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Minnesota Point: 5-meter Digital elevation model (DEM) of beach topography and near-shore bathymetry of Lake Superior at Minnesota Point, Duluth, MN, July 2020

Dates

Time Period
2020-07-20
Time Period
2020-07-23
Publication Date

Citation

Hanson, J.L., Sattler, S.R., and Lund, J.W., 2021, 5-meter Digital elevation model (DEM) of beach topography and near-shore bathymetry of Lake Superior at Minnesota Point, Duluth, MN, July 2020: U.S. Geological Survey data release, https://doi.org/10.5066/P9JH0O1X.

Summary

This dataset is a digital elevation model (DEM) of the beach topography and near-shore bathymetry of Lake Superior at Minnesota Point, Duluth, Minnesota. The DEM has a 5-meter (m; 32.8084 feet) cell size and was created from a LAS dataset of terrestrial light detection and ranging (lidar) data representing the beach topography and multibeam sonar data representing the bathymetry to approximately 1 kilometer (0.62 miles) offshore, for an 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 compact (iWBMSc) sonar unit. Methodology similar to Wagner, [...]

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Extension: LakeSuperior_MNpt_5m_ft.zip
LakeSuperior_MNpt_5m_ft.tfw 94 Bytes
LakeSuperior_MNpt_5m_ft.tif 343.57 KB
LakeSuperior_MNpt_5m_ft.tif-ColorRamp.SLD 2.09 KB

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 after placing dredge spoils to mitigate beach erosion. This post-placement survey was completed to determine how much beach-nourishment remains approximately 1-year after nourishment placement.

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ScienceBase WMS

ScienceBase WCS

Communities

  • Upper Midwest Environmental Sciences Center (UMESC)

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