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Station_rgr203 This dataset consists of 102 magnetotelluric (MT) stations collected in 2012-2014 in the Rio Grande Rift and southern Rocky Mountains. The U.S. Geological Survey acquired these data to improve regional conductivity models of the western United States. This work is in support of studies of the effect of lithospheric modification on electrical resistivity structure and tectonic evolution of the western United States. Tags: Colorado Plateau, Electromagnetic surveying, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... MRP, MT, Magnetic field (earth), Mineral Resources Program, New Mexico, Rio Grande Rift, apparent resistivity, geoscientificInformation, impedance, magnetotelluric, phase, regional conductivity models, time series, tipper, Fewer tags Cross-Section Data of the South Platte River near Fort Morgan, Colorado, 2017 The USGS Colorado Water Science Center, in cooperation with the Colorado Water Conservation Board, collected hydraulic data for the South Platte River for areas adjacent to Fort Morgan, Colo., based on the USGS streamgage 06759500 South Platte River at Fort Morgan, CO. The hydraulic data include survey point data for 54 cross sections and 10 pressure transducers, which are used to record the river stage beginning at Morgan County Road 16 and extending downstream to Morgan County Road 20.5 near Fort Morgan, Colo. The cross-section and pressure transducer location data were collected using real-time kinematic Global Navigation Satellite Systems by USGS personnel from February 15, 2017, through April 18, 2017. These... Tags: Colorado, Fort Morgan, Morgan County, South Platte River, flood, All tags... flood inundation map, hazard, hydraulic modeling, streamgage, Fewer tags 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 Associated data for Water Quality and Sediment Quality in the Albemarle Sound, North Carolina, 2012–14, Appendix 3 These are all the chemical, biological, and physical results collected in 2013 and 2014 for the subject study. Categories: Data; Tags: Albemarle Sound, Bertie County, Camden County, Chowan County, Currituck County, All tags... Dare County, North Carolina, Pasquotank County, Perquimans County, Tyrrell County, Washington County, aquatic biology, water chemistry, water properties, water-quality data, Fewer tags Shapefiles of the flood-inundation maps for the Meramec River at Arnold, Missouri, 2018 Digital flood-inundation maps for a 9.5-mile reach of the Meramec River at Arnold, Missouri, were created by the U.S. Geological Survey (USGS) in cooperation with the United States Army Corps of Engineers, St. Louis Metropolitan Sewer District, Missouri Department of Transportation, Missouri American Water, Federal Emergency Management Agency Region 7, the City of Pacific, the City of Eureka, the City of Wildwood, and the City of Arnold. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the USGS streamgage... Tags: Arnold, Eureka, Fenton, Meramec River, Missouri, All tags... Valley Park, flood, flood-inundation maps, flooded area, geospatial analysis, high-water marks, river/stream, Fewer tags Station_rgr320 This dataset consists of 102 magnetotelluric (MT) stations collected in 2012-2014 in the Rio Grande Rift and southern Rocky Mountains. The U.S. Geological Survey acquired these data to improve regional conductivity models of the western United States. This work is in support of studies of the effect of lithospheric modification on electrical resistivity structure and tectonic evolution of the western United States. Tags: Electromagnetic surveying, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Great Plains, All tags... MRP, MT, Magnetic field (earth), Mineral Resources Program, New Mexico, Rio Grande Rift, apparent resistivity, geoscientificInformation, impedance, magnetotelluric, phase, regional conductivity models, time series, tipper, Fewer tags Station_rgr403 This dataset consists of 102 magnetotelluric (MT) stations collected in 2012-2014 in the Rio Grande Rift and southern Rocky Mountains. The U.S. Geological Survey acquired these data to improve regional conductivity models of the western United States. This work is in support of studies of the effect of lithospheric modification on electrical resistivity structure and tectonic evolution of the western United States. Tags: Basin and Range, Electromagnetic surveying, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... MRP, MT, Magnetic field (earth), Mineral Resources Program, New Mexico, Rio Grande Rift, apparent resistivity, geoscientificInformation, impedance, magnetotelluric, phase, regional conductivity models, time series, tipper, Fewer tags Station_rgr409 This dataset consists of 102 magnetotelluric (MT) stations collected in 2012-2014 in the Rio Grande Rift and southern Rocky Mountains. The U.S. Geological Survey acquired these data to improve regional conductivity models of the western United States. This work is in support of studies of the effect of lithospheric modification on electrical resistivity structure and tectonic evolution of the western United States. Tags: Basin and Range, Electromagnetic surveying, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... MRP, MT, Magnetic field (earth), Mineral Resources Program, New Mexico, Rio Grande Rift, apparent resistivity, geoscientificInformation, impedance, magnetotelluric, phase, regional conductivity models, time series, tipper, Fewer tags Hillshade raster (235-degree azimuth, 20-degree sun angle) derived from lidar data collected after the August 24, 2014 South Napa earthquake Hillshade of lidar-derived, bare earth digital elevation model, with 235-degree azimuth and 20-degree sun angle, 0.25m resolution, depicting earthquake effects following the August 24, 2014 South Napa Earthquake. Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, Raster; Tags: California, Napa, Napa County, San Francisco Bay, earthquake occurrences, All tags... faulting (geologic), field inventory and monitoring, field methods, field sampling, geoscientificInformation, image collections, lidar, Fewer tags High-water mark data from Hurricane Sandy for the coastal areas of Connecticut, Rhode Island, and Massachusetts, October 29-30, 2012 High-water marks were collected following Hurricane Sandy, October 29-30, 2012, along the coastal areas of Connecticut, Rhode Island, and Massachusetts. Information on 371 high-water marks that were flagged following Hurricane Sandy is presented in this data release. The general information on the high-water marks presented includes site identification number, location, elevation, quality, type, and website links to the data. Of the 371 high-water marks flagged, 364 high-water marks were surveyed and 7 high-water marks were not found. The U.S. Geological Survey identified and flagged the high-water marks during October and November 2012 following Hurricane Sandy; and surveyed the marks during October and November... Categories: Data; Tags: Connecticut, Hurricane Sandy, Massachusetts, Rhode Island, USGS Science Data Catalog (SDC), All tags... Water Resources, coastal, floods, high-water mark, storm surge, Fewer tags Tidal marsh biomass field plot and remote sensing datasets for six regions in the conterminous United States Note: This dataset has been revised and superseded by version 2.0, available here: https://doi.org/10.5066/P90PG34S. Remote sensing based maps of tidal marshes, both of their extents and carbon stocks, have the potential to play a key role in conducting greenhouse gas inventories and implementing climate mitigation policies. Our objective was to generate a single remote sensing model of tidal marsh aboveground biomass and carbon that represents nationally diverse tidal marshes within the conterminous United States (CONUS). To meet this objective we developed the first national-scale dataset of aboveground tidal marsh biomass, species composition, and aboveground plant carbon content (%C) from six CONUS regions:... Tags: C-band synthetic aperture radar, Cape Cod, Chesapeake Bay, Ecology, National greenhouse gas inventory, All tags... Puget Sound, Remote Sensing, Remote sensing, San Francisco Bay, St Mary Parish, Terrebonne Parish, The Everglades, aboveground carbon stocks, multispectral imagery, plant biomass, plant functional type, tidal marsh biomass, Fewer tags Photographs of fault rupture and ground deformation features produced by the Mw 6.0 South Napa earthquake of August 24, 2014 This product is the result of a comprehensive compilation of site-specific ground photographs taken where tectonic faulting and ground failure produced visible deformation that fractured and disturbed the ground surface. The resultant data is distributed as collection of JPEG image files. All post-earthquake photographs taken by investigators working for public agencies are in the public domain, including data that have been published in summary reports elsewhere. These photographs are best viewed in context with fault rupture and other observations from the related KMZ file of summary field observations and photographs (https://www.sciencebase.gov/catalog/item/5c1d7ae0e4b0708288ca1322), or from the associated open-file... Tags: California, Napa, Napa County, San Francisco Bay, deformation (geologic), All tags... earthquake occurrences, faulting (geologic), field inventory and monitoring, geoscientificInformation, image collections, photography, Fewer tags Metagenomics analysis of groundwater, surface water, and sand samples at Jeorse Park in East Chicago, Indiana, 2017 This dataset provides results of a targeted bacterial community metagenomic analysis of surface water, groundwater, and sand samples at Jeorse Park on Lake Michigan in East Chicago, Indiana. Seventy-two samples were collected from 6 sites in 2017. Samples were analyzed for the 16S ribosomal RNA (16S rRNA) gene (the S in 16S refers to the rate of sedimentation, in Svedberg units, of the RNA molecule in a centrifugal field), and one sample was excluded because it produced too few reads. The 16S rRNA gene is the most conserved of three rRNA genes (16S, 23S, and 5S) and is considered the most reliable for identification and taxonomic classification of bacterial species (Bouchet and others, 2008). Taxonomic analysis... Tags: 16S rRNA, East Chicago, IN, Great Lakes, Jeorse Park, Lake Michigan, All tags... Northwest Indiana, bacteria, beach health, gene sequence analysis, nearshore, Fewer tags LaserProfiler Corescan© Hyperspectral Core Imager Mark III (HCI-III) system data were acquired for hand samples, and subsequent billets made from the hand samples, collected during the U.S. Geological Survey (USGS) 2014, 2015, and 2016 field seasons in the Nabesna area of the eastern Alaska Range. This area contains exposed porphyry deposits and hand samples were collected throughout the region in support of the HyMap imaging spectrometer survey (https://doi.org/10.5066/F7DN435W) (Kokaly and others, 2017a). The HCI-III system consists of three different components. The first is an imaging spectrometer which collects reflectance data with a spatial resolution of approximately 500 nanometers (nm) for 514 spectral channels covering... Tags: Alaska, Alaska, Alaska Range, Bond Creek, Canada, All tags... ENVI, Environment for Visualizing Images, MRP, Mineral Resources Program, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, SWIR, VNIR, Valdez-Cordova County, Wrangell Mountains, Wrangell–Saint Elias National Preserve, Yukon Territory, economy, geoscientificInformation, hyperspectral imaging, imaging spectroscopy, infrared imaging, mineral resources, mineralogy, remote sensing, shortwave infrared, spectroscopy, visible-near infrared, Fewer tags station mp205 This dataset consists of 65 magnetotelluric (MT) stations collected in 2015 near Mountain Pass, California. The U.S. Geological Survey acquired these data to create a regional conductivity model near the Mountain Pass mine. This work is in support of characterizing mineral deposits. Tags: Apparent Resistivity, California, Clark Mountain, Earth Magnetic Field, GMEGSC, All tags... Geology, Minerals, Energy, and Geophysics Science Center, GeoscientificInformation, Impedance, Ivanpah, MRP, MT, Magnetotellurics, Mescal Ranges, Mineral Resources Program, Mojave, Mountain Pass, Phase, San Bernardino County, Time Series, Tipper, electromagnetic surveying, geophysics, magnetotelluric surveying, Fewer tags A National Land Use And Land Cover Projection For Threat Assessment And Conservation Planning This dataset contains a projection of land use and land cover for the conterminous United States for the period 2001 - 2061. This projection used the USGS's LUCAS (Land Use and Carbon Scenario Simulator) model to project a business as usual scenario of land cover and land use change. By running the LUCAS model on the USGS's YETI high performance computer and parallelizing the computation, we ran 100 Monte Carlo simulations based on empirically observed rates of change at a relatively fine scale (270m). We sampled from multiple observed rates of change at the county level to introduce heterogeneity into the Monte Carlo simulations. Using this approach allowed the model to project different outcomes that were summarized... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CONUS USA, LUCAS model, USGS Science Data Catalog (SDC), land cover, land use, All tags... projection, scenario, Fewer tags Thermal Imagery along Ellerbe Creek in Durham, North Carolina An initial reconnaissance survey in March 2016 and a subsequent survey in July 2016 was conducted to identify possible groundwater discharge points along the stream reach using a forward-looking infrared (FLIR) camera in seasonal extremes. The high-resolution thermal imaging camera captures the emitted infrared radiation of the objects in view. Recent studies using similar ground-based thermal infrared imaging techniques have been successful in qualitatively locating groundwater discharge along discrete features, such as fractures and faults, as well as diffuse seepage along stream banks (Deitchman and Loheide, 2009; Pandey and others, 2013). Sites of interest were those where temperature differences were observed... Categories: Data; Tags: Durham County, Ellerbe Creek, FLIR, Geophysics, Groundwater, All tags... North Carolina, Temperature, Thermal Imagery, Fewer tags Contract laboratory results Samples were submitted for contract laboratory analysis as part of a study examining the occurrence of chromium and natural and anthropogenic hexavalent Chromium, Cr(VI) in groundwater. Data will be used to estimate naturally-occurring background Cr(VI) concentrations upgradient, near the plume margins, and downgradient from a mapped Cr(VI) contamination plume near Hinkley, CA (Izbicki and Groover, 2016). These Contract Lab results are part of the data release including grain-size distribution, photographic and associated chemical and mineral analysis data for 36 sediment core and alluvium samples as well as Scanning Electron Microscopy analysis on select grains from magnetic and heavy mineral separates collected... Categories: Data; Tags: California, Hinkley, atomic emission spectroscopy, background level, chemical analysis, All tags... chromium, contamination and pollution, geochemistry, geoscientificInformation, groundwater, health, mass spectroscopy, rocks and deposits, scanning electron microscopy, soil chemistry, unconsolidated deposits, x-ray fluorescence, Fewer tags Fourmile Canyon Wildfire Longitudinal Profile Data This dataset represents 25 parallel longitudinal profiles that were extracted from terrestrial lidar point clouds taken during six survey periods. The six lidar surveys were conducted between 7 October 2010 and 8 October 2013. Over that time a colluvial hollow eroded into a fluvial channel. The longitudinal profiles show the topography of the colluvial hollow for each survey period. The width of the original colluvial hollow was approximately 1.25 m, and a longitudinal profile was extracted every 5 cm for the entire length of the hollow, resulting in 25 parallel longitudinal profiles. These data can be used to observe the transition of the colluvial hollow to a fluvial channel and furthermore they show the development... Types: Citation; Tags: Fourmile Canyon, Colorado, GHSC, Geologic Hazards Science Center, LHP, LIDAR, All tags... Landslide Hazards Program, Soil Sciences, USGS, USGS Science Data Catalog (SDC), burned watershed, colluvial hollow, earth science, fluvial channel, landslide hazard, soil erosion, wildfire, wildfire hazard, Fewer tags Surface water and groundwater water chemistry data collected along the Quashnet River, Mashpee/Falmouth, MA This data set includes dissolved oxygen (DO) and specific conductivity (SpC) data collected in both the surface water and shallow streambed at the Quashnet River, Mashpee, USA from 2014-16. This data was collected to better understand groundwater discharge to the river and associated brook trout habitat. DO was typically near saturation in surface water and some groundwater, but is reduced in streambed zones that may be influenced by buried peat lenses. SpC was used as an indicator of groundwater flowpath dynamics, and lower values were generally associated with higher DO. Categories: Data; Tags: Cape Cod, MA, USGS Science Data Catalog (SDC), groundwater and surface-water interaction « 1 2 3 4 5 ... »