Hanson, J.L., and Sattler, S.R., 2021, Lock and Dam 19 Mega-Imaging Sonar Mosaic, 2020: U.S. Geological Survey data release, https://doi.org/10.5066/P9KPXIJN.
Summary
A high-resolution sidescan image of the Mississippi River, Lock and Dam 19 approach (downstream) was collected with a Humminbird Solix. Side-imaging sonar creates an image of underwater riverbed features by measuring the intensity of acoustic reflections. This mega side-imaging sonar data was collected and mosaicked to capture more detailed information on the condition of the lock approach to provide information for the construction and deployment of an underwater acoustic deterrent system.
Summary
A high-resolution sidescan image of the Mississippi River, Lock and Dam 19 approach (downstream) was collected with a Humminbird Solix. Side-imaging sonar creates an image of underwater riverbed features by measuring the intensity of acoustic reflections. This mega side-imaging sonar data was collected and mosaicked to capture more detailed information on the condition of the lock approach to provide information for the construction and deployment of an underwater acoustic deterrent system.
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Purpose
The U.S. Geological Survey and U.S. Army Corps of Engineers need to make informed decisions to meet contracting deadlines for the construction and deployment of an underwater acoustic deterrent system in the Mississippi River, Lock and Dam 19. The mega-side imaging was required to capture more detailed information on the condition of the concrete sill/discharge trench where the acoustic deterrent system will be located, locate a sewer discharge pipe/outlet, and locate areas of the lock bottom that will need to be serviced by divers prior to system installation.
Communities
Upper Midwest Environmental Sciences Center (UMESC)
