Filters: Tags: {"type":"Theme"} (X) > Categories: Data (X) > partyWithName: Joshua J Caster (X)

Filters Date Range Past year (3) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Joel B Sankey U.S. Geological Survey U.S. Geological Survey - ScienceBase Joel A Unema Southwest Biological Science Center More... Tag Schemes None (79) USGS Thesaurus (66) ISO 19115 Topic Categories (22) USGS information products (5) ISO 19115 Topic Category (3) USGS Biocomplexity Thesaurus (3) USGS Metadata Identifier (1) Tags (with Type=Theme ) data release (5) biota (4) aeolian (3) climatologymeteorologyatmosphere (3) elevation (3) environment (3) geoscientificinformation (3) More... View Results as: JSON ATOM CSV

Threshold friction velocities for aeolian transport of river-sourced sand, with related moisture content, grain size, topographic, and wind data from Lees Ferry, Arizona These data were compiled to investigate the control of drying on the aeolian transport of river-sourced sand. Objectives of our study were to to examine aeolian sediment transport during a five-day period of low steady river flow on a river sandbar and adjacent aeolian dunefield. These data represent the observed and theoretical threshold fiction velocities for aeolian sediment transport, as well as the grain size, sediment moisture content, surface roughness and other characteristics of the sandbar and sand dune surfaces. These data were collected at a sandbar and aeolian sand dune along the Colorado River approximately 19 km downstream from Glen Canyon Dam at Lees Ferry, Arizona, USA from March 15 to 20, 2021.... Categories: Data; Tags: Arizona, Climatology, Colorado River, Ecology, Geography, All tags... Geomorphology, Glen Canyon, Glen Canyon Dam, Grand Canyon, Hydrology, Information Sciences, Lake Mead, Lake Powell, Lees Ferry, Marble Canyon, Remote Sensing, Sedimentology, USGS Science Data Catalog (SDC), aeolian, aeolian sediment transport, climatologyMeteorologyAtmosphere, data release, dune, elevation, environment, fluvial, geoscientificInformation, grain size, inlandWaters, lidar, location, modeling, observed threshold fiction velocities, river ecosystems, river systems, river-sourced sandsand, sand deposits, sand dune, sandbar, sediment, sediment moisture content, soil moisture, streamflow, surface roughness, theoretical threshold fiction velocities, unconsolidated deposits, wind, wind, wind erosion, wind speeds, Fewer tags Aerial imagery analysis and topographic change detection (digital surface models), field observations and topographic change (terrestrial lidar surveys), and 4-minute wind speed record data for an aeolian dune field near Lees Ferry, AZ These data were compiled for assessing how geomorphic changes measured as topographic differences from repeat surveys represent measured and modelled estimates of aeolian sediment transport and dune mobility. Objective(s) of our study were to investigate whether topographic changes can serve as a proxy for aeolian transport and sediment mobility in dunefield environments. This was accomplished by relating topographic changes to modeled and observed estimates of sediment transport and dune mobility over months to decades within a partially vegetated dunefield starved of upwind sediment supplies. We specifically tested if topographic changes measured as net and total volume changes and topographic surface roughness... Categories: Data; Tags: Arizona, Colorado River, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, All tags... Lees Ferry, Paria River, UAV imagery, USGS:658efe37d34e3265ab14d2c1, aeolian, aerial photography, bare sand, biocrust sand, biogeography, biological soil crusts, biota, change detection, climatologyMeteorologyAtmosphere, data release, disturbed, dune field, dune mobility, dune surface, elevation, environment, geomorphic change, geomorphology, gravel bar, gravel deposits, image collections, imageryBaseMapsEarthCover, in-field sediment transport data, land use and land cover, land use change, planningCadastre, remote sensing, repeat surveys, sediment transport, topographic differences, topographic surveys, topography, unconsolidated deposits, unoccupied aerial vehicle imagery, vegetated sand, vegetation, wind, wind strength, woody vegetation, Fewer tags Topographic data, historical peak-stage data, and 2D flow models for the lowermost Little Colorado River, Arizona, USA, 2017 These data were compiled to accompany flow modeling work on Little Colorado river above the mouth (USGS gage 09402300). The data include example models in FaSTMECH and SToRM solvers in the iRIC framework, topographic data collected by LiDAR and total station in June 2017, and high water marks from nine historic floods. Other data also include location and other information for control points and gage structures. Topographic data include ground topography collected by LiDAR and channel bathymetry collected by total station survey of a 2500 meter reach of the Little Colorado River ending near the confluence with the Colorado River. High water mark data were collected by USGS personnel using total station surveys and... Categories: Data; Tags: Arizona, Coconino County, Colorado River, Grand Canyon, Hydrology, All tags... LiDAR, Little Colorado River, Southwestern United States, USGS Science Data Catalog (SDC), United States, bathymetry, biota, elevation, flow modeling, location, topography, Fewer tags 1990-1992 Longitudinal Profile of the Lowermost 22 km of the Little Colorado River These data were compiled to accompany flow modeling work on Little Colorado river above the mouth (USGS gage 09402300). The data consist of a baseflow longitudinal profile of the lowermost 22 km of the Little Colorado River. This profile was digitized from 10 map plates from the Horizons Inc Aerial Mapping Professionals 1990-1992 Overflight data report produced for Glen Canyon Environmental Studies. Categories: Data; Tags: Little Colorado River, geomorphology Land cover classification data for wetland complexes at Dixie Meadows, Nevada from October 2015 to January 2022 These data were compiled to provide satellite remote sensing observations of landcover in the vicinity of wetlands fed by geothermal springs in Dixie Meadows, Nevada, USA. Objectives of the study were to map landcover of water, vegetation, and soil between October 5, 2015, and January 21, 2022, using available imagery from the Sentinel-2 mission. The U.S. Geological Survey's Southwest Biological Science Center (SBSC) and Grand Canyon Monitoring and Research Center (GCMRC) processed 110 Sentinel-2 satellite images representing bottom of atmosphere surface reflectance and classified them within Google Earth Engine (GEE) using threshold values of the Green Normalized Difference Vegetation Index (gNDVI) and its inverse... Categories: Data; Tags: Bureau of Land Management Lands, Churchill County, Department of Defense Lands, Dixie Meadows, Dixie Valley, All tags... Fallon, Green Normalized Difference Vegetation Index, Humboldt salt marsh, Naval Air Station Fallon, Nevada, Sentinel-2 satellite images, Stillwater Range, USGS Science Data Catalog (SDC), aquatic biology, aquatic ecosystems, aquatic vegetation, biogeography, biota, bottom of atmosphere surface reflectance, classified image data, data release, dense green vegetation, dry soil with sparse upland vegetation, ecology, emergent, gNDVI, geoscientificInformation, geothermal resources, geothermal springs, habitats, hydrology, image analysis, image collections, imageryBaseMapsEarthCover, inlandWaters, land use change, landcover, mixed shallow surface water, saturated soil, and vegetation, moist soil with sparse or small vegetation, open water, raster data, remote sensing, satellite imagery, shapefile data, soil resources, upland, vegetation, water resources, wetland complex, wetland ecosystems, Fewer tags Soil surface properties and roughness data at two experimental restoration sites within the Southwestern USA This data release presents data used for analyzing spatial and temporal differences in soil surface roughness within selected biocrust communities. These records were collected by ground-based lidar for 121, 1m x 3m soil plots with biological soil crusts (biocrusts). Roughness was estimated from 5 mm resolution data (CloudCompare v. 2.10.2, 2019) for two Great Basin Desert sites (UTTR-1; UTTR-2) in December 2015 and one Chihuahuan Desert site (JER) in February 2016. Data were again collected in June 2018 for UTTR-1 and UTTR-2. Additional field and laboratory data were included within this study to understand differences in soil surface roughness between UTTR and JER as well as between the 2016 and 2018 surveys at... Categories: Data; Tags: 5 mm resolution, Chihuahuan Desert, Ecology, Geography, Geomorphology, All tags... Great Basin, Great Basin Desert, Hill Air Force Base, Information Sciences, Jornada Experimental Range, Las Cruces, New Mexico, Remote Sensing, Salt Lake City, Soil Sciences, USGS Science Data Catalog (SDC), Utah, biocrust, biological soil crusts, biological treatment, biota, data release, digital point cloud, ecosystem disturbance, experimental restoration treatments, field data, field experiments, field inventory and monitoring, field methods, geoscientificInformation, ground-based lidar, habitat alteration and disturbance, laboratory data, laboratory experiments, laboratory methods, lidar, plot sampling, remediation, soil morphology, soil plots, soil resources, soil surface roughness, southwestern United States, Fewer tags Aeolian and drainage classification data for various archaeological sites in Grand Canyon National Park along the Colorado River from 1973 to 2022 These data were compiled to assess the risk of erosion to archaeological site preservation. The objective of the study is to evaluate changes in archaeological site condition over time as a function of two geomorphology based conceptual models that evaluate the extent to which sites are potentially affected by 1) erosion from gullies, and 2) wind-driven (aeolian) supply of river-sourced sand, respectively. These data represent the results of two classification metrics, based on the two conceptual models, applied to a population of 362 archaeological sites over multiple decades. Both conceptual models numerically rank geomorphic conditions with class values of 1 representing the best potential for archaeological... Categories: Data; Tags: Arizona, Colorado River, Geography, Geomorphology, Glen Canyon Dam, All tags... Grand Canyon National Park, Hydrology, Information Sciences, Remote Sensing, Soil Sciences, USGS Science Data Catalog (SDC), aeolian, aerial photography, archaeological landscapes, archaeological site preservation, archaeological sites, archaeology, baseline data, classification metrics, climatologyMeteorologyAtmosphere, conceptual models, data release, ecological processes, environment, erosion, field inventory and monitoring, geomorphic conditions, geomorphology, geoscientificInformation, gully, inlandWaters, modeling, multidecadal, natural processes, policies and regulations, precipitation (atmospheric), rainfall runoff, regulated flows, risk, river regulation, river-sourced sand, runoff, temporal resolution, terminologies and classifications, Fewer tags