Digital elevation model (DEM) data for the Colorado River corridor in Grand Canyon National Park and Glen Canyon National Recreation Area (2021)

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.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {010:12}
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identifier http://datainventory.doi.gov/id/dataset/usgs-62ab6770d34e74f0d80eb3af
metadata_type geospatial
modified 2025-01-23T00:00:00Z
old-spatial -114.02379, 35.740126, -111.476798, 36.965854
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash a99b169bc4724b00d933a0def6db5dc5770253c3c8d3d8440010415f5c1cee05
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-114.02379, 35.740126], [-114.02379, 36.965854], [ -111.476798, 36.965854], [ -111.476798, 35.740126], [-114.02379, 35.740126]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • adaptive-management
  • airborne-imagery
  • arizona
  • bright-angel-creek
  • change-detection
  • colorado-river
  • data-release
  • diamond-creek
  • digital-elevation-models
  • digital-surface-model
  • field-inventory-and-monitoring
  • glen-canyon
  • glen-canyon-dam
  • glen-canyon-national-recreation-area
  • grand-canyon
  • grand-canyon-national-park
  • havasu-creek
  • image-classification
  • imagerybasemapsearthcover
  • kanab-creek
  • lees-ferry
  • little-colorado-river
  • management
  • marble-canyon
  • monitoring
  • paria-river
  • remote-sensing
  • separation-canyon
  • shinumo-creek
  • tapeats-creek
  • usgs-62ab6770d34e74f0d80eb3af
isopen False
license_id notspecified
license_title License not specified
maintainer Joel B. Sankey
maintainer_email jsankey@usgs.gov
metadata_created 2025-09-24T17:46:30.235840
metadata_modified 2025-09-24T17:46:30.235850
notes 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.
num_resources 2
num_tags 39
title Digital elevation model (DEM) data for the Colorado River corridor in Grand Canyon National Park and Glen Canyon National Recreation Area (2021)