3D Topobathymetric Digital Elevation Model for Lake Powell Storage Capacity Assessment

Science Center Objects

To support the modeling of the Colorado River water storage area capacity tables by the U.S. Geological Survey (USGS) Utah Water Science Center, the USGS Earth Resources Observation and Science (EROS) Center created a 3D high-resolution topobathymetric digital elevation model (TBDEM) for Lake Powell. Located in south-central Utah and north-central Arizona, the second largest man-made reservoir in the United States was created by the flooding of a natural canyon by the construction of Glen Canyon Dam.

Ranging from 1947-2018, land elevations derived from lidar and historic topographic surveys and bathymetric multibeam sonar were used to generate the seamless Lake Powell TBDEM. This best available multi-source 3D data product is valuable for assessing water storage capacity, sediment transport, time-series analysis of land and water change during times of drought or impacts from climate change. 

 

This Department of the Interior (DOI) USGS EROS effort was in collaboration with the DOI Bureau of Reclamation, USGS Utah Water Science Center, and USGS Woods Hole Coastal and Marine Science Center.

 

Additional information and download capabilities regarding the Lake Powell TBDEM are located at https://doi.org/10.5066/P9XX0J1Y.

 

Lake Powell TDEM

Topobathymetric elevation model of Lake Powell. USGS image created by Sandra Poppenga, Dean Tyler, and Jeff Danielson.

(Public domain.)

Lake Powell

Topobathymetric elevation model of Lake Powell. USGS image created by Sandra Poppenga, Dean Tyler, and Jeff Danielson.

(Public domain.)

This video is a three-dimensional (3D) view of Lake Powell topobathymetric digital elevation model, which consists of topography (land elevation) and bathymetry (water depth). The 3D topobathymetric model was developed by the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center to support generation of the Colorado River water storage area capacity tables by the USGS Utah Water Science Center. This video shows the importance of high-resolution, detailed elevation information for the second largest man-made reservoir in the United States.

Dean Tyler, USGS EROS Center

(Public domain.)