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Digital elevation model for Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area
A digital elevation model represented by a triangulated irregular network (TIN) was developed for proposed channel restoration at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. The TIN was derived from lidar (light imaging, detection, and ranging) of quality level 1 collected in April 2018 by Quantum Spatial (Quantum Spatial Inc, 2018) for the Bureau of Land Management. The DEM also includes points surveyed in August 13-16, 2019, using a real-time kinematic (RTK) global navigation satellite system (GNSS). The lidar data are not included in this USGS publication due to BLM data-release restrictions for this dataset. Contact Bureau of Land Management, Nevada, Winnemucca District office for more information.
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Digital elevation model for Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area
공공데이터포털
A digital elevation model represented by a triangulated irregular network (TIN) was developed for proposed channel restoration at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. The TIN was derived from lidar (light imaging, detection, and ranging) of quality level 1 collected in April 2018 by Quantum Spatial (Quantum Spatial Inc, 2018) for the Bureau of Land Management. The DEM also includes points surveyed in August 13-16, 2019, using a real-time kinematic (RTK) global navigation satellite system (GNSS). The lidar data are not included in this USGS publication due to BLM data-release restrictions for this dataset. Contact Bureau of Land Management, Nevada, Winnemucca District office for more information.
Channel modification at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada
공공데이터포털
A triangulated irregular network (TIN) developed to create a digital elevation model was modified to represent areas of proposed channel modification at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. This polygon shapefile contains the TIN modifications for locations of selected channels and ditches to be infilled or excavated for proposed restoration.
Channel modification at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada
공공데이터포털
A triangulated irregular network (TIN) developed to create a digital elevation model was modified to represent areas of proposed channel modification at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. This polygon shapefile contains the TIN modifications for locations of selected channels and ditches to be infilled or excavated for proposed restoration.
Streamflow depth at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada
공공데이터포털
This digital raster dataset contains information on estimated streamflow depth for proposed channel restoration at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. Streamflow depths were estimated by differencing water-surface elevations computed using a two-dimensional hydraulic model from mapped land-surface elevations using a digital elevation model of the study area.
Streamflow extent at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada
공공데이터포털
This polygon shapefile contains information on estimated streamflow extent for proposed channel restoration at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. Streamflow extents were estimated by differencing water-surface elevations computed using a two-dimensional hydraulic model from mapped land surface elevations using a digital elevation model of the study area.
Streamflow extent at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada
공공데이터포털
This polygon shapefile contains information on estimated streamflow extent for proposed channel restoration at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. Streamflow extents were estimated by differencing water-surface elevations computed using a two-dimensional hydraulic model from mapped land surface elevations using a digital elevation model of the study area.
Streamflow velocity at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada
공공데이터포털
This digital raster dataset contains information on estimated streamflow velocity for proposed channel restoration at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. Streamflow velocities were estimated using a two-dimensional hydraulic model.
Streamflow velocity at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada
공공데이터포털
This digital raster dataset contains information on estimated streamflow velocity for proposed channel restoration at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. Streamflow velocities were estimated using a two-dimensional hydraulic model.
Real-time kinematic (RTK) global navigation satellite system (GNSS) survey points at Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area
공공데이터포털
This point shapefile contains information on 476 locations surveyed using a single-base real-time kinematic (RTK) global navigation satellite system (GNSS) in Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada, August 14-15, 2019. The points were collected at 30-second intervals at control points and hydraulic structures and 5-second intervals at topographic points throughout the study area. The points were used as vertical precision verification for lidar data, editing the triangulated irregular network in locations of dense vegetation and surface water, locating streamflow measurement sites, creating hydraulic structures in the hydraulic model, and determining the elevation of possible high-water marks in the natural channel.
Digital elevation model (DEM) data for the Colorado River corridor in Grand Canyon National Park and Glen Canyon National Recreation Area (2021)
공공데이터포털
The 2021 Digital Elevation Model (DEM) dataset consists of single band rasters at 1-meter pixel resolution that were generated to orthorectify four band ortho imagery acquisition, and to support development of additional GIS products. Each pixel represents the elevation of the ground surface at that point expressed as NAD83(2011) ellipsoid height. A Digital Surface Model (DSM) was generated by automatic correlation of stereoscopic imagery collected from approximately 8,000 ft to 11,000 ft above mean sea level at 20-cm resolution with one Leica ADS100 digital push-broom multi-spectral sensor on each of two aircraft May 29, 2021 – June 4, 2021. The DEM was generated by removing the aboveground features from the DSM by filtering process. Data were collected during a period of low steady river flow of approximately 8,000 cubic feet per second released from Glen Canyon Dam. The data are for the segment of the Colorado River corridor from Glen Canyon Dam downstream to Pearce Ferry, AZ.