Filters: Tags: Glen Canyon National Recreation Area (X) > partyWithName: Joel B Sankey (X)

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Classified land cover and vegetation canopy cover 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... Tags: Arizona, Colorado River, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, All tags... Lees Ferry, Paria River, UAV imagery, USGS:658efcd9d34e3265ab14d2bc, 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 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 Compilation of topographic data, aerial imagery, and land cover classification, collected between 1984 to 2021 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... Tags: Arizona, Botany, Colorado River, Ecology, Geography, All tags... Geomorphology, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, Information Sciences, Lees Ferry, Paria River, Remote Sensing, UAV imagery, USGS Science Data Catalog (SDC), USGS:65677123d34e17319ded0a33, 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 Riparian species vegetation classification data for the Colorado River within Grand Canyon derived from 2013 airborne imagery These data are a species-level classification map of riparian vegetation in the Colorado River riparian corridor in Grand Canyon, Arizona, USA. The classification is derived from 0.2 m pixel resolution multispectral aerial imagery acquired in May 2013. The classification spans the riparian zone of the river corridor between Glen Canyon Dam near Page, Arizona, and Lake Mead at Pearce Ferry, Arizona. The classification is divided into 5 distinct reaches of the river: Glen Canyon, Marble Canyon, Eastern Grand Canyon, Western Grand Canyon upstream of Diamond Creek, and Western Grand Canyon downstream of Diamond Creek. The method used for classification was a combination of supervised Classification And Regression Tree... Tags: Arizona, Botany, Colorado River, Diamond Creek, Ecology, All tags... Geography, Glen Canyon, Glen Canyon Dam, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, Information Sciences, Lake Mead, Lake Powell, Lees Ferry, Little Colorado River, Marble Canyon, National Canyon, Pearce Ferry, Remote Sensing, USGS Science Data Catalog (SDC), aerial photography, botany, decision support methods, geospatial datasets, image analysis, image mosaics, invasive species, land use and land cover, multispectral imaging, native species, plants (organisms), regression analysis, remote sensing, scientific interpretation, spatial analysis, streamflow, vegetation, Fewer tags Topographic, aerial imagery, and unoccupied aerial vehicle (UAV) 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... Tags: Arizona, Colorado River, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, All tags... Lees Ferry, Paria River, UAV imagery, USGS:658ef99fd34e3265ab14d2a9, 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 Meteorological Data for Selected Sites along the Colorado River Corridor, Arizona, 2014-2015 These data are records collected from six automated weather stations in operation between January 1, 2014 and December 31, 2015 within the Colorado River Corridor of Grand Canyon National Park and Glen Canyon National Recreation Area. Data collection locations, equipment configurations and methods follow those of the original report (OFR 2014-1247). These files are 4-minute interval data for each of the automated weather stations, tab separated by parameter (wind direction, wind speed, wind gusts, air temperature, relative humidity, barometric pressure, and rainfall). Climatic conditions during the reporting period were warm and dry early in 2014 and transitioned to average to slightly above precipitation from mid-2014... Tags: 4-minute interval data, Arizona, Colorado River, Colorado River Corridor, El Niño-Southern Oscillation, All tags... Glen Canyon, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, USGS Science Data Catalog (SDC), air temperature, automated weather station, barometric pressure, climate, climatic conditions, climatologyMeteorologyAtmosphere, meteorology, precipitation measurement, rainfall, rainfall measurement, relative humidity, temperature, temperature measurement, weather monitoring, weather observations, weather stations, wind, wind direction, wind gusts, wind speed, Fewer tags Digital elevation models and water surface profiles for the Colorado River in Cataract Canyon, Canyonlands National Park and Glen Canyon National Recreation Area, Utah These data consist of measurements of riverbed and floodplain bathymetry and topography, measurements of water-surface elevations and ancillary data. These data are specific to the corridor of the Colorado River from the confluence of the Green and Colorado Rivers near Spanish Bottom, Utah in Canyonlands National Park to the confluence with the Dirty Devil River in Glen Canyon National Recreation Area. The time period for these data are 2020 and 2021. The raster data are digital elevation models (DEMs) for segments of the Colorado River in Canyonlands National Park, Utah and include both bathymetric and topographic data. The data collected in 2020 consist of bathymetric and topographic data for segments of the Colorado... Tags: Arizona, Canyonlands National Park, Cataract Canyon, Colorado River, Dirty Devil River, All tags... Ecology, Geography, Geomorphology, Glen Canyon National Recreation Area, Green River, Gypsum Canyon, Hydrology, Information Sciences, Lake Powell, Remote Sensing, Spanish Bottom, USGS Science Data Catalog (SDC), Utah, Water Resources, bathymetric data, bathymetry, bathymetry measurement, channel morphology, climate change, data release, digital elevation models, droughts, effects of climate change, effects of dams, elevation, floodplain, fluvial geomorphology, imageryBaseMapsEarthCover, lidar, longitudinal profiles, multibeam sonar, multibeam sonar, profiles, raster data, reservoirs, river channel change, river reaches, river systems, riverbed, streamflow, streamflow modeling, streamflow regulations, topographic data, topographic maps, topography, water-surface elevations, Fewer tags Sediment budget data for Lees Ferry dune field, February-May 2019 These data were compiled to enable estimation of aeolian dune field sediment budgets calculated using remote sensing methods. The objective of the study was to evaluate sediment budgets calculated for the Lees Ferry dune field in Grand Canyon, Earth as a terrestrial analog for aeolian dune fields in Valles Marineris, Mars. These data represent digital elevation models (DEM) of the topography of the Lees Ferry dune field in February and May, 2019, respectively. These data were collected with an Uncrewed Aerial Vehicle (UAV) remote sensing survey conducted on February 28th and then repeated on May 2nd, 2019. The images acquired with the UAV surveys were processed with photogrammetric modelling to produce the DEMs.... Tags: 10 cm grid cell, Arizona, Colorado River, DEM, Geography, All tags... Glen Canyon National Recreation Area, Grand Canyon, Information Sciences, Lees Ferry, Remote Sensing, Sedimentology, UAV, USGS Science Data Catalog (SDC), USGS:6291031bd34ef70cdba45356, United States, Vermillion Cliffs National Monument, aeolian, analog, continuous elevation surface, data release, digital elevation models, dune, dune field, elevation, eolian, geoscientificInformation, imageryBaseMapsEarthCover, in-situ, photogrammetric modeling, remote sensing, sediment budget, topographic maps, topography, unconsolidated deposits, uncrewed aerial vehicle, Fewer tags Sand classifications along the Colorado River in Grand Canyon derived from 2002, 2009, and 2013 high-resolution multispectral airborne imagery These data are remote sensing image-based classification maps of unvegetated river-derived sand along the Colorado River. One map is based on imagery acquired in May 2013 and is a classification of sand located above the wetted river channel in the imagery which was acquired at the approximate contemporary low-flow river discharge of 8,000 cubic feet per second (227 cubic meters per second) and extends from Glen Canyon Dam at Lake Powell to Separation Canyon at Lake Mead, a total distance of approximately 255 river miles (410 river kilometer). Three other maps are based on imagery acquired in May 2002, 2009, and 2013, respectively, and are classifications of sand located above the wetted river channel (at river... Categories: Data; Tags: Arizona, Colorado River, Diamond Creek, GIS vector data, Geography, All tags... Geomorphology, Glen Canyon, Glen Canyon Dam, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, Information Sciences, Lake Mead, Lake Powell, Lees Ferry, Remote Sensing, Separation Canyon, USGS Science Data Catalog (SDC), aeolian, change detection, classification map, debris fans, eddies, fine sediment, fluvial, high-resolution multispectral airborne imagery, image classification, large sediment deposition zones, management, monitoring, multispectral image analysis, remote sensing, remote sensing image-based classification maps, research, river-derived sand, sand classification, sand distribution, sediment-related resources, supervised image classification, unsupervised image classification, unvegetated river-derived sand, Fewer tags Lidar point cloud 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... Tags: Arizona, Colorado River, Glen Canyon National Recreation Area, Grand Canyon, Grand Canyon National Park, All tags... Lees Ferry, Paria River, UAV imagery, USGS:65677123d34e17319ded0a33, 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