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This data release comprises nearly three decades of measurements of sandbar topography for monitoring sites along the Colorado River in Grand Canyon National Park and Glen Canyon National Recreation Area. The data were collected to monitor the effects of the operations of Glen Canyon Dam on sandbars, which are also recreational campsites. The data were collected by the US Geological Survey Grand Canyon Monitoring and Research Center in cooperation with Northern Arizona University. Funding for data collection, processing, and reporting has been provided by the Glen Canyon Dam Adaptive Management Program administered by the US Department of the Interior Bureau of Reclamation.
Tags: Arizona,
Colorado River,
Ecology,
Geography,
Geomorphology, All tags...
Glen Canyon Dam,
Glen Canyon National Recreation Area,
Grand Canyon National Park,
Hydrogeology,
Information Sciences,
Remote Sensing,
USGS Science Data Catalog (SDC),
Water Resources,
aquatic ecosystems,
campsites,
dam operations,
dams,
deposition,
elevation,
erosion,
field experiments,
field inventory and monitoring,
geomorphology,
geoscientificInformation,
high-flow experiments,
hydrology,
hydropower,
inlandWaters,
measurements,
monitoring,
power generation water use,
rebuild sandbars,
recreation,
recreational campsites,
river ecosystems,
rivers,
sandbar topography,
sandbars,
sedimentation,
size and condition of the sandbars,
terrestrial ecosystems,
topography,
water resources, Fewer tags
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Bathymetric, topographic, and grain-size data were collected from May 2013 to October 2016 along a 15-mi reach of the Colorado River in Glen Canyon National Recreation Area, Arizona by the U.S. Geological Survey Grand Canyon Monitoring and Research Center. The study reach is located from river miles -15 at the base of Glen Canyon Dam to 0 at Lees Ferry. Channel bathymetry was mapped using multibeam bathymetry collected in November 2014 and single beam bathymetry collected in February 2015, August 2015, February 2016, and June 2016. Subaerial topography was mapped using photogrammetry derived from aerial Imagery collected in May 2013 and ground-based total-stations collected in February 2015, October 2015, and October...
Tags: 1-m resolution,
Arizona,
Colorado River,
DEM,
Geography, All tags...
Geomorphology,
Glen Canyon Dam,
Glen Canyon National Recreation AreaGrand Canyon National Park,
Grand Canyon National Park,
Hydrology,
Information Sciences,
Lees Ferry,
Remote Sensing,
USGS Science Data Catalog (SDC),
aerial photography,
bathymetric and topographic data,
bathymetric map,
bathymetric survey data,
bathymetry,
bed substrate distribution,
bed-substrate map,
benchmarks,
boat-based bathymetric sonar surveys,
cartography,
channel bathymetry,
channel bed substrate,
digital elevation models,
digital photogrammetry,
digital surface model dataset,
elevation,
elevation map,
elevation uncertainty,
environment,
field inventory and monitoring,
field monitoring stations,
fuzzy inference system,
geodesy,
geodetic control network points,
geoscientificInformation,
geospatial datasets,
gravel deposits,
ground-based total station surveys,
inlandWaters,
land surveying,
multibeam sonar,
point density,
remote sensing,
river channel,
river reaches,
riverbank topography,
roughness,
sand deposits,
sandbars,
single-beam echo sounder,
slope,
spatial accuracy,
subaerial topography,
topographic maps,
uncertainty,
water-surface elevations, Fewer tags
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