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Estimated Densities of Residential Septic Tanks across the Conterminous United States for HUC12, NHDV2 Catchment, and Block Group Scales Estimated Densities of Residential Septic Tanks across the Conterminous United States for HUC12, NHDV2 Catchment, and Block Group Scales
This dataset provides estimates of residential septic tank densities at 12-digit Hydrologic Unit Code (HUC12), National Hydrography Dataset (NHD Plus version 2.1, 1:100k scale) catchment, and 2020 Census Block Group (version 2021) scale for the conterminous United States. Using United States Legacy Census data from the 1990s and the land use classification from the National Land Cover...
Loch Vale Watershed hydroclimate and isotopes of tree-ring cellulose and source-water isotope model Loch Vale Watershed hydroclimate and isotopes of tree-ring cellulose and source-water isotope model
Stable isotopes of water preserved in geologic archives, primarily as oxygen (d18O), have proven critical for documenting Earth’s climatic and hydrologic systems past and present. However, timescale differences of water isotope inputs to proxy systems and the signal embedded in long paleorecords often confound translation to observed hydroclimatic metrics. Here, a unique 20-year dataset...
Lake Michigan Gillnet Lake Trout Assessment 1998-2003 Lake Michigan Gillnet Lake Trout Assessment 1998-2003
Annual spring (May) and fall (late October through early November) gillnet assessment surveys were conducted by researchers at the USGS Great Lakes Science Center (GLSC) in northern Lake Michigan, including the Northern Refuge, between 1998-2023. Total length, weight, sex, maturity, and sea lamprey wounds were recorded for each lake trout and burbot caught in the gill nets. Lake trout...
Petrogenic organic carbon estimates for two Rocky Mountain soils underlain by Cretaceous Mancos Shale Petrogenic organic carbon estimates for two Rocky Mountain soils underlain by Cretaceous Mancos Shale
This dataset contains sample collection details, analytical measurements of carbon content, and estimated petrogenic carbon contents of soil samples and shale samples collected from two locations in the Colorado Rocky Mountains.
Lake Erie Fish Community Data, 2013-2023 Lake Erie Fish Community Data, 2013-2023
Assessing the distribution and abundance of both predator and prey (forage) fish species is a cornerstone of ecosystem-based fishery management and supports decision making that considers food-web interactions. In support of binational Great Lakes fishery management, the objectives of this survey were to: provide estimates of densities of key forage and predator species in the western...
Total organic carbon, programmed temperature pyrolysis, vitrinite reflectance, organic carbon isotopes, elemental, and spectral gamma-ray data from the Cretaceous Hue Shale (Jago River outcrop), Arctic Alaska, USA Total organic carbon, programmed temperature pyrolysis, vitrinite reflectance, organic carbon isotopes, elemental, and spectral gamma-ray data from the Cretaceous Hue Shale (Jago River outcrop), Arctic Alaska, USA
Chemostratigraphic signatures were recorded in a 113 m thick outcrop of late Albian to early Campanian (~103–82 Ma) Hue Shale exposed on the bank of the Jago River in the coastal plain (“1002 Area”) of the Arctic National Wildlife Refuge (ANWR), Alaska. Spectral gamma-ray (SGR) data was collected in situ across the Jago River section. A total of 250 samples consisting of predominantly...
Monthly ensemble outputs from the National Hydrologic Model Precipitation-Runoff Modeling System and the Weather Research and Forecasting model hydrologic modeling system for the conterminous United States, Alaska, Hawaii, and Puerto Rico for water years Monthly ensemble outputs from the National Hydrologic Model Precipitation-Runoff Modeling System and the Weather Research and Forecasting model hydrologic modeling system for the conterminous United States, Alaska, Hawaii, and Puerto Rico for water years
The Integrated Water Availability Assessment uses an ensemble of outputs from two hydrologic models to assess water supply conditions. Results from the two models, the National Hydrologic Model Precipitation-Runoff Modeling System (NHM-PRMS) and Weather Research and Forecasting model hydrologic modeling system (WRF-Hydro) were averaged to create a single model ensemble. A unique instance...
Exposure to surface water supply and use imbalance during spawning months for 214 fish taxa across the conterminous United States Exposure to surface water supply and use imbalance during spawning months for 214 fish taxa across the conterminous United States
This data release contains the output from an ecological analysis modeling the exposure of 214 fish taxa across the conterminous US (CONUS) to an index of surface water supply and use imbalances (SUI), a metric of monthly gross average water supply available after accounting for climate variation and consumptive use, during their spawning months, hereafter referred to as spawning...
Effect of ultrasonic deterrents and curtailment on bat mortality at an Ohio wind energy facility Effect of ultrasonic deterrents and curtailment on bat mortality at an Ohio wind energy facility
Wind energy is important for achieving net-zero greenhouse gas emissions but also contributes to global bat mortality. Current strategies to minimize bat mortality due to collision with wind-turbine blades fall broadly into two categories: curtailment (limiting turbine operation during high-risk periods) and deterrence (discouraging bat activity near turbines). Recently, there has been...
Biogeochemical Data from Field Samples and Laboratory Experiments, Boulder Creek Watershed, Colorado (2019-2023) Biogeochemical Data from Field Samples and Laboratory Experiments, Boulder Creek Watershed, Colorado (2019-2023)
Biogeochemical processes are key drivers of chemical solubility and mobilization. Understanding these processes will lead to improved predictive capabilities and may aid with watershed management decisions. This data release presents results from the Boulder Creek, Colorado watershed, including analyses of water and sediment. From April to August 2019, water samples were collected weekly...
Depth predictions of chemical geothermometers estimated using a three-dimensonal temperature model in the Great Basin, USA Depth predictions of chemical geothermometers estimated using a three-dimensonal temperature model in the Great Basin, USA
Recent work in the Great Basin region of the western United States has made it possible to predict the depth of hydrothermal reservoirs (i.e., the depth at which heat is accumulated prior to ascent via hydrothermal upflow) identified through geochemistry and to contextualize the spatial patterns of these reservoir depths. Chemical geothermometers use the chemical and mineral constituents...
Inorganic and organic chemical composition of groundwater collected from monitoring wells located at the National Crude Oil Spill Fate and Natural Attenuation Research Site, Bemidji, Minnesota, USA 2009-2023 Inorganic and organic chemical composition of groundwater collected from monitoring wells located at the National Crude Oil Spill Fate and Natural Attenuation Research Site, Bemidji, Minnesota, USA 2009-2023
This dataset contains information from groundwater monitoring wells at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, USA. The information includes field and laboratory methods, site locations, and inorganic and organic chemistry data. Samples were collected between 2009 and 2023, and analyzed for inorganic anions: F (fluoride), Cl...