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To support the modeling of the Colorado River water storage area capacity tables by the U.S. Geological Survey (USGS) Utah Water Science Center in the Glen Canyon National Recreation Area in Utah and Arizona, the USGS Earth Resources Observation and Science (EROS) Center has created an integrated 1-meter topobathymetric digital elevation model (TBDEM) for Lake Powell, the second largest man-made reservoir in the United States. Located in south-central Utah and north-central Arizona, Lake Powell is a reservoir on the Colorado River created by the flooding of a natural canyon by the construction of Glen Canyon Dam. The new Lake Powell TBDEM consists of the best available multi-source topographic and bathymetric elevation...
Tags: 3D Elevation Program, 3DEP, Acoustic Sonar, Arizona, Bathymetric, All tags...
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...
Categories: Data; Tags: 3D Elevation Program, 3DEP, Acoustic Sonar, Arizona, CoNED, All tags...


    map background search result map search result map One Meter Topobathymetric Digital Elevation Model for Lake Powell, Arizona-Utah, 1947-2018 Modified topobathymetric elevation data for Lake Powell Modified topobathymetric elevation data for Lake Powell One Meter Topobathymetric Digital Elevation Model for Lake Powell, Arizona-Utah, 1947-2018