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Location Folder Show Tree ROOT _ScienceBase Catalog __USGS Data Release Products 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 07/28/2017 Flow Event Data 12-digit hydrologic unit outlet (pour) points for the NHDPlus V2.1 WBD snapshot 1992 digital surface model and orthomosaic of Malakoff Diggins State Historic Park, California 2010-2017 zooplankton data from whole water-column tows in Lakes Michigan and Huron 2013 East Bay Seismic Experiment (EBSE) -- Implosion Data, Hayward, Calif More... Filters Date Range Past year (6) Past month (2) Past week (1) Past day (0) Custom range... To   Search Extensions Shapefile (27) ArcGIS Service Definition (1) Types Map Service (32) OGC WFS Layer (31) OGC WMS Layer (31) Shapefile (29) Downloadable (28) More... Contacts U.S. Geological Survey - ScienceBase U.S. Geological Survey Stephanie R James Geology, Geophysics, and Geochemistry Science Center David M Rey More... Categories Data (45) Data Release - Revised (2) Tag Types Theme (49) Place (48) USGS Scientific Topic Keyword (15) Harvest Set (23) Tag Schemes None (39) USGS Thesaurus (41) Geographic Names Information System (GNIS) (34) ISO 19115 Topic Category (41) Common geographic areas (9) Common Geographic Areas (4) Alexandria Digital Library Feature Type Thesaurus (3) More... View Results as: JSON ATOM CSV Browse Folder

Location of Seismic Reflection Line CRmv This dataset provides location information for the seismic reflection line CRmv across Crowleys Ridge in the New Madrid seismic zone, central US. The seismic reflection data are interpreted and discussed in the associated publication Categories: Data; Tags: Arkansas, Central United States, New Madrid, faults, geoscientificInformation, All tags... ghsc, seismic reflection line, Fewer tags Airborne electromagnetic and magnetic survey data and inverted resistivity models, western Yukon Flats, Alaska, February 2016 Airborne electromagnetic (AEM) and magnetic survey data were collected during February 2016 along 300 line kilometers in the western Yukon Flats near Stevens Village, Alaska. Data were acquired with the CGG RESOLVE frequency-domain helicopter-borne electromagnetic systems together with a Scintrex Cesium Vapour CS-3 magnetometer. The AEM average depth of investigation is about 100 m. The survey was flown at a nominal flight height of 30 m above terrain along widely spaced reconnaissance lines. This data release includes raw and processed AEM data and laterally-constrained inverted resistivity depth sections along all flight lines. This release also includes unprocessed and processed magnetic data that has been drift... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska Division of Geological and Geophysical Surveys, CGGSC, Crustal Geophysics and Geochemistry Science Center, Geophysics, NASA ABoVE, All tags... USGS Science Data Catalog (SDC), aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, permafrost, resistivity, Fewer tags Alaska permafrost characterization: Electrical Resistivity Tomography Data & Models from 2019 Electrical resistivity tomography (ERT) measurements were collected by the U.S. Geological Survey (USGS) at two sites in Interior Alaska in September 2019 for the purposes of imaging permafrost structure and quantifying variations in subsurface moisture content in relation to thaw features. First, ERT data were collected at Big Trail Lake, a thermokarst lake outside of Fairbanks, Alaska, to quantify permafrost characteristics beneath the lake and across its shorelines. Three 222 m ERT survey lines were collected perpendicular to the North, East, and South shorelines, and two 110 m lines were collected parallel to the southeast and northeast shorelines. Models of electrical resistivity produced from these data revealed... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Active layer thickness, Alaska, Big Trail Lake, Bonanza Creek Experimental Forest, Disturbance, All tags... Electrical Resistivity Tomography, Fairbanks North Star, Fire, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Hydrologic processes, Land Change Science Program, Permafrost, U.S. Geological Survey, USGS, electrical resistivity, environment, fires, geoscientificInformation, hydrologic processes, permafrost, soil moisture, Fewer tags Airborne electromagnetic, magnetic, and radiometric survey, upper East River and surrounding watersheds near Crested Butte, Colorado, 2017 This data release consists of 1,984 line-kilometers of airborne electromagnetic (AEM), magnetic data and radiometric data collected from October to November 2017 in the upper East River and surrounding watersheds in central Colorado. The U.S. Geological Survey contracted Geotech Ltd. to acquire these data as part of regional investigations into the geologic structure and hydrologic framework of the area. The AEM data have been inverted to produce a series of regional cross-sections that constrain the electrical properties of the subsurface to a depth of ~500m. Data were acquired using the VTEM ET time-domain helicopter-borne electromagnetic system along flight lines that cross important geological structures over... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Colorado, Crested Butte, East River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Gunnison County, Mineral Resources Program, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), aeromagnetic surveying, electromagnetic surveying, geophysics, geoscientificInformation, geospatial datasets, groundwater, groundwater flow, hydrogeology, magnetics, near surface, radiometrics, resistivity, Fewer tags Ground-based electromagnetic survey, Alamosa, Colorado, March 2020 Shallow soil conductivity was mapped in the San Luis Valley, Colorado, using the DualEM421 electromagnetic sensor in March 2020. Data were acquired by towing the DualEM421 sensor on a wheeled cart behind an all-terrain vehicle, with the sensor at a height of 0.457 m above the ground surface. Approximately 62 line-kilometers of data were acquired over an area of nearly 1.5 square kilometers, with 20 m separation between survey lines. Data were manually edited for noise sources (powerlines, pipelines, or other buried structures), and averaged to regular output soundings every 1 m along survey lines. Data were corrected for offset between the recorded GPS location and data locations for each coil pair, but were not... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alamosa County, Colorado, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources, All tags... San Luis Valley, USGS Science Data Catalog (SDC), Water Resources, electromagnetic surveying, electromagnetics, environment, geophysics, geoscientificInformation, groundwater, hydrogeology, resistivity, water resources, Fewer tags Airborne electromagnetic and magnetic survey data, northeast Wisconsin (ver. 1.1, June 2022) Airborne electromagnetic (AEM) and magnetic survey data were collected during January and February 2021 over a distance of 3,170 line kilometers in northeast Wisconsin. These data were collected in support of an effort to improve estimates of depth to bedrock through a collaborative project between the U.S. Geological Survey (USGS), Wisconsin Department of Agriculture, Trade, and Consumer Protection (DATCP), and Wisconsin Geological and Natural History Survey (WGNHS). Data were acquired by SkyTEM Canada Inc. with the SkyTEM 304M time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was acquired at a nominal flight height of 30 - 40 m above terrain... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Brown County, Calumet County, Door County, Fond du Lac County, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Kewaunee County, Manitowoc County, Sheboygan County, UMid WSC, USGS Science Data Catalog (SDC), Upper Midwest Water Science Center, Wisconsin, aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, resistivity, stratigraphic thickness, Fewer tags Location of AEM lines across Crowleys Ridge This dataset provides location information for the airborne electromagnetic (AEM) lines across Crowleys Ridge in the New Madrid seismic zone, central US. The AEM data are interpreted and discussed in the associated publication Categories: Data; Tags: Arkansas, Central United States, GHSC, Mississippi Alluvial Plain, New Madrid Seismic Zone, All tags... Northern Mississippi Embayment, aquifer, faults, geoscientificInformation, Fewer tags Fire impacts on permafrost in Alaska: Geophysical and other field data collected in 2015 Fire can be a significant driver of permafrost change in boreal landscapes, altering the availability of soil carbon and nutrients that have important implications for future climate and ecological succession. However, not all landscapes are equally susceptible to fire-induced change. As fire frequency is expected to increase in the high latitudes, methods to understand the vulnerability and resilience of different landscapes to permafrost degradation are needed. Geophysical and other field observations reveal details of both near-surface (less than 1 m) and deeper (greater than 1 m) impacts of fire on permafrost along 14 transects that span burned-unburned boundaries in different landscape settings within interior... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Active layer thickness, Alaska, Borehole nuclear magnetic resonance, Chatanika, City of Fairbanks, All tags... Coldfoot, Disturbance, Fire, GGGSC, Geology, Geophysics, and Geochemistry Science Center, MRP, Mineral Resources Program, Organic layer thickness, Permafrost, Resistivity profiling, Soils, Toolik Lake, USGS Science Data Catalog (SDC), environment, fire damage, fires, geoscientificInformation, permafrost, resistivity, soil moisture, vegetation, Fewer tags Airborne Electromagnetic (AEM) Survey in Southwest and Southeast Areas, Wisconsin, 2022 Airborne electromagnetic (AEM) and magnetic survey data were collected during March 2022 over a distance of 2,574.6 line kilometers in southeast and southwest Wisconsin. These data were collected in support of an effort to improve estimates of depth to bedrock through a collaborative project between the U.S. Geological Survey (USGS), Wisconsin Department of Agriculture, Trade, and Consumer Protection (DATCP), and Wisconsin Geological and Natural History Survey (WGNHS). Data were acquired by SkyTEM Canada Inc. with the SkyTEM 304M time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was acquired at a nominal flight height of 30 - 40 meters (m)... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Crawford County, Dane County, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... Grant County, Green County, Hydrology, Iowa County, Jefferson County, Kenosha County, Lafayette County, Racine County, UMid WSC, USGS Science Data Catalog (SDC), Upper Midwest Water Science Center, Walworth County, Water Resources, Waukesha County, Wisconsin, aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, resistivity, stratigraphic thickness, Fewer tags APEX Soil Temperature and Moisture Data from 2018-2020 Geophysical measurements and related field data were collected by the U.S. Geological Survey (USGS) at the Alaska Peatland Experiment (APEX) site in Interior Alaska from 2018 to 2020 to characterize subsurface thermal and hydrologic conditions along a permafrost thaw gradient. The APEX site is managed by the Bonanza Creek LTER (Long Term Ecological Research). In July 2018, soil temperature and moisture sensors were installed at six out of the nine instrument locations (APEX1, APEX2, APEX3, APEX4, APEX7, APEX9). Thermistors (PS103J2, US Sensor, Orange, CA, USA) were placed at depths of 5, 30, 60, 120, and 180 centimeters (cm) with three replicates. Three sites (APEX1, APEX4, APEX9) contained an additional single... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Bonanza Creek, Disturbance, Fairbanks North Star, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Hydrologic processes, Land Change Science Program, Permafrost, U.S. Geological Survey, USGS, environment, field monitoring stations, geoscientificInformation, hydrologic processes, permafrost, soil moisture, soil temperature, Fewer tags Magnetics Data Surface electrical resistivity tomography, magnetic, and gravity surveys were conducted in July 2017 in the greater East River Watershed near Crested Butte Colorado with a focused effort in Redwell Basin as part of a broader study of the role of bedrock groundwater in the hydrogeology of mineralized mountain watersheds. Approximately ten kilometers of total field magnetics data were acquired on July 29, 2017 with a Geometrics G-858 cesium vapor magnetometer that detects changes in deep (tens of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations. This data release includes the raw and processed magnetics data. They are provided as digital data, and data... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Brush Creek, Colorado, Crested Butte, East River, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Gothic, Gunnison County, MRP, Mineral Resources Program, Mount Emmons, Oh-be-joyful, Redwell Basin, U.S. Geological Survey, USGS, bouguer anomaly, electrical resistivity tomography, electromagnetic surveying, electromagnetics, environment, free-air anomaly, geophysics, geoscientificInformation, geospatial datasets, gravimeter measurement, gravitational field (earth), gravity, groundwater, hydrogeology, magnetic anomaly maps, magnetic field, magnetic surveying, magnetics, nuclear magnetic resonance, resistivity, water resources, Fewer tags Revised fault network for New Madrid seismic zone This dataset provides line work of an interpreted revised fault network in the New Madrid seismic zone, central United States. Tags: Arkansas, Missouri, Tennessee, faults, geoscientificInformation, All tags... ghsc, Fewer tags Ground Penetrating Radar data from West Fork of Dall Creek, AK 2019 The West Fork of Dall Creek is located ~100km southwest of Coldfoot, AK along the Dalton Highway, south of the Brooks Range. Five ground penetrating radar (GPR) profiles were collected on 4/4/2019 at the West Fork of Dall Creek in interior Alaska. The West Fork of Dall Creek is composed of unburned black spruce forest with a burn scar from the 2004 Dall City Fire. All collected profiles, other than the Central Midpoint Survey (CMP), transect the burn scar between start and end locations in unburned black spruce forest. Data were collected with a Sensors and Software pulseEKKO pro unit and 100 mHz antennas. Four of the lines were conducted as common offset surveys with manual data collection that employed a consistent... Categories: Data; Tags: Alaska, geophysics, permafrost Floating and Towed Transient Electromagnetic Surveys used to Characterize Hydrogeology underlying Rivers and Estuaries: March - December 2018 Surface and water-borne geophysical methods can provide information for the characterization of the subsurface structure of the earth for aquifer investigations. Floating and towed transient electromagnetic (FloaTEM and tTEM) surveys provide resistivity soundings of the subsurface, which can be related to lithology and hydrogeology. In the TEM method, a primary electrical current is cycled through a wire in a transmitter loop (Tx), which in turn produces a static primary magnetic field. When the current in the TX loop is abruptly terminated, secondary electrical currents are induced in the earth that move downward and outward decaying with time. The decay of the secondary electrical field is controlled by the subsurface... Categories: Data; Tags: Geophysics, Greenwood, Hydrology, Leflore County, MRVA, All tags... Mississippi, Mississippi Alluvial Plain, Mississippi River Valley Alluvial aquifer, Shellmound, Tallahatchie River, USGS Science Data Catalog (SDC), Water Resources, electromagnetic surveying, electromagnetics, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, oceans, resistivity, transient electromagnetics, water resources, water-borne, Fewer tags Alaska permafrost characterization: Geophysical and related field data collected from 2016-2017 Electrical resistivity tomography (ERT), downhole nuclear magnetic resonance (NMR), and manual permafrost-probe measurements were used to quantify permafrost characteristics along transects within several catchments in interior Alaska in late summer 2016 and 2017. Geophysical sites were chosen to coincide with additional soil, hydrologic, and geochemical measurements adjacent to various low-order streams and tributaries in a mix of burned and unburned watersheds in both silty and rocky environments. Data were collected in support of the Striegl-01 NASA ABoVE project, "Vulnerability of inland waters and the aquatic carbon cycle to changing permafrost and climate across boreal northwestern North America." Additional... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Active layer thickness, Alaska, Borehole nuclear magnetic resonance, Disturbance, Fire, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Hydrologic processes, Organic layer thickness, Permafrost, Resistivity profiling, Soil Sciences, Soils, USGS Science Data Catalog (SDC), environment, fires, geoscientificInformation, hydrologic processes, permafrost, resistivity, soil moisture, Fewer tags Electrical Resistivity Tomography Data collected in Alaska 2016-2017 Electrical resistivity tomography (ERT), downhole nuclear magnetic resonance (NMR), and manual permafrost-probe measurements were used to quantify permafrost characteristics along transects within several catchments in interior Alaska in late summer 2016 and 2017. Geophysical sites were chosen to coincide with additional soil, hydrologic, and geochemical measurements adjacent to various low-order streams and tributaries in a mix of burned and unburned watersheds in both silty and rocky environments. Data were collected in support of the Striegl-01 NASA ABoVE project, "Vulnerability of inland waters and the aquatic carbon cycle to changing permafrost and climate across boreal northwestern North America." Additional... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Active layer thickness, Alaska, Borehole nuclear magnetic resonance, Disturbance, Fire, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, Hydrologic processes, Organic layer thickness, Permafrost, Resistivity profiling, Soils, environment, fires, geoscientificInformation, hydrologic processes, permafrost, resistivity, soil moisture, Fewer tags Alaska permafrost characterization: Borehole Nuclear Magnetic Resonance Data & Models from 2019-2020 Borehole nuclear magnetic resonance (NMR) data were collected by the U.S. Geological Survey (USGS) at Big Trail Lake, a thermokarst lake outside of Fairbanks, Alaska, to quantify unfrozen water content and soil properties at select sites in and around the lake edge. In September 2019, NMR data were collected within two 2.3 m deep boreholes adjacent to the East and North perpendicular electrical resistivity survey lines. Manual permafrost-probe measurements of thaw depths were also collected. These two boreholes were logged a second time in late March 2020. Additional one-time NMR measurements of liquid water content were collected in September 2019 within the lakebed sediments (0-25 cm depth) in approximately 2.5... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Active layer thickness, Alaska, Big Trail Lake, Borehole nuclear magnetic resonance, Disturbance, All tags... Fairbanks North Star, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Hydrologic processes, Land Change Science Program, Permafrost, U.S. Geological Survey, USGS, environment, fires, geoscientificInformation, hydrologic processes, permafrost, soil moisture, Fewer tags Borehole Nuclear Magnetic Resonance Data Collected in Alaska 2016-2017 Electrical resistivity tomography (ERT), downhole nuclear magnetic resonance (NMR), and manual permafrost-probe measurements were used to quantify permafrost characteristics along transects within several catchments in interior Alaska in late summer 2016 and 2017. Geophysical sites were chosen to coincide with additional soil, hydrologic, and geochemical measurements adjacent to various low-order streams and tributaries in a mix of burned and unburned watersheds in both silty and rocky environments. Data were collected in support of the Striegl-01 NASA ABoVE project, "Vulnerability of inland waters and the aquatic carbon cycle to changing permafrost and climate across boreal northwestern North America." Additional... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Active layer thickness, Alaska, Borehole nuclear magnetic resonance, Disturbance, Fire, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, Hydrologic processes, Organic layer thickness, Permafrost, Resistivity profiling, Soils, environment, fires, geoscientificInformation, hydrologic processes, permafrost, resistivity, soil moisture, Fewer tags Geophysical and related field data from the West Fork of Dall Creek, AK 2017-2019 The West Fork of Dall Creek is located ~100km southwest of Coldfoot, AK along the Dalton Highway, south of the Brooks Range. The West Fork of Dall Creek is composed of unburned black spruce forest with a burn scar from the 2004 Dall City Fire. Multi-season, multi-method geophysical data were collected both within the burned and unburned areas. Geophysical techniques used include Nuculear Magnetic Resonance (NMR) and Ground Penetrating Radar (GPR) data. NMR data were collected with a down borehole Dart tool (Vista Clara Inc.). GPR data were collected with a Sensors and Software pulseEKKO pro unit and 100 mHz antennas and a high power (1000V) transmitter. Soil temperature data were collected from the unburned black... Tags: Alaska, Geophysics, Hydrology, USGS Science Data Catalog (SDC), geophysics, All tags... hydrology, permafrost, Fewer tags Scarps mapped on 1m lidar data along Crowleys Ridge This dataset provides line work of fault, fold, and unknown scarps mapped along the margins of Crowleys Ridge in the New Madrid seismic zone, Arkansas and Missouri. Categories: Data; Types: Shapefile; Tags: Arkansas, Missouri, National Elevation Dataset (NED), geomorphology, geoscientificInformation 1 2 3 »