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Survey and Bathymetric Data of Deadmans Lake; Golf Course Reservoir 9; Ice Lake; Kettle Lakes 1-3; and Non-Potable Reservoirs 1-4 at the U.S. Air Force Academy, Colorado, 2019 (ver. 1.1, June 2020)

June 30, 2020

The U.S. Geological Survey (USGS), in cooperation with the U.S. Air Force Academy, carried out bathymetry surveys to characterize the water-supply capacity of Deadmans Lake; Golf Course Reservoir 9; Ice Lake; Kettle Lakes 1, 2, and 3; and Non-Potable reservoirs 1, 2, 3, and 4 at the U.S. Air Force Academy, Colorado in 2019. This data release includes: the elevation and volumes at specified elevations for each lake or reservoir, combined terrestrial and bathymetry real-time kinematic (RTK) Global Navigation Satellite Systems (GNSS) survey points, and digital elevation models (DEMs) of the lakes and reservoirs. Bathymetric data were collected between October 15, 2019, and December 12, 2019, using a man-operated, boat-mounted, single-beam echo sounder integrated with RTK GNSS . Terrestrial surveys were carried out during the same time period using RTK GNSS and covered the dry shorelines of lakes and reservoirs. The terrestrial and bathymetric datasets were merged and imported into geographic information system software. The data points were then interpolated to create bathymetric DEMs, which were in turn used to generate elevation-volume curves of each lake or reservoir. These data provide water-resource managers with a better understanding of current water supply in the lakes and reservoirs and could also be used to determine sedimentation infill rates and estimates of the lifespan of the lakes and reservoir when compared with future surveys.