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G-2946 : Synthetic Seismogram Data for Correlation Between Seismic-Reflection Profiles and Well Data, Broward County, Florida The data set consists of text files used to create the synthetic seismogram - City of Miramar, G-2946, (IW-2), Broward County, Florida. Categories: Data; Types: Citation; Tags: Broward County, Miami-Dade County, USA, United States, data preservation, All tags... geoscientificInformation, marine geophysics, oceans, sea-floor characteristics, seismic, seismic reflection methods, seismology, synthetic seismology, Fewer tags FTS RSS Temperature Test 1, John C. Stennis Space Center, Nov 2015 Two identical Radar Stage Sensors from Forest Technology Systems, were evaluated to determine if they are suitable for U.S. Geological Survey (USGS) hydrologic data collection. The sensors were evaluated in laboratory conditions to evaluate the distance accuracy of the sensor over the manufacturer’s specified operating temperatures and distance to water ranges. Laboratory results were compared to the manufacturer’s accuracy specification of ±0.007 foot (ft) and the USGS Office of Surface Water (OSW) policy requirement that water level sensors have a measurement uncertainty of no more than 0.01 ft or 0.20 percent of the indicated reading. In the temperature chamber test, both sensors were within the manufacturer’s... Categories: Data; Types: Citation; Tags: John C. Stennis Space Center, Level, Mississippi, Radar, Stage, All tags... Surface Water, Temperature, Fewer tags Water level data during pumping for stressed HPFM measurements for selected boreholes near GMH Electronics Superfund site, Roxboro, NC (2012-2015) The collection of borehole geophysical logs and images and continuous water-level data was conducted by the U.S. Geological Survey South Atlantic Water Science Center in the vicinity of the GMH Electronics Superfund site near Roxboro, North Carolina, during December 2012 through July 2015. The study purpose was part of a continued effort to assist the U.S. Environmental Protection Agency in the development of a conceptual groundwater model for the assessment of current contaminant distribution and future migration of contaminants. Previous work by the U.S. Geological Survey South Atlantic Water Science Center at the site involved similar data collection, in addition to surface geologic mapping and passive diffusion... Categories: Data; Types: Citation; Tags: North Carolina, Person County, Roxboro, fractured-rock aquifer, geophysical logging, All tags... groundwater, Fewer tags Percent impervious surface for selected Chesapeake Bay watersheds This dataset contains watershed means of estimated percent impervious surfaces for three time periods: 1992, 2002, and 2012. Estimates are based on coefficients derived from comparing land use of the 2012 NAWQA Wall-to-wall Anthropogenic Land-use Trends (NWALT) product to the 2011 National Land Cover Database (NLCD) imperviousness, then applying those coefficients to previous years (1974-2002) of the NWALT dataset. Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, impervious surfaces, surface water quality, Fewer tags How nests found Arizona 2011-2013 In 2011 through 2013, when nests were found, notes were kept on whether it held eggs or hatchlings at the time of discovery, and how it was found. Ammodramus savannarum ammolegus (commonly referred to as the Arizona Grasshopper Sparrow) occurs in the desert and plains grasslands of southeastern Arizona, southwestern New Mexico, and northern Sonora, Mexico. Although a subspecies of conservation concern, this data was produced as part of the first intensive study of its life history and breeding ecology, providing baseline data and facilitating comparisons with other North American Grasshopper Sparrow subspecies. This study is described in the publication listed in the larger work citation of this metadata record. Categories: Data; Types: Citation; Tags: Ammodramus savannarum ammolegus, Arizona, Arizona Grasshopper Sparrow, Audubon Appleton-Whittell Research Ranch, Bureau of Land Management (BLM), Las Cienegas National Conservation Area, All tags... Santa Cruz, United States, behavioral observation, biota, birds, desert grassland, ecology, foot flush, grassland bird, life history, nest, rope dragging, Fewer tags Evapotranspiration, Groundwater, and Unsaturated-Zone Data, Amargosa Desert, Nye County, Nevada, 2011-13 This USGS Data Release supports USGS Scientific Investigations Report (SIR) 2017-5079. Following is the abstract from SIR 2017-5079: This report documents methodology and results of a study to evaluate groundwater discharge by evapotranspiration (GWET) in sparsely vegetated areas of Amargosa Desert and improve understanding of hydrologic-continuum processes controlling groundwater discharge. Evapotranspiration and GWET rates were computed and characterized at three sites over 2 years using a combination of micrometeorological, unsaturated zone, and stable-isotope measurements. One site (Amargosa Flat Shallow [AFS]) was in a sparse and isolated area of saltgrass (Distichlis spicata) where the depth to groundwater... Categories: Data; Types: Citation; Tags: Amargosa Desert, Amargosa Flat, Evapotranspiration, Groundwater levels, Nevada, All tags... Nye County, Soil chemical properties, Soil hydraulic properties, Soil physical properties, USGS Science Data Catalog (SDC), Unsaturated zone, Water Resources, Fewer tags Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA: Table 3. Detailed information on calculations of environmental tracer data. High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H, 3Hetrit, SF6 , 14C and 4Herad) of groundwater age from 80 public-supply wells (PSWs). Groundwater ages were estimated by calibration of tracers to lumped parameter models and ranged from modern (1 Myr) in the most downgradient, confined portions of the potable system. More than 80 and 40 percent of mean groundwater ages were older than 1000 and 50,000 yr, respectively. Anoxic, Fe-reducing conditions and increased mineralization develop with time in the aquifer system and mobilize Ra into solution resulting in the frequent occurrence of combined... Categories: Data; Types: Citation; Tags: Cambrian-Ordovician aquifer system, Illinois, Iowa, Michigan, Minnesota, All tags... NAWQA, Wisconsin, alpha recoil, cycle 3, dissolved gas, groundwater age, lumped parameter modeling, nawqa, radium, radium 226 distribution coefficient, recharge temperature, water quality, Fewer tags Elevation-area-capacity table, Cannonsville Reservoir, 2015 From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the... Categories: Data; Types: Citation; Tags: Cannonsville Reservoir, Delaware County, GPS measurement, bathymetry, single-beam echo sounder Elevation Raster, Cannonsville Reservoir, 2015 From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, Raster; Tags: Cannonsville Reservoir, Delaware County, GPS measurement, bathymetry, single-beam echo sounder Mount Adams Electromagnetic and Magnetic Data Hydrothermally altered rocks, particularly if water saturated, can weaken stratovolcanoes, thereby increasing the potential for catastrophic sector collapses that can lead to far-traveled, destructive debris flows, which are the largest volcanic hazards for Mount Adams and Mount Baker. Evaluating the hazards associated with such alteration is difficult because much of the alteration is obscured by ice and its depth extent is unknown. Intense hydrothermal alteration significantly reduces the resistivity and magnetization of volcanic rock and therefore hydrothermally altered rocks are identified with helicopter electromagnetic and magnetic measurements at Mount Baker and Mount Adams. High resolution magnetic and electromagnetic... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CGGSC, Crustal Geophysics and Geochemistry Science Center, Fugro Airborne Surveys, Mount Adams, Washington, All tags... aeromagnetic surveying, electromagnetic surveying, geophysics, geospatial datasets, magnetic surveying, mountain, resistivity, volcanic hazards, Fewer tags Spectra Used in Figures This dataset contains reflectance and transmission spectra of unexpanded and expanded vermiculite ore, and handpicked flakes of phlogopite, hydrobiotite, and vermiculite. These samples were collected from mines near Enoree, South Carolina; Libby, Montana; Louisa, Virginia; Palabora, Llano, Texas; and South Africa. Spectra are identified as either reflectance or transmission in the alphanumeric file names and correlate to specpr record numbers designated in the manuscript figures in which they are shown. These transmission spectra were converted to absorbance in many of the figures. Spectra of talc, fibrous richterite amphibole, and serpentine are from well characterized samples from Feiser Mine, Ruby Mountains,... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CGGSC, CMERSC, Central Minerals and Environmental Resources Science Center, China, Crustal Geophysics and Geochemistry Science Center, All tags... Enoree, Jiangsu, Libby, Libby, Louisa, MRP, Mineral Resources Program, Montana, Palabora, South Africa, South Carolina, VSPEC technique, Vermiculite insulation, Virginia, chemical analysis, electron probe microanalysis, electron probe microanalysis, elongate amphiboles, environment, expanded vermiculite, geoscientificInformation, mineral deposits, mineralogy, provenance, reflectance spectroscopy, scanning electron microscopy, spectroscopy, x-ray diffraction, Fewer tags Elevation Contours, Cannonsville Reservoir, 2015 From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cannonsville Reservoir, Delaware County, GPS measurement, bathymetry, single-beam echo sounder Echosounder Quality Assurance Points, Neversink Reservoir, 2014 From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: GPS measurement, Neversink Reservoir, Sulllivan County, bathymetry, single-beam echo sounder Echosounder Quality Assurance Points, Rondout Reservoir, 2013 to 2014 From 2013 to 2015, bathymetric surveys of New York City’s six West of Hudson reservoirs (Ashokan, Cannonsville, Neversink, Pepacton, Rondout, and Schoharie) were performed to provide updated capacity tables and bathymetric maps. Depths were surveyed with a single-beam echo sounder and real-time kinematic global positioning system (RTK-GPS) along planned transects at predetermined intervals for each reservoir. A separate set of echo sounder data was collected along transects at oblique angles to the main transects for accuracy assessment. Field survey data was combined with water-surface elevations in a geographic information system to create three-dimensional surfaces representing reservoir-bed elevations in the... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: GPS measurement, Rondout Reservoir, Sullivan County, Ulster County, bathymetry, All tags... single-beam echo sounder, Fewer tags Permafrost Soil Measurements; Alaska, 2015 This release contains Active Layer Thickness (ALT) and Organic Layer Thickness (OLT) measurements measured along transects in Alaska, 2015. Site condition information in terms of wildfire burns is also included. Categories: Data; Types: Citation; Tags: Active layer, Active layer thickness, Alaska, Borehole nuclear magnetic resonance, Chatanika, All tags... City of Fairbanks, Coldfoot, Disturbance, Fire, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Organic layer, Organic layer thickness, Permafrost, Resistivity profiling, Soils, Toolik Lake, environment, fire damage, fires, geoscientificInformation, permafrost, resistivity, soil moisture, Fewer tags G-2961 (HOL-IW1) : Synthetic Seismogram Data for Correlation Between Seismic-Reflection Profiles and Well Data, Broward County, Florida The data set consists of time, depth, reflection coefficient synthetic, sonic velocity, density, and amplitude used to create synthetic seismogram - City of Hollywood Utility, G-2961, (HOL-IW1), Broward County, Florida. Categories: Data; Types: Citation; Tags: Broward County, Miami-Dade County, USA, United States, data preservation, All tags... geoscientificInformation, marine geophysics, oceans, sea-floor characteristics, seismic, seismic reflection methods, seismology, synthetic seismology, Fewer tags Wastewater Treatment Plant Total Phosphorus Flux Load Estimates Red River of the North Basin The dataset contains estimates for total phosphorus flux from wastewater treatment plants that discharge to surface water within the Red River of the North Basin in the United States and subbasins. Shapefiles defining the subbasins are available as part of the same data release in which these data are published. Estimates of wastewater treatment plant total phosphorus flux (or load) were calculated by Tammy Ivanhnenko for the years 1978, 1980, 1982, 1984, 1986, 1988, 1990, 1992, 1996, 2000, 2004, 2008, and 2012. Flux estimates were based on the average discharge from the wastewater treatment plants and treatment level, both reported as part of the U.S. Environmental Protection Agency's Clean Watershed Needs Survey,... Categories: Data; Types: Citation; Tags: Crookston, Emerson, Fargo, Halstad, Kindred, All tags... Minnesota, Moorhead, Neche, North Dakota, Pembina River, Red Lake River, Red River of the North, Sheyenne River, South Dakota, nutrient content (water), surface water quality, total phosphorus, wastewater discharge, Fewer tags Cave and Karst Biota Modeling in the Appalachian LCC - Predicted Amphipods in sampled 20km grid cells We developed spatial summary (GIS) layers for a study of factors influencing the distribution of cave and karst associated fauna within the Appalachian Landscape Conservation Cooperative region, one of 22 public-private partnerships established by the United States Fish and Wildlife Service to aid in developing landscape scale solutions to conservation problems (https://lccnetwork.org/lcc/appalachian). We gathered occurrence data on cave-limited terrestrial and aquatic troglobiotic species from a variety of sources within the Appalachian LCC region covering portions of 15 states. Occurrence records were developed from the scientific literature, existing biodiversity databases, personal records of the authors, museum... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: biota, caves, karst Cave and Karst Biota Modeling in the Appalachian LCC - Predicted spiders in all 20km grid cells in karst We developed spatial summary (GIS) layers for a study of factors influencing the distribution of cave and karst associated fauna within the Appalachian Landscape Conservation Cooperative region, one of 22 public-private partnerships established by the United States Fish and Wildlife Service to aid in developing landscape scale solutions to conservation problems (https://lccnetwork.org/lcc/appalachian). We gathered occurrence data on cave-limited terrestrial and aquatic troglobiotic species from a variety of sources within the Appalachian LCC region covering portions of 15 states. Occurrence records were developed from the scientific literature, existing biodiversity databases, personal records of the authors, museum... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: biota, caves, karst Cave and Karst Biota Modeling in the Appalachian LCC - Predicted endemics in sampled 20km grid cells We developed spatial summary (GIS) layers for a study of factors influencing the distribution of cave and karst associated fauna within the Appalachian Landscape Conservation Cooperative region, one of 22 public-private partnerships established by the United States Fish and Wildlife Service to aid in developing landscape scale solutions to conservation problems (https://lccnetwork.org/lcc/appalachian). We gathered occurrence data on cave-limited terrestrial and aquatic troglobiotic species from a variety of sources within the Appalachian LCC region covering portions of 15 states. Occurrence records were developed from the scientific literature, existing biodiversity databases, personal records of the authors, museum... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: biota, caves, endemic species, karst 1 2 3 4 5 ... »