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Magnetotelluric sounding data, station 12, East-Central Tooele County, Utah, 2003 This dataset includes the magnetotelluric (MT) sounding data collected in 2003 along a north-south profile west of Tooele, Utah. It is important to know whether major mining districts in the Northern Nevada Gold Province are underlain by rocks of the Archean Wyoming craton, which are known to contain orogenic gold deposits, or by accreted rocks of the Paleoproterozoic Mojave province. It is also important to know the location and orientation of the Archean/Proterozoic suture zone between these provinces as well as major basement structures within these terranes because they may influence subsequent patterns of sedimentation, deformation, magmatism, and hydrothermal activity. This study was funded by the U.S. Geological... Tags: Archean Wyoming craton, CGGSC, Cedar Mountains, Crustal Geophysics and Geochemistry Science Center, Dugway Proving Grounds, All tags... Electromagnetic surveying, GPS measurement, Geophysics, Gold Deposits, Gold Mining, Great Basin, Great Salt Lake, Great Salt Lake Desert, Juab County, Lakeside Mountains, Lakeside Valley, MRP, MT, Magnetic field (earth), Magnetic surveying, Mineral Resources Program, Mojave province, Northern Nevada Gold Province, Onaqui Mountains, Sheeprock Mountains, Simpson Mountains, Skull Valley, Skull Valley Reservation, Stansbury Mountains, Tooele, Tooele Army Depot, Uinta National Forest, Utah, Utah Test and Training Range, Vernon, Wasatch National Forest, apparent resistivity, aquifer, deformation, geoscientificinformation, hydrothermal activity, impedance, impedance phase, impedance strike, localized mineralization, magmatism, magnetotelluric, regional fluid flow, sedimentation, sounding, suture zone, tipper, Fewer tags Magnetotelluric sounding data, station 1, East-Central Tooele County, Utah, 2003 This dataset includes the magnetotelluric (MT) sounding data collected in 2003 along a north-south profile west of Tooele, Utah. It is important to know whether major mining districts in the Northern Nevada Gold Province are underlain by rocks of the Archean Wyoming craton, which are known to contain orogenic gold deposits, or by accreted rocks of the Paleoproterozoic Mojave province. It is also important to know the location and orientation of the Archean/Proterozoic suture zone between these provinces as well as major basement structures within these terranes because they may influence subsequent patterns of sedimentation, deformation, magmatism, and hydrothermal activity. This study was funded by the U.S. Geological... Tags: Archean Wyoming craton, CGGSC, Cedar Mountains, Crustal Geophysics and Geochemistry Science Center, Dugway Proving Grounds, All tags... Electromagnetic surveying, GPS measurement, Geophysics, Gold Deposits, Gold Mining, Great Basin, Great Salt Lake, Great Salt Lake Desert, Lakeside Mountains, Lakeside Valley, MRP, MT, Magnetic field (earth), Magnetic surveying, Mineral Resources Program, Mojave province, Northern Nevada Gold Province, Onaqui Mountains, Sheeprock Mountains, Simpson Mountains, Skull Valley, Skull Valley Reservation, Stansbury Mountains, Tooele, Tooele Army Depot, Tooele County, Uinta National Forest, Utah, Utah Test and Training Range, Vernon, Wasatch National Forest, apparent resistivity, aquifer, deformation, geoscientificinformation, hydrothermal activity, impedance, impedance phase, impedance strike, localized mineralization, magmatism, magnetotelluric, regional fluid flow, sedimentation, sounding, suture zone, tipper, Fewer tags Geochemical analysis of seeps along the Queen Charlotte Fault Geochemical analyses of authigenic carbonates, bivalves, and pore fluids were performed on samples collected from seep fields along the Queen Charlotte Fault, a right lateral transform boundary that separates the Pacific and North American tectonic plates. Samples were collected using grab samplers and piston cores, and were collected during three different research cruises in 2011, 2015, and 2017. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Haida Gwaii, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, Physical/Chemical Features, Quaternary, Queen Charlotte, U.S. Geological Survey, USGS, chemical analysis, chemosynthesis, geochemistry, geoscientificInformation, grab sampling, light stable isotope analysis, marine chemistry, methanogens, mollusks, paleoceanography, sedimentation, specimen collecting, Fewer tags Characterization of seafloor photographs near the mouth of the Elwha River during the first two years of dam removal (2011-2013) We characterized seafloor sediment conditions near the mouth of the Elwha River from underwater photographs taken every four hours from September 2011 to December 2013. A digital camera was affixed to a tripod that was deployed in approximately 10 meters of water (Tripod location from September 2011 to April 2013: 48.15333, -123.55931; tripod location from April 2013 to December 2013: 48.15407, -123.55444). Each photograph was qualitatively characterized as one of six categories: (1) base, or no sediment; (2) low sediment; (3) medium sediment; (4) high sediment; (5) turbid; or (6) kelp. For base conditions, no sediment was present on the seafloor. Low sediment conditions were characterized by a light dusting of... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clallam County, Elwha River, Olympic Peninsula, Remote Sensing, State of Washington, All tags... Strait of Juan de Fuca, dam removal, oceans, photography, sediment, sedimentation, sedimentation, substrate, time series datasets, underwater photography, Fewer tags Lidar point cloud data for Cabeza Prieta National Wildlife Refuge (CPNWR), Arizona, February 2022 These data were compiled for Cabeza Prieta National Wildlife Refuge (CPNWR) in southern Arizona, to support managment efforts of water resources and wildlife conservation. Objective(s) of our study were to 1) measure water storage capacity at select stage heights in three tanks (also termed tinajas), 2) build a stage storage model to help CPNWR staff accurately estimate water volumes throughout the year, and 3) collect topographic data adjacent to the tanks as a means to help connect these survey data to past or future work. These data represent high-resolution (sub-meter) ground based lidar measurements used to meet these objectives and are provided as: processed lidar files (point clouds), rasters (digital elevation... Tags: Ajo, Arizona, Buckhorn Tank, Cabeza Prieta National Wildlife Refuge, Eagle Tank, All tags... Senita Tank, Southern Arizona, conservation, data release, digital elevation models, elevation, elevation surface, environment, imageryBaseMapsEarthCover, inlandWaters, lidar, lidar data, lidar point cloud, natural resource management, raster data, remote sensing, sedimentation, shapefiles, stage storage, surface model, three-dimensional model, tinaja, topographic maps, topography, vector data, volume, water resources, water storage, water surface area, wildlife management, wildlife tank, Fewer tags 1992 digital surface model Malakoff Diggins State Historic Park, California One of the largest hydraulic mines (1.6 km2) is located in California’s Sierra Nevada within the Humbug Creek watershed and Malakoff Diggins State Historic Park (MDSHP). MDSHP’s denuded and dissected landscape is composed of weathered Eocene auriferous sediments susceptible to chronic rill and gully erosion whereas block failures and debris flows occur in more cohesive terrain. This data release includes a 1992 digital surface model (DSM), 1992 orthophoto mosaic, masked orthophoto of the study area, 1992 ground cover classification, and 1992 pruned DSM with the vegetation bias removed. Stereo-photogrammetry was used to create a 1992 digital surface model (DSM) and orthophoto mosaic from archived aerial photographs.... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, Raster; Tags: Humbug Creek, Malakoff Diggins State Historic Park, aerial photography, digital elevation models, elevation, All tags... erosion, orthomosaic, photogrammetry, placer mine, remote sensing, sedimentation, Fewer tags Magnetotelluric sounding data, station 3, East-Central Tooele County, Utah, 2003 This dataset includes the magnetotelluric (MT) sounding data collected in 2003 along a north-south profile west of Tooele, Utah. It is important to know whether major mining districts in the Northern Nevada Gold Province are underlain by rocks of the Archean Wyoming craton, which are known to contain orogenic gold deposits, or by accreted rocks of the Paleoproterozoic Mojave province. It is also important to know the location and orientation of the Archean/Proterozoic suture zone between these provinces as well as major basement structures within these terranes because they may influence subsequent patterns of sedimentation, deformation, magmatism, and hydrothermal activity. This study was funded by the U.S. Geological... Tags: Archean Wyoming craton, CGGSC, Cedar Mountains, Crustal Geophysics and Geochemistry Science Center, Dugway Proving Grounds, All tags... Electromagnetic surveying, GPS measurement, Geophysics, Gold Deposits, Gold Mining, Great Basin, Great Salt Lake, Great Salt Lake Desert, Lakeside Mountains, Lakeside Valley, MRP, MT, Magnetic field (earth), Magnetic surveying, Mineral Resources Program, Mojave province, Northern Nevada Gold Province, Onaqui Mountains, Sheeprock Mountains, Simpson Mountains, Skull Valley, Skull Valley Reservation, Stansbury Mountains, Tooele, Tooele Army Depot, Tooele County, Uinta National Forest, Utah, Utah Test and Training Range, Vernon, Wasatch National Forest, apparent resistivity, aquifer, deformation, geoscientificinformation, hydrothermal activity, impedance, impedance phase, impedance strike, localized mineralization, magmatism, magnetotelluric, regional fluid flow, sedimentation, sounding, suture zone, tipper, Fewer tags Geomorphic Map Malakoff Diggins State Historic Park, California One of the largest hydraulic mines (1.6 km2) is located in California’s Sierra Nevada within the Humbug Creek watershed and Malakoff Diggins State Historic Park (MDSHP). MDSHP’s denuded and dissected landscape is composed of weathered Eocene auriferous sediments susceptible to chronic rill and gully erosion whereas block failures and debris flows occur in more cohesive terrain. This data release includes a 2014 digital elevation model (DEM), a study area boundary, and a geomorphic map. The 2014 DEM was derived from an available aerial LiDAR dataset collected in 2014 by the California Department of Conservation. The geomorphic map was derived for the study area from using a multi-scale spatial analysis. A topographic... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Humbug Creek, Malakoff Diggins State Historic Park, digital elevation models, elevation, erosion, All tags... geomorphology, placer mine, remote sensing, sedimentation, Fewer tags Discrete Classifications of Landforms (Geomorphons) for Anne Arundel County, Maryland in 2017 This data release is part of a larger data release including data collected in the pursuit of identifying pre- and post-colonial riparian ecosystems found throughout Anne Arundel County, Maryland, USA. A single raster file is included, and represents a topological classification of the entire county according to a hydrologically conditioned Digital Elevation Model (DEM). These data were generated through the use of r.geomorphon, a GRASS GIS toolkit, to classify local terrain conditions into one of ten distinct landforms called geomorphons. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Anne Arundel, Maryland, Upper Chesapeake Bay, carbon-14 analysis, faunal and floral census (microscopic), All tags... geoscientificInformation, ground penetrating radar, morphology (biological), physiographic features, sedimentation, x-ray fluorescence, Fewer tags Topographic survey data from Moenkopi Wash, AZ These data were compiled to perform analyses of hydrologic change, changes in sediment transport, and channel change within Moenkopi Wash, Arizona. Objective(s) of our study were to quantify the magnitude and timing of changes in hydrology, sediment transport, and channel form within Moenkopi Wash and to determine the downstream effects of those changes on sediment delivery downstream to the Little Colorado River, and the Colorado River. These data represent instantaneous discharge records, suspended-sediment sample records, topographic survey data, historical aerial imagery, and channel polygons and centerlines mapped on the historical imagery. Instantaneous discharge records in this study began in 1926 and extend... Categories: Data; Tags: Arizona, Cameron, Colorado River, Little Colorado River, Moenkopi, All tags... Moenkopi Wash, National Aerial Imagery Program, National Agricultural Program, Shonto, Tuba City, U.S. Army Map Service, U.S. Geological Survey, active channel boundaries, aerial imagery data, aerial photography, biogeomorphic feedbacks, biota, channel boundaries, channel centerlines, channel change, channel form, channel narrowing, channel polygons, cross-section shape, data release, dryland rivers, field activity logs, field inventory and monitoring, field surveys, floods, geomorphology, historical aerial imagery, hydrologic change, hydrology, image collections, image mosaics, imageryBaseMapsEarthCover, inlandWaters, instantaneous discharge records, northern Arizona, orthoimagery, riparian vegetation, sediment delivery, sediment geochemistry, sediment transport, sedimentation, sedimentology, stream discharge, stream gage locations, stream gages, stream-gage measurement, suspended material (water), suspended-sediment sample records, topographic survey data, vegetation, wetland ecosystems, Fewer tags Stage contour data for Cabeza Prieta National Wildlife Refuge (CPNWR), Arizona, February 2022 These data were compiled for Cabeza Prieta National Wildlife Refuge (CPNWR) in southern Arizona, to support managment efforts of water resources and wildlife conservation. Objective(s) of our study were to 1) measure water storage capacity at select stage heights in three tanks (also termed tinajas), 2) build a stage storage model to help CPNWR staff accurately estimate water volumes throughout the year, and 3) collect topographic data adjacent to the tanks as a means to help connect these survey data to past or future work. These data represent high-resolution (sub-meter) ground based lidar measurements used to meet these objectives and are provided as: processed lidar files (point clouds), rasters (digital elevation... Tags: Ajo, Arizona, Buckhorn Tank, Cabeza Prieta National Wildlife Refuge, Eagle Tank, All tags... Senita Tank, Southern Arizona, conservation, data release, elevation, elevation surface, environment, imageryBaseMapsEarthCover, inlandWaters, natural resource management, remote sensing, sedimentation, shapefiles, stage storage, tinaja, topographic maps, topography, vector data, volume, water resources, water storage, water surface area, wildlife management, wildlife tank, Fewer tags Field estimated floodplain and bank flux and toolbox geomorphic metrics for field sites in Difficult Run, VA A cvs file containing field datasets used to develop regression models to predict sediment and nutrient retention services for stream within the Difficult Run watershed. Field measurements of floodplain deposition and bank erosion were provided in previously published datasets from Hupp et al. (2013) and Gellis et al. (2017). At each field site 3-5 nearby cross-sections from the Toolbox where used to represent the floodplain and streambank sampling locations at the field sites. Metrics derived from the Toolbox are provided in this data table. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Difficult Run, Fairfax County, Flood plains, Fluvial morphology, Virginia, All tags... bulk density, geomorphology, inlandWaters, nitrogen, phosphorus, sedimentation, Fewer tags Extensive Mapping of Bering Sea Coastal Change by Landsat Time Series Trend Analysis, 1985-2012 The project will complete an extensive mapping of coastal change along the entire coastline of the Western Alaska Landscape Conservation Cooperative (LCC). The work will provide important baseline information on the distribution and magnitude of landscape changes over the past 41 years. The extent of change to the coastline and to coastal features, such as spits, barrier islands, estuaries, tidal guts and lagoons, is known to be substantial in some areas along the coast (e.g., portions of the Yukon–Kuskokwim Delta), although the extent of change along the full Bering Sea coast is not well documented. With this analysis, changes can be summarized for different land ownerships or other units to assess the extent of... Categories: Data, Project; Tags: BARRIER ISLANDS, BARRIER ISLANDS, COASTAL LANDFORMS/PROCESSES, COASTAL LANDFORMS/PROCESSES, DEGRADATION, All tags... DEGRADATION, DELTAS, DELTAS, DEPOSITION, DEPOSITION, Data Management and Integration, Datasets/Database, Decision Support, EROSION, EROSION, ESTUARIES, ESTUARIES, FLUVIAL LANDFORMS/PROCESSES, FLUVIAL LANDFORMS/PROCESSES, Federal resource managers, INLETS, INLETS, KARST LANDFORMS/PROCESSES, KARST LANDFORMS/PROCESSES, LACUSTRINE PLAIN, LACUSTRINE PLAIN, LAGOONS, LAGOONS, LANDSCAPE PROCESSES, LANDSCAPE PROCESSES, LCC Network Science Catalog, LONGSHORE CURRENTS, LONGSHORE CURRENTS, MEANDER, MEANDER, Map, PERMAFROST, PERMAFROST, Presentation, Project, RIVER, RIVER, ROCKY COASTS, ROCKY COASTS, Regional & county planners, Report, SEDIMENT TRANSPORT, SEDIMENT TRANSPORT, SEDIMENTATION, SEDIMENTATION, SHORELINES, SHORELINES, STORM SURGE, STORM SURGE, SUBSIDENCE, SUBSIDENCE, SUBSURFACE DRAINAGE, SUBSURFACE DRAINAGE, Tribes, User Manual, VISUALIZATION/IMAGE PROCESSING, VISUALIZATION/IMAGE PROCESSING, Vulnerability Assessment, completed, environment, environment, Fewer tags Magnetotelluric sounding data, station 2, East-Central Tooele County, Utah, 2003 This dataset includes the magnetotelluric (MT) sounding data collected in 2003 along a north-south profile west of Tooele, Utah. It is important to know whether major mining districts in the Northern Nevada Gold Province are underlain by rocks of the Archean Wyoming craton, which are known to contain orogenic gold deposits, or by accreted rocks of the Paleoproterozoic Mojave province. It is also important to know the location and orientation of the Archean/Proterozoic suture zone between these provinces as well as major basement structures within these terranes because they may influence subsequent patterns of sedimentation, deformation, magmatism, and hydrothermal activity. This study was funded by the U.S. Geological... Tags: Archean Wyoming craton, CGGSC, Cedar Mountains, Crustal Geophysics and Geochemistry Science Center, Dugway Proving Grounds, All tags... Electromagnetic surveying, GPS measurement, Geophysics, Gold Deposits, Gold Mining, Great Basin, Great Salt Lake, Great Salt Lake Desert, Lakeside Mountains, Lakeside Valley, MRP, MT, Magnetic field (earth), Magnetic surveying, Mineral Resources Program, Mojave province, Northern Nevada Gold Province, Onaqui Mountains, Sheeprock Mountains, Simpson Mountains, Skull Valley, Skull Valley Reservation, Stansbury Mountains, Tooele, Tooele Army Depot, Tooele County, Uinta National Forest, Utah, Utah Test and Training Range, Vernon, Wasatch National Forest, apparent resistivity, aquifer, deformation, geoscientificinformation, hydrothermal activity, impedance, impedance phase, impedance strike, localized mineralization, magmatism, magnetotelluric, regional fluid flow, sedimentation, sounding, suture zone, tipper, Fewer tags 2014 DEM Malakoff Diggins State Historic Park, California One of the largest hydraulic mines (1.6 km2) is located in California’s Sierra Nevada within the Humbug Creek watershed and Malakoff Diggins State Historic Park (MDSHP). MDSHP’s denuded and dissected landscape is composed of weathered Eocene auriferous sediments susceptible to chronic rill and gully erosion whereas block failures and debris flows occur in more cohesive terrain. This data release includes a 2014 digital elevation model (DEM), a study area boundary, and a geomorphic map. The 2014 DEM was derived from an available aerial LiDAR dataset collected in 2014 by the California Department of Conservation. The geomorphic map was derived for the study area from using a multi-scale spatial analysis. A topographic... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, Raster; Tags: Humbug Creek, Malakoff Diggins State Historic Park, digital elevation models, elevation, erosion, All tags... placer mine, remote sensing, sedimentation, Fewer tags Implications of climate change for avian conservation in Great Plains landscapes Funded project resulted in 6 publications covering various aspects related to shorebird/grassland bird migration, climate and nesting success in the great plains region. Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2010, Avian, Avian, BIRDS, CLIMATE CHANGE IMPACT ASSESSMENT MODELS, All tags... CO-01, CO-02, CO-03, CO-04, CO-05, CO-06, CO-07, Climate Change, Climate Change, Climatic Change, Climatic Change, Colorado, Conservation Planning, FY 2010, FY 2010, Federal resource managers, GPLCC, GPLCC, GRASSLANDS, Grassland Birds, Grassland Birds, Great Plains, Great Plains Landscape Conservation Cooperative, Habitat Models, Habitat Models, KS-01, KS-02, KS-04, Kansas, LCC, LCC Network Science Catalog, Mountain Plover (Charadrius montanus), Mountain Plover (Charadrius montanus), NE-01, NE-03, NM-02, NM-03, Native Grassland, Native Grassland, Nebraska, New Mexico, OK-03, OK-04, OK-05, Oklahoma, Playas, Playas, Policy makers & regulators, Population & Habitat Evaluation/Projection, Project, Publication, Report, SD-00, Sedimentation, Sedimentation, Shorebirds, Shorebirds, South Dakota, State agencies, TX-11, TX-13, TX-19, TX-23, Texas, WETLANDS, WY-00, Wetlands, Wetlands, Wyoming, biota, completed, environment, Fewer tags Magnetotelluric sounding data, station 11, East-Central Tooele County, Utah, 2003 This dataset includes the magnetotelluric (MT) sounding data collected in 2003 along a north-south profile west of Tooele, Utah. It is important to know whether major mining districts in the Northern Nevada Gold Province are underlain by rocks of the Archean Wyoming craton, which are known to contain orogenic gold deposits, or by accreted rocks of the Paleoproterozoic Mojave province. It is also important to know the location and orientation of the Archean/Proterozoic suture zone between these provinces as well as major basement structures within these terranes because they may influence subsequent patterns of sedimentation, deformation, magmatism, and hydrothermal activity. This study was funded by the U.S. Geological... Tags: Archean Wyoming craton, CGGSC, Cedar Mountains, Crustal Geophysics and Geochemistry Science Center, Dugway Proving Grounds, All tags... Electromagnetic surveying, GPS measurement, Geophysics, Gold Deposits, Gold Mining, Great Basin, Great Salt Lake, Great Salt Lake Desert, Lakeside Mountains, Lakeside Valley, MRP, MT, Magnetic field (earth), Magnetic surveying, Mineral Resources Program, Mojave province, Northern Nevada Gold Province, Onaqui Mountains, Sheeprock Mountains, Simpson Mountains, Skull Valley, Skull Valley Reservation, Stansbury Mountains, Tooele, Tooele Army Depot, Tooele County, Uinta National Forest, Utah, Utah Test and Training Range, Vernon, Wasatch National Forest, apparent resistivity, aquifer, deformation, geoscientificinformation, hydrothermal activity, impedance, impedance phase, impedance strike, localized mineralization, magmatism, magnetotelluric, regional fluid flow, sedimentation, sounding, suture zone, tipper, Fewer tags Magnetotelluric sounding data, station 9, East-Central Tooele County, Utah, 2003 This dataset includes the magnetotelluric (MT) sounding data collected in 2003 along a north-south profile west of Tooele, Utah. It is important to know whether major mining districts in the Northern Nevada Gold Province are underlain by rocks of the Archean Wyoming craton, which are known to contain orogenic gold deposits, or by accreted rocks of the Paleoproterozoic Mojave province. It is also important to know the location and orientation of the Archean/Proterozoic suture zone between these provinces as well as major basement structures within these terranes because they may influence subsequent patterns of sedimentation, deformation, magmatism, and hydrothermal activity. This study was funded by the U.S. Geological... Tags: Archean Wyoming craton, CGGSC, Cedar Mountains, Crustal Geophysics and Geochemistry Science Center, Dugway Proving Grounds, All tags... Electromagnetic surveying, GPS measurement, Geophysics, Gold Deposits, Gold Mining, Great Basin, Great Salt Lake, Great Salt Lake Desert, Lakeside Mountains, Lakeside Valley, MRP, MT, Magnetic field (earth), Magnetic surveying, Mineral Resources Program, Mojave province, Northern Nevada Gold Province, Onaqui Mountains, Sheeprock Mountains, Simpson Mountains, Skull Valley, Skull Valley Reservation, Stansbury Mountains, Tooele, Tooele Army Depot, Tooele County, Uinta National Forest, Utah, Utah Test and Training Range, Vernon, Wasatch National Forest, apparent resistivity, aquifer, deformation, geoscientificinformation, hydrothermal activity, impedance, impedance phase, impedance strike, localized mineralization, magmatism, magnetotelluric, regional fluid flow, sedimentation, sounding, suture zone, tipper, Fewer tags Surface-sediment grain-size distributions from the Elwha River delta, Washington, September 2013 This portion of the USGS data release presents sediment grain-size data from samples collected on the Elwha River delta, Washington, in September 2013 (USGS Field Activity Number W-07-13-PS). Surface sediment was sampled using a small ponar, or 'grab', sampler on September 19, 2013 from the R/V Frontier at a total of 62 locations in water depths between about 1 and 12 m around the delta. An additional 21 sediment samples were collected between September 16 and September 19, 2013 at low tide from intertidal locations on the delta. A handheld GNSS receiver was used to determine the locations of sediment samples. The grain-size distributions of samples were determined in the USGS Pacific Coastal and Marine Science... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clallam County, Elwha River, GPS (Global Positioning System), Global Positioning System (GPS) observations, Olympic Peninsula, All tags... Strait of Juan de Fuca, Substrate, grain-size analysis, ocean processes, oceans, sediment, sediment transport, sedimentation, Fewer tags Fluvial Erosion Hazard Analysis Data from the Marengo River Watershed, Ashland County, Wisconsin An extreme flood in 2016 caused widespread culvert blockages and road failures across northern Wisconsin, including extensive damage along steep tributaries and ravines in the Marengo River watershed. Along with the flooding, there were fluvial erosion hazards (FEH) associated with a large amount of erosion in headwater areas. Of special concern were FEHs associated with gullying, loss of wetland storage, and valley-side mass wasting. In 2020, a pilot study was begun to map and classify ephemeral and perennial streams and wetlands in terms of their susceptibility to fluvial erosion hazards. This study combines rapid geomorphic field assessments of river corridor erosion and coupled sediment and debris delivery with... Tags: Ashland, Bad-Montreal, Great Lakes, North America, Southwestern Lake Superior, All tags... United States, Wisconsin, erosion, geomorphology, geoscientificInformation, sediment transport, sedimentation, slope processes, Fewer tags 1 2 3 »