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XYZ files of lidar, single-beam, and multibeam sonar data of Minnesota Point near the Duluth Entry of Lake Superior, Duluth, MN, October 2021

Dates

Publication Date
Start Date
2021-10-05
End Date
2021-10-11

Citation

Hanson, J.L., Lund, J.W., Strange, J.M., Vaughan, A.A., Reneau, P.C., and Coenen, E.N., 2022, Minnesota Point post-nourishment surveys of the beach topography and near-shore bathymetry of Lake Superior, Duluth, MN, September - October, 2021: U.S. Geological Survey data release, https://doi.org/10.5066/P92LLRW5.

Summary

This dataset consists of three files containing northing, easting, and elevation ("XYZ") information for light detection and ranging (lidar) data representing the beach topography and near-shore bathymetry of Minnesota Point near the Duluth Entry of Lake Superior, Duluth, Minnesota. The point data is the same as that in the LAS dataset used to create a digital elevation model (DEM) for the approximate 1.87 square kilometer surveyed area. Lidar data were collected using a boat mounted Velodyne VLP-16 unit. Multibeam sonar data were collected using a Norbit integrated wide band multibeam system compact (iWBMSc) sonar unit. Single-beam sonar data were collected using a Ceescope sonar unit. All elevation data were collected October 5-11, [...]

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Attached Files

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XYZ_Duluth_Oct2021_Lidar.txt 358.56 MB text/plain
XYZ_Duluth_Oct2021_MB.txt 236.28 MB text/plain
XYZ_Duluth_Oct2021_SB.txt 1.56 MB text/plain

Purpose

Data were collected in cooperation with the U.S. Army Corps of Engineers (USACE), Detroit District, to define beach topography and near-shore bathymetry prior to beach nourishment in areas of Minnesota Point near the Duluth Entry to Lake Superior that have been scoured by high water levels and heavy wave activity. This survey was completed to obtain post-nourishment data where dredge materials were placed to mitigate beach erosion. The data will be used to compare against pre-nourishment conditions of June, 2021. The XYZ files are provided for input use in CAD and other computer programs that require space-delimited position and elevation information.

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Communities

  • Upper Midwest Environmental Sciences Center (UMESC)

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