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Modified topobathymetric elevation data for Lake Powell


Publication Date
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Jones, D.K., and Root, J.C., 2021, Modified topobathymetric elevation data for Lake Powell: U.S. Geological Survey data release,


This dataset provides a modified version of the previously published Lake Powell topobathymetric digital elevation model (TBDEM; Poppenga and others, 2020). The original TBDEM is comprised of four source datasets: (1) a 2017 1-meter multibeam bathymetric survey; (2) a 2018 topographic light detection and ranging (lidar) derived digital elevation model (DEM); (3) a historical topographic DEM that was interpolated from contours maps created in 1947 and 1959; and (4) interpolated topography where gaps existed in the bathymetric and lidar data or where historical data were not suitable (Poppenga and others, 2020). For this data release, two corrections were made to the TBDEM to address errors associated with the historic DEM and interpolated [...]


Point of Contact :
Daniel K Jones
Originator :
Daniel K Jones, Jonathan (Casey) Root
Metadata Contact :
Daniel K Jones
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Utah Water Science Center
USGS Mission Area :
Water Resources

Attached Files

Click on title to download individual files attached to this item.
“Spatial metadata”
47.58 MB application/zip

“Modified TBDEM raster”
2.97 GB application/zip


The primary purpose of this dataset is to provide a more accurate topobathymetric representation of Lake Powell for use in elevation-area-capacity relationship calculations.

Additional Information


Type Scheme Key
DOI doi:10.5066/P9H60YCF

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