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Laboratory experiment data—turbidity response to increasing silt and clay concentration These data were compiled during a laboratory experiment showing the turbidity response to increasing silt and clay concentration. The sediment used for the laboratory experiment was collected in the Grand Canyon study area, from the bank of the Little Colorado River, approximately 1 kilometer upstream from its confluence with the Colorado River. The sediment was passed through a 63 µm sieve to isolate the silt-and-clay-size fraction. The silt and clay was completely dried in an oven (at 105 degrees Celsius for 12 hours), weighed, mechanically disaggregated, and added in stages to a measured volume of water to calculate concentration. The sediment was kept in suspension with an electric stirrer and turbidity was... Tags: Arizona, Colorado River, Grand Canyon, Information Sciences, Little Colorado River, All tags... Marble Canyon, USGS Science Data Catalog (SDC), Water Quality, Water Resources, clay concentration, false low turbidity, laboratory experiment data, linear response, maximum recording level, maximum response, negative response, silt concentration, turbidity, Fewer tags The timing of dabbling duckling hatch, nest departure and depredation in Suisun Marsh, California from 2015-2017 These data include a row for each duck nest equipped with a small video camera. We present the location of the nest, the timing of the start of hatch, the timing of the end of hatch, and the timing of the departure of the hen and ducklings from the nest. Additionally, this table includes any predators that were observed at the nest depredating eggs prior to hatch and any predators that were observed at the nest between hatch and departure from the nest. These data support the following publication: "Sitting ducklings: Timing of hatch, nest departure, and predation risk for dabbling duck broods" by Sarah H. Peterson, Joshua T. Ackerman, Mark P. Herzog, C. Alex Hartman, Rebecca Croston, Cliff L. Feldheim, and Michael... Categories: Data; Tags: Grizzly Island Wildlife Area, Mareca strepera, Suisun Marsh, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... biota, imprinting, nest depredation, nest exodus, predation, waterfowl, Fewer tags Conservation easements in the Prairie Pothole Region of North Dakota: characteristics of wetland catchments and key factors for determination of drainage setback distances This data release includes characteristics of wetland catchments associated with U.S. Fish and Wildlife conservation easement lands located in the Prairie Pothole Region of North Dakota. Characteristics include wetland catchment areas, slope length, land use, soil mapping unit, and slope grades of representative soils. County and ecoregion also are included. Summary data pertaining to lateral setback distances, or drainage setbacks, also are presented by county and soil mapping unit for a range of subsurface drainage system characteristics (i.e., drain pipe depth and diameter). Additionally, calculated variables used for data analyses and presentation in the manuscript associated with this data release are included. Categories: Data; Tags: North Dakota, USGS Science Data Catalog (SDC), conservation easements, environment, hydrology, All tags... inlandWaters, lateral effect distance, subsurface drainage systems, wetland ecosystems, Fewer tags Western Spadefoot Habitat Selection Based on Radio Telemetry in Orange County, California 2019 We conducted a radio telemetry study of adult western spadefoots (Spea hammondii) at 2 sites in southern California to characterize their survival, behavior, and movements from breeding through aestivation to inform conservation and management for the species. These data support the following publication: Halstead, B.J., Baumberger, K.L., Backlin, A.R., Kleeman, P.M., Wong, M.N., Gallegos, E.A., Rose, J.P., and Fisher, R.N., 2021. Conservation implications of spatiotemporal variation in the terrestrial ecology of an ephemeral pool-breeding amphibian. The Journal of Wildlife Management. Categories: Data; Tags: California, Orange County, Southern California, Spea hammondii, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, activity, amphibians, anuran, biota, ecology, environment, habitat selection, home range, movement, survival, western spadefoot, Fewer tags MODFLOW-NWT Model Used to Evaluate Stream Capture Related to Groundwater Pumping, Lower Humboldt River Basin, Nevada (ver. 1.1, March 2024) A three-dimensional groundwater flow model using MODFLOW-NWT was developed to evaluate historical and potential stream capture in the lower Humboldt River Basin, Nevada. The Humboldt River Basin is the only river basin that is contained entirely within the state of Nevada. The effect of groundwater pumping on the Humboldt River is not well understood. Tools are needed to determine stream capture and manage groundwater pumping in the Humboldt River Basin. Previous work has demonstrated that the river’s surface-water resource is sensitive to groundwater withdrawals, which have steadily increased since the 1950s for agriculture, municipal, and mining uses. A numerical groundwater flow model was developed for the purpose... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Capture, Groundwater Model, Humboldt River Basin watershed, Hydrology, InlandWaters, All tags... Lovelock, MODFLOW-NWT, Nevada, Pershing County, Stream Capture, Streamflow Depletion, USGS Science Data Catalog (SDC), Water Resources, environment, geoscientificInformation, groundwater, inlandWaters, lower Humboldt River Basin aquifer system, usgsgroundwatermodel, Fewer tags Delaware River Basin Catchments Based on Strahler Stream Order 1 from National Hydrography Dataset (NHD) Stream Centerline Features for 8-digit HUC In 2012, catchments were generated in the Delaware River Basin for 8-digit HUCs in the areas underlain by the Marcellus Shale (all of 02040101, 02040102, 02040103, 02040104; and headwater areas of 02040106 and 02040203) based on the National Hydrography Dataset (NHD) Strahler first- and second-order streams. There were areas that did not have a catchment generated so another methodology needed to be used in an attempt to fill in the 'gap areas'. A 900-cell, flow accumulation raster generated for the Pennsylvania StreamStats application was used as a surrogate stream layer with the same Strahler ordering system applied to help fill in the 'gap areas'. Points were manually placed at the downstream end of the Strahler... Tags: Catchment, Delaware River Basin, Headwater, Marcellus, NHD, All tags... Strahler, USGS Science Data Catalog (SDC), Fewer tags Laboratory Assessment of Colloidal Borescope and Heat-Pulse Flowmeters in Measuring Horizontal Flow in Fractured-Rock Simulators The U.S. Geological Survey (USGS), at the request of the U.S. Army Environmental Command (USAEC), evaluated the capabilities of two borehole technologies to measure horizontal groundwater velocity and direction of flow in a parallel-plate fractured-rock simulator. A colloidal borescope flowmeter (HB) and a heat-pulse flowmeter (HH) were deployed in 4-inch and 6-inch inner-diameter simulated uncased wells that spanned 0.39- and 1.0-inch apertures with simulated groundwater velocities ranging from 2 to 958 feet per day. Measurements were made at the USGS Hydrologic Instrumentation Facility in the Hydraulics Laboratory and the Indianapolis office of the USGS Ohio-Kentucky-Indiana Water Science Center. Ten measurements... Tags: Groundwater flow, Groundwater movement, Hydrogeology, Hydrologic processes, Information Sciences, All tags... Laboratory experiments, USGS Hydrologic Instrumentation Facility, USGS Ohio-Kentucky-Indiana Water Science Center, USGS Science Data Catalog (SDC), Water Resources, fracture (geologic), geoscientificInformation, Fewer tags Temperature and geophysical data collected along the Quashnet River, Mashpee/Falmouth MA (ver. 2.0, March 2020) The temperature and surface geophysical data contained in this release have primarily been collected to support groundwater/surface water methods development, and to characterize the hydrogeological controls on native brook trout habitat. All data have been collected since 2010 along the Quashnet River corridor located on Cape Cod, MA, USA. Cape Cod is a peninsula in southeastern coastal Massachusetts, USA, composed primarily of highly permeable unconsolidated glacial moraine and outwash deposits. The largest of the Cape Cod sole-source aquifers occupies a western (landward) section of the peninsula, and is incised by several linear valleys that drain groundwater south to the Atlantic Ocean via baseflow-dominated... Categories: Data Release - Revised; Tags: Falmouth/Mashpee, Groundwater, InlandWaters, Massachusetts, Quashnet River, All tags... Surface Water, Thermal, USGS Science Data Catalog (SDC), environment, geophysics, geophysics, geoscientificInformation, groundwater, hydrogeology, hydrology, inlandWaters, measurement, seepage, temperature, Fewer tags U-Pb age determinations of uraninite by electron microprobe analyses of ore samples from two solution-collapse breccia pipe uranium deposits, Grand Canyon region, northwest Arizona, USA This data release compiles the electron microprobe spot analyses of U, Th, and Pb concentrations in uraninite (U oxide) particles, and corresponding calculated age determinations, measured in samples of ore from two uranium-copper breccia pipe ore bodies, the Canyon (Pinyon Plain) and Hack II deposits. The U-rich samples that were analyzed typify the deposits hosted by solution-collapse breccia pipes in the Grand Canyon region of northwestern Arizona. Applying procedures outlined by Bowles (1990), the U, Pb, and Th measurements from each spot analysis were used to calculate a model age for the formation of each uraninite particle. The U, Pb, and Th analyses and calculated age determinations are provided as additional... Categories: Data; Tags: <1GB, Arizona, Canyon mine, Coconino County, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Grand Canyon, Hack II mine, MRP, Mineral Resources Program, Mohave County, Tusayan, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), United States, University of Arizona Department of Mining and Geological Engineering, University of Arizona Lunar and Planetary Lab, breccia pipe, copper, economic geology, electron microprobe, energy resources, geology, geoscientificInformation, metallic mineral resources, mine, mineral resources, mineralogy, northwest Arizona, radiometric dating, uranium, Fewer tags Geochemical reanalysis of rock and sediment samples from the Lower Middle Fork of the Salmon River collected as part of the Idaho Primitive Area Studies in the 1960’s through 1980’s This is a geochemical data set from the reanalysis of 44 rock samples collected between 1966 and 1970, and 107 sediment samples collected in 1966 and 1967. These samples were collected by the U.S. Geological Survey for a study investigating the mineral resources of the Idaho Primitive Area (Cater et al., 1973). The samples are from the Lower Middle Fork of the Salmon River, including the tributaries of Big Creek, Camas Creek, Brush Creek, Wilson Creek, Waterfall Creek, Ship Island Creek, Reese Creek, Stoddard Creek, and Papoose Creek. The overall objective of this study is to characterize the regional impact of legacy mining for the Frank Church River of No Return Wilderness Area. Mary P. Rossillon (1981) explored... Categories: Data; Tags: Annie Creek, Atomic absorption analysis, Atomic emission spectroscopy, Beaver Creek, Big Creek, All tags... Big Ramey Creek, Biotite, Biotite-feldspar, Biotite-muscovite, Botha Creek, Brush Creek, Cabin Creek, Calc-silicate rock, Camas Creek, Camp Creek, Canyon Creek, Cave Creek, Challis intrusive, Challis volcanic group, Chemical analysis, Chlorite-biotite, Cliff Creek, Coin Creek, Copper Creek, Coxey Creek, Crooked Creek, Diorite, Eagan Creek, Fawn Creek, GGGSC, Geochemistry, Geochemistry, Geology, Geology, Geophysics, and Geochemistry Science Center, Glacial deposit, Gneiss, Granite, Granodiorite, Hand Creek, Holy Terror Creek, Hornblende-biotite, Idaho, Idaho Primitive Area, Jackass Creek, Lake Creek, Lapilli tuff, Latite, Lehmi group, Lewis Creek, Little Marble Creek, Little Ramey Creek, Logan Creek, Lower Middle Fork Salmon, MRP, Mass spectroscopy, Metasedimentary rock, Middle Fork Salmon River, Middle Fork terraces, Migmatite, Mineral Resources Program, Monumental Creek, Moore Creek, Mule Creek, Neoproterozoic intrusive, Paint Creek, Papoose Creek, Parker Mountain, Phyllite, Porphyry, Quartzite, Quartzose, Rainbow Creek, Reese Creek, Rhyolite, Rush Creek, Schistose, Seafoam, Sedimentology, Ship Island Creek, Smith Creek, Snowslide Creek, Stoddard Creek, Sunnyside tuff, Syenite, Telephone Creek, Threemile Creek, Thunder Mountain, Timm Creek, Trap Creek, USGS Science Data Catalog (SDC), United States, Waterfall Creek, Wildhorse Creek, Wilson Creek, Windermere supergroup, Woodtick Creek, Yellowjacket, Yellowjacket Creek, Fewer tags MODFLOW-NWT model used to evaluate groundwater withdrawal scenarios for the Rush Springs aquifer upgradient from the Fort Cobb Reservoir, western Oklahoma, 1979-2015, including streamflow, base flow, and precipitation statistics A previously published MODFLOW-NWT groundwater-flow model for the Rush Springs aquifer in western Oklahoma (using 1 steady state stress period followed by 444 monthly stress periods representing 1979-2015; Ellis, 2018a) was used as the basis of several groundwater-use scenarios. The model is a 3-layer model including the Cloud Chief formation (confining unit of the Rush Springs aquifer), alluvial and terrace deposits, and the Rush Springs aquifer. The scenarios were used to assess the effects of increasing groundwater withdrawals from the Rush Springs aquifer on base flows to streams that flow into Fort Cobb Reservoir to address concerns over groundwater use reducing inflows to the lake. The effects of groundwater... Tags: Blaine County, Caddo County, Canadian County, Custer County, Dewey County, All tags... Ellis County, Fort Cobb Reservoir, Grady County, Groundwater Model, Hydrology, Kiowa County, MODFLOW-NWT, Major County, Oklahoma, PEST++, Python, Roger Mills County, Rush Springs aquifer, Stephens County, USGS Science Data Catalog (SDC), Washita County, Woodward County, base flow, environment, geoscientificInformation, groundwater, groundwater flow, hydrology, inlandWaters, inlandWaters, modeling, precipitation (atmospheric), streamflow, streamflow depletion, trends, usgsgroundwatermodel, Fewer tags Distribution and status of five non-native fish species in the Tampa Bay drainage (USA), a hot spot for fish introductions-Data This dataset provides supporting information for the species distribution data used in the associated manuscript. Collections of five non-native fish species were made by a number of institutions, and several capture techniques were used. This dataset also includes number of individuals of each species captured at each locality. Categories: Data; Types: Citation; Tags: Alafia River, Aquatic Biology, Florida, Hillsborough River, Little Manatee River, All tags... Manatee River, Tampa Bay basin, USA, USGS Science Data Catalog (SDC), Wildlife Biology, non-native species, species dispersal, species distribution, Fewer tags MODFLOW-OWHM model used to simulate groundwater flow and evaluate storage in the Lucerne Valley Groundwater Basin, California A three-dimensional groundwater flow model, MODFLOW-OWHM, was developed to provide a better understanding of the hydrogeology of the Lucerne Valley Groundwater Basin, California. The model was used to investigate the historical groundwater storage loss and subsidence associated with anthropogenic groundwater demands. The model was calibrated to 1942 through 2016 conditions. This USGS data release contains all of the input and output files for the simulation described in the associated model documentation report https://doi.org/10.3133/sir20225048 Tags: California, Farm Processes, Groundwater Model, Hydrology, InlandWaters, All tags... Lucerne Valley, Lucerne Valley Groundwater Basin, MODFLOW-OWHM, PEST++, Python, San Bernardino County, USGS Science Data Catalog (SDC), Water Resources, environment, geoscientificInformation, groundwater, inlandWaters, usgsgroundwatermodel, Fewer tags Hatchery-reared Roundtail Chub Data, Arizona USA These data were compiled as part of a larger study to evaluate post-stocking survival of hatchery-reared Roundtail Chub. We conducted a two year study (Dec. 2015 – Mar. 2017) in the upper Verde River at the Burnt Ranch stocking location near Paulden, Arizona. Young of year Roundtail Chub were acquired from the Arizona Research and Conservation Center in Cornville, Arizona. Passive integrated transponder (PIT) tags (BioMark, 12.5 mm 134.2 kHz FDX) were implanted into Roundtail Chub each year (n = 333, Year 1; n = 2177, Year 2) prior to stocking. Each year, fish were measured (total length, TL, mm) before release (reflected in Pre-Stocking data table). We used two methods to recapture stocked fish, one passive and... Tags: Aquatic Biology, Arizona, Burnt Ranch, Ecology, Geography, All tags... Information Sciences, PIT tags, Paulden, Roundtail Chub, USGS Science Data Catalog (SDC), Verde River, Wildlife Biology, antenna, biological monitoring, biological sampling, biota, capture-recapture studies, channel wiidth, data release, detections, electrofishing, field sampling, fish, fish measurements, fish recapture, fyke net, hatchery-reared Roundtail Chub, measurement, passive integrated transponder tags, post-stocking survival, survey, survey equipment, survey methods, survival, upper Verde River, Fewer tags Annotated bibliography of grazing effects on amphibians and their habitats (ver. 2.0, February 2022) This database contains literature citations and associated summaries pertaining to livestock grazing effects on amphibians and their habitats, with an emphasis on the Oregon spotted frog (Rana pretiosa) and other listed/sensitive wetland-breeding amphibians in the western United States. This is not meant to be an exhaustive list, nor did we perform a systematic meta-analysis; rather, literature records were included based on topical relevance. *HINT: If you are looking for the database SEARCH TOOL, scroll down to 'Attached Files' and download 'Annotated_bibliography_with_search_tool.accdb.' Open the database file to enter the search form.* This data release supersedes Rowe, J.C., Pearl, C.A., Adams, M.J., and McCreary,... Categories: Data; Tags: Aquatic Biology, Ecology, Land Use Change, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... abundance, amphibians, aquatic biology, biota, disturbance, environment, erosion, estrogenicity, exclosure, fecal bacteria, frogs, grazing, habitats, inlandWaters, land use, livestock, management, native species, nutrients, occupancy, pasture, salamanders, species richness, toads, trampling, vegetation, water quality, weed invasion, western United States, worldwide, Fewer tags Riparian vegetation data used for comparing sampling methods along the Colorado River, Grand Canyon, Arizona These data were collected as part of a methodologial comparison for collecting riparian vegetation data. Two common methods for collecting vegetation data were used: line-point intercept and 1m2 ocular quadrats (visual cover estimates). At each site and transect, both methods were used to collect cover and composition data by four different observers. The same transects and quadrats were utilized for both methods and all observers. Field data collected included percent cover for total living foliar cover, each plant species encountered, litter, dead plant material that is still standing, and ground cover features (biological soil crust, rock, sand, and fine soil particles). Line-point intercept data were collected... Tags: Arizona, Botany, Colorado River, Ecology, Geography, All tags... Glen Canyon Dam, Glen Canyon National Recreation Area, Grand Canyon, Information Sciences, Lees Ferry, USGS Science Data Catalog (SDC), biological sampling, biota, field sampling, line-point intercept, northern Arizona, ocular quadrat, riparian ecosystems, riparian environments, riparian vegetation, vegetation, vegetation sampling methods, Fewer tags MODFLOW-NWT model used to evaluate the groundwater availability of the Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho A three-dimensional groundwater flow model (MODFLOW-NWT) of the Columbia Plateau Regional aquifer (CPRAS) in Washington, Oregon, and Idaho was developed to provide an integrated understanding of the hydrologic system to implement effective water-resource management strategies. The U.S. Geological Survey (USGS) Groundwater Resources Program assessed the groundwater availability as part of a national study of regional systems (https://pubs.usgs.gov/circ/1323/). The CPRAS assessment includes the status of groundwater resources, how these resources have changed over time, and development and application of tools to estimate system responses to stresses from future uses and climate variability and change. A major product... Tags: Blue Mountains, Clearwater Embayment, Columbia Plateau, Columbia River Basalt Group, Grande Ronde Basalt, All tags... Groundwater, Groundwater Model, Hydrology, Idaho, Imnaha Basalt, InlandWaters, InlandWaters, MODFLOW-NWT, Mabton Interbed unit, Oregon, Palouse Slope, Picture Gorge Basalt, Prineville Basalt, Saddle Mountains Basalt, USGS Science Data Catalog (SDC), Vantage Interbed unit, Wanapum Basalt, Washington, Yakima Fold Belt, climate change, environment, geoscientificInformation, usgsgroundwatermodel, Fewer tags Airborne magnetic and radiometric survey, southeast Missouri and western Illinois, 2018-2019 This publication provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over an area of southeast Missouri and western Illinois. The survey represents the first airborne geophysical survey conducted as part of the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) effort (Day, 2019). Earth MRI is a cooperative effort between the USGS, the Association of American State Geologists, and other Federal, State, and private sector organizations to improve our knowledge of the geologic framework of the United States. Data for this survey were collected by Terraquest, Ltd. under contract with the USGS using a fixed wing aircraft with magnetometers... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Earth Mapping Resources Initiative, EarthMRI, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Illinois, All tags... Ironton, MRP, Mineral Resources Program, Missouri, USGS Science Data Catalog (SDC), aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, none, potassium, thorium, uranium, Fewer tags 40Ar/39Ar data from the Old Mine Park area, Trumbull, Connecticut This data release includes 40Ar/39Ar data from the U.S. Geological Survey for samples from Old Mine Park Area, Trumbull, Connecticut. Mineral samples were collected by Robert Wintsch and Harold Moritz. Potassium-bearing mineral grains were separated from the bulk sample and analyzed by argon geochronology at the U.S. Geological Survey Bascom ARgon Dating (BARD) Laboratory in Reston, Virginia. The data provide age constraints on units in the relevant geologic mapping area. Categories: Data; Tags: 40Ar/39Ar, Bascom ARgon Dating Laboratory, Connecticut, Economic Geology, FBGC, All tags... Fairfield County, Geochemistry, Mineral Resources, Structural Geology, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), geologic mapping, Fewer tags Data Release for: A Web-Based Tool for Assessing the Condition of Benthic Diatom Assemblages in Streams and Rivers of the Conterminous United States Benthic diatom assemblages are known to be indicative of water quality but have yet to be widely adopted in biological assessments in the United States due to several limitations. Our goal was to address some of these limitations by developing regional multi-metric indices (MMIs) that are robust to inter-laboratory taxonomic inconsistency, adjusted for natural covariates, and sensitive to a wide range of anthropogenic stressors. We aggregated bioassessment data from two national-scale federal programs and used a data-driven analysis in which all-possible combinations of 2-7 metrics were compared for three measures of performance. The datasets in this release support the Carlisle, et al. 2022 report cited herein.... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Ecology, USGS Science Data Catalog (SDC), Water Quality, algae, All tags... biota, conterminous United States, diatom, health, river, stream, Fewer tags 1 2 3 4 5 ... 19 »