal-to-Vertical Spectral Ratio Measurements at Transportation Infrastructure Sites in New Hampshire, 2022 Passive Seismic Horizontal-to-Vertical Spectral Ratio Measurements at Transportation Infrastructure Sites in New Hampshire, 2022
In 2022, the U.S. Geological Survey (USGS) in cooperation with the New Hampshire Department of Transportation (NHDOT) made 107 horizontal-to-vertical spectral ratio (HVSR) passive seismic geophysical measurements at four transportation infrastructure sites in New Hampshire to determine the benefits of HVSR as an enhancement to traditional geotechnical site characterizations performed by...
Data for depth of groundwater used for drinking-water supplies in the United States (ver. 2.0, January 2026) Data for depth of groundwater used for drinking-water supplies in the United States (ver. 2.0, January 2026)
This data release includes grids representing the depth and thickness of drinking-water withdrawal zones, polygons of hydrogeologic settings, an inventory of sources of well construction data, and summaries of data comparisons used to assess the depth of groundwater used for drinking-water supplies in the United States. Well construction data sources are documented in Table1_DataSources...
Los Angeles Basin Watershed Model (LABWM) using INFIL4.0 Los Angeles Basin Watershed Model (LABWM) using INFIL4.0
This data release documents the datasets and procedures used to update the Los Angeles Basin Watershed Model (LABWM) (Hevesi and Johnson, 2016) from INFIL3.0 (USGS, 2008a, 2008b) to INFIL4.0. The LABWM provides gridded monthly infiltration, evaporation, recharge, and runoff estimates for the Los Angeles region using the water balance recharge model, INFIL. INFIL is a grid-based...
Salinas Valley Hydrologic System: Regional Climate Data (ver 2.0, February 2025) Salinas Valley Hydrologic System: Regional Climate Data (ver 2.0, February 2025)
This digital dataset contains the climate data used for the Salinas Valley Hydrologic System, including the Salinas Valley Watershed Model (SVWM) and the Lower Salinas Valley Hydrologic Models (Salinas Valley Integrated Hydrologic Model (SVIHM) and Salinas Valley Operational Model (SVOM)). The climate data include spatially distributed daily precipitation, maximum and minimum air...
Salinas Valley Operational Model: Input Operational Data (ver. 2.0, September 2023) Salinas Valley Operational Model: Input Operational Data (ver. 2.0, September 2023)
This digital dataset contains the surface water operational data used for the Salinas Valley Operational Model (SVOM) including the timeseries data and the operational rules. While much of the input data is shared between the Salinas Valley Operational Model (SVOM) and the Salinas Valley Integrated Hydrologic Model (SVIHM), the SVOM has additional input data specific to the purpose and...
Passive flux meter data from monitoring wells and sentinel wells in relation to the Kirtland Air Force Base Bulk Fuels Facility, Albuquerque, New Mexico Passive flux meter data from monitoring wells and sentinel wells in relation to the Kirtland Air Force Base Bulk Fuels Facility, Albuquerque, New Mexico
This U.S. Geological Survey (USGS) data release contains push-pull test results, Darcy velocity data, and contaminant mass flux data measured in Albuquerque, New Mexico, using passive flux meters (PFMs) in monitoring and sentinel wells associated with the Kirtland Air Force Base (KAFB) Bulk Fuels Facility (BFF). Push-pull test results were used to correct Darcy velocity data collected at...