Minnesota Point: XYZ files of lidar and multibeam sonar data collected at Lake Superior at Minnesota Point, Duluth, MN, July 2020
Dates
Time Period
2020-07-20
Time Period
2020-07-23
Publication Date
2021-10-25
Citation
Hanson, J.L., Sattler, S.R., and Lund, J.W., 2021, XYZ files of lidar and multibeam sonar data collected at Lake Superior at Minnesota Point, Duluth, MN, July 2020: U.S. Geological Survey data release, https://doi.org/10.5066/P9JH0O1X.
Summary
This dataset consists of two files containing northing, easting, and elevation ("XYZ") information for light detection and ranging (lidar) data representing the beach and near-shore topography of Lake Superior at Minnesota Point, Duluth, Minnesota. The point data is the same as that in the LAS dataset used to create a digital elevation model (DEM) of the approximately 2.27 square kilometer surveyed area. Lidar data were collected July 23, 2020 using a boat mounted Velodyne unit. Multibeam sonar data were collected July 20th and 23rd, 2020 using a Norbit integrated wide band multibeam system (iWBMSc) sonar unit. Methodology for data collection similar to Wagner, D.M., Lund, J.W., and Sanks, K.M., 2020 was used.
Summary
This dataset consists of two files containing northing, easting, and elevation ("XYZ") information for light detection and ranging (lidar) data representing the beach and near-shore topography of Lake Superior at Minnesota Point, Duluth, Minnesota. The point data is the same as that in the LAS dataset used to create a digital elevation model (DEM) of the approximately 2.27 square kilometer surveyed area. Lidar data were collected July 23, 2020 using a boat mounted Velodyne unit. Multibeam sonar data were collected July 20th and 23rd, 2020 using a Norbit integrated wide band multibeam system (iWBMSc) sonar unit. Methodology for data collection similar to Wagner, D.M., Lund, J.W., and Sanks, K.M., 2020 was used.
Data were collected in cooperation with the U.S. Army Corps of Engineers (USACE), Detroit District, to define beach topography and near-shore bathymetry after placing dredge spoils to mitigate beach erosion. This post-placement survey was completed to evaluate movement of placed material and overall changes to the barrier island and surrounding nearshore area approximately 1-year after nourishment placement. The XYZ files are provided for input use in CAD and other computer programs that require space-delimited position and elevation information.
