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Duluth Entry: 1-meter Digital elevation model (DEM) of beach topography of Lake Superior at the Duluth Entry, Duluth, MN, September 2020

Dates

Time Period
2020-09-22
Time Period
2020-09-23
Publication Date

Citation

Hanson, J.L., Sattler, S.R., and Lund, J.W., 2021, 1-meter Digital elevation model (DEM) of beach topography of Lake Superior at the Duluth Entry, Duluth, MN, September 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 of Lake Superior at the Duluth Entry, Duluth, Minnesota. The DEM has a 1-meter (m; 3.28084 feet) cell size and was created from a LAS dataset of terrestrial light detection and ranging (lidar) data representing the beach topography. Lidar data were collected September 23, 2020 using a boat mounted Velodyne unit. Multibeam sonar data were collected September 22-23, 2020 using a Norbit integrated wide band multibeam system compact (iWBMSc) sonar unit. Methodology similar to Wagner, D.M., Lund, J.W., and Sanks, K.M., 2020 was used.

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Extension: Duluth-Sept2020_Lidar_1m_ft.zip
Duluth-Sept2020_Lidar_1m_ft.tfw 92 Bytes
Duluth-Sept2020_Lidar_1m_ft.tif 9 MB
Duluth-Sept2020_Lidar_1m_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 areas that have been scoured by high water levels and wave activity. This post-placement survey was completed to evaluate movement of placed material and overall changes to the barrier island and surrounding nearshore area. The DEM is intended to be used as a comparison with pre-nourishment surveys, and is provided in GeoTiff format.

Map

Spatial Services

ScienceBase WMS

ScienceBase WCS

Communities

  • Upper Midwest Environmental Sciences Center (UMESC)

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Additional Information

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