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Michigan Tech R/V Agassiz
Geological & Mining Engineering & Sciences
Civil & Environmental Engineering

Sonar Seminar on Michigan Tech's Research Vessel Agassiz

Side scan sonar is used to produce images of underwater geology and sunken objects. Common targets are shipwrecks, snowmobiles that have fallen through the ice, and drowning victims. It is also used to produce images of underwater sediment deposition (natural or man-made, such as mine tailings as anthropogenic targets for side scan), and other features of the lake bottom such as grooves made by ice. McQuest Marine Sciences Limited, in Burlington, Ontario is providing a Sport Scan sonar made by Imagenex (BC Canada) for demonstrations at MTU. This equipment is highly portable, and is powered by a 12 volt car battery. The electronics is in the sensor fish, which weighs about 25 pounds in air. The only other equipment required in the boat is a laptop computer and a GPS. In winter, the equipment can also be deployed by lowering it through a hole in the ice and turning it to obtain a radial scan. This demonstration on the R/V Agassiz was attended by limnologists, geologists, environmental engineers, industrial archeologists, and law enforcement.

'SportScan' Side scan sonar provided by McQuest Marine/Imagenex Inc. Seminar conducted by Dr. Charles T. Young, Associate Professor of Geophysical Engineering. Seminar sponsored by Geological and Mining Engineering and Sciences, Civil and Environmental Engineering and Biological Sciences Departments. R/V Agassiz piloted by Tom Rodeheffer. Side scan crew, Mark Gleason (Forestry) and Ed Verhamme (CEE).


Michigan Tech R/V Agassiz
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Sailing past Michigan Tech aboard the R/V Agassiz
Sailing past Michigan Tech
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Michigan Tech R/V Agassiz on Portage Lake
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Michigan Tech R/V Agassiz
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Michigan Tech R/V Agassiz GPS
Dr. Charles Young and Tom Rodeheffer
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Michigan Tech R/V Agassiz GPS
Checking the electronic display
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Michigan Tech R/V Agassiz GPS
GPS and Navigation display
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Michigan Tech R/V Agassiz on Lake Superior
Sportscan being deployed
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Michigan Tech R/V Agassiz
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Michigan Tech R/V Agassiz Keweenaw Bay
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Side scan sonar exploration
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Michigan Tech R/V Agassiz
Checking the sonar readings
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Michigan Tech R/V Agassiz
Dr. Young checking the course
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Michigan Tech R/V Agassiz on Keweenaw Bay
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Michigan Tech R/V Agassiz near Jacobsville
South Entry Jacobsville light
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Checking the Sonar data
Dr. Young, Dr. Suzanne Beske-Diehl and Sheriff Brian McLean
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Michigan Tech R/V Agassiz
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Michigan Tech R/V Agassiz
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Underwater exploration Lake Superior
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Underwater exploration sonar data
Dr. Beske-Diehl and Dr. Young observe Sportscan data on laptop
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Underwater exploration
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Vessel has high speed on water
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Portage Entry Lighthouse
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On to next station
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Side Scan sonar
Sportscan
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Deploying the side scan sonar
Being deployed again in river
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Sonar images being gathered
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Sonar underwater exploration
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Keweenaw Waterway
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Keweenaw Waterway
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R/V Agassiz
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Laptop sonar display
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Latop shows sonar image
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Keweenaw Waterway
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Keweenaw Waterway
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Keweenaw Waterway
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Keweenaw Waterway
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Keweenaw Waterway
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Michigan Tech R/V Agassiz
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Keweenaw Waterway
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Keweenaw Waterway
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Michigan Tech R/V Agassiz
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Cruising by Michigan Tech on the R/V Agassiz
Arriving at campus
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Michigan Tech side scan sonar group photo
Group photo
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The manufacturer's home page is:
http://www.imagenex.com/Products/SportScan/sportscan.html

Basic principles are discussed at: http://www.marine-
group.com/SonarPrimer/SideScanSonar.htm

Awesome side scan images are presented at:
http://www.marinesonic.com/archives.html

Michigan Tech R/V Agassiz Web Site
http://techalive.mtu.edu/resources/agassiz/index.htm

Photos this page by E. H. Groth


College of Engineering