Environmental Sensing with AUV-Based Sonar
This event will also be available both as a live event and through WebEx broadcast. Registered participants will receive login information to the web conference before the event.
Acoustic refraction and scattering by water column features such as tidal fronts have a profound effect on sonar performance. These features have been explored with satellite, imaged with marine radar, directly measured with CTD and inferred through propagation measurements. However, high-frequency AUV-based sonars offer a unique method of mapping these structures dynamically over a large area. A proof of concept was carried out in the Columbia River in September of 2014 and 2015. In these field tests, an forward-looking sonar was used to map large hydrological events. These events were simultaneously sensed with marine radar and a large swath of the tidal front was imaged with both systems. Because the marine radar is only sensitive to surface features, the use of the sonar provides the underwater picture of the event for both fluid dynamics model verification and prediction verification for remote sensing techniques. This sensor is now being deployed on a REMUS 600 AUV for seven field trials in the next five years in rivers and estuaries to further explore the method.
Date and Time
Location
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- Date: 04 Jul 2017
- Time: 06:00 PM to 07:30 PM
- All times are (GMT-04:00) Canada/Atlantic
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- 6100 University Ave
- Halifax, Nova Scotia
- Canada
- Building: KENNETH C. ROWE MANAGEMENT BUILDING
- Room Number: 1007
- Click here for Map
- Starts 25 May 2017 12:00 AM
- Ends 04 July 2017 07:00 PM
- All times are (GMT-04:00) Canada/Atlantic
- Admission fee ?
Speakers
Dr Marcia Isakson of Applied Research Laboratories, The University of Texas at Austin
Environmental Sensing with AUV-Based Sonar
Biography:
Marcia Isakson received a B.S. with a double major in engineering physics and mathematics from the United States Military Academy at West Point, New York, in 1992. Upon graduation, she was awarded the Hertz Foundation Fellowship for the study of atomic and molecular physics. She earned her M.A. in atomic and molecular physics from The University of Texas at Austin in 1994. From 1994 to 1997, Isakson was stationed with the U.S. Army at Fort Hood, Texas where she served as a warehouse manager, shop officer and battalion operations officer. In 1997, Dr. Isakson was honorably discharged from the army with the rank of captain. In 2002, she earned a Ph.D. from The University of Texas. Since 2001, she has been involved in research in underwater acoustics at the Applied Research Laboratories at the University of Texas at Austin. Her current research interests are the acoustics of ocean sediments, finite element modeling, acoustic scattering and propagation and high-frequency AUV-based sonar.
Dr. Isakson is currently serving as the president of the Acoustical Society of America where she has also served on the executive council and chaired several committees. She is a member of the governing board of the American Institute of Physics. Dr. Isakson has been designated as a Distinguished Lecturer of the IEEE Oceanic Engineering Society since 2010.
Email:
Address: Austin, Texas, United States
Dr Marcia Isakson of Applied Research Laboratories, The University of Texas at Austin
Environmental Sensing with AUV-Based Sonar
Biography:
Email:
Address: Austin, Texas, United States
Dr Marcia Isakson of Applied Research Laboratories, The University of Texas at Austin
Environmental Sensing with AUV-Based Sonar
Biography:
Email:
Address: Austin, Texas, United States
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