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Elevation contours of beach topography and nearshore bathymetry of Lake Superior at Minnesota Point near the Duluth Entry, Duluth, MN, August 2022

The elevation contours in this dataset have a 2-foot (ft) interval and were derived from a digital elevation model (DEM) of beach topography and nearshore bathymetry of Lake Superior at Minnesota Point, Duluth, Minnesota. The DEM has a 1 meter (m; 3.28084 ft) cell size and was created from Lidar data representing beach topography and sonar data representing bathymetry extending approximately 700-800 m offshore. The data cover an approximately 1.75 square kilometer survey area. Lidar data were collected August 22, 2022 using a boat mounted Velodyne VLP-16 unit and methodology similar to that described by Huizinga and Wagner (2019). Multibeam sonar data were collected August 22-23, 2022 using a Norbit integrated wide band multibeam system compact (iWBMSc) sonar unit and methodology similar to that described by Richards and Huizinga (2018). Single-beam sonar data were collected August 23, 2022 using a Ceescope echosounder and methodology similar to that described by Wilson and Richards (2006).This project followed similar methods to that of Wagner, Lund, and Sanks (2020), who completed a similar survey in 2019.

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Author(s) Jenny L Hanson orcid, John (William) Lund orcid, Jayme M Strange orcid, Benjamin P Adolphson, Julia Rose Bruce
Publication Date 2024-09-12
Beginning Date of Data 2022-08-22
Ending Date of Data 2022-08-23
Data Contact
DOI https://doi.org/10.5066/P9Q27BD3
Citation Hanson, J.L., Lund, J.(., Strange, J.M., Adolphson, B.P., and Bruce, J.R., 2024, Elevation contours of beach topography and nearshore bathymetry of Lake Superior at Minnesota Point near the Duluth Entry, Duluth, MN, August 2022: U.S. Geological Survey data release, https://doi.org/10.5066/P9Q27BD3.
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Metadata Date 2024-09-12
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Citations of these data

Loading https://doi.org/10.1016/j.jglr.2024.102459

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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2024-09-13T04:54:56.914Z