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Marine and Physical Acoustics Division Overview David L. Bradley - - PowerPoint PPT Presentation
Marine and Physical Acoustics Division Overview David L. Bradley - - PowerPoint PPT Presentation
Marine and Physical Acoustics Division Overview David L. Bradley 29 April 2014 Center for Acoustics and Vibration ORGANIZATION AND STAFFING Acoustics Division Ocean Marine Physical Acoustics Bioacoustics Acoustics Department
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Primary: Individual researchers, PI’s for sponsor direct
funded programs Secondary: Often combine in 1-3 person teams for joint proposals/tasks
- frequently, team with external colleagues for
similar, larger tasks
ACOUSTICS DIVISION
How we function
8 Faculty Researchers (Ph.D.) joint faculty Graduate Program of Acoustics 2 Research Scientist (Ph.D.) 1 Research Asst (M.S.) 5 Office Administrators (JUA) 7 Graduate and 1 Undergrad Students
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ACOUSTICS DIVISION
Acoustics Research Areas/Core Competencies ($4M)
- Ocean Acoustics
– Seafloor characterization ONR, NSF, SPAWAR – Water column characterization ONR – Acoustic modeling and simulation ONR – Underwater threat neutralization ONR, NUWC – Weapon Countermeasures ONR – Ocean array experiments ONR, NRL – Radiated/self noise ONR, NAWC
- Marine Bioacoustics
– Marine mammal/fish studies ONR, Woods Hole Oceanographic Institution – Joint Industry Program on the Effects of Industry Sounds on Marine Animals, Int’l Oil and Gas – Ambient Noise
- Physical Acoustics
– Atmospheric infrasonic monitoring arrays Univ. of Miss. (Army) – Thermoacoustics ONR, DoE
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Ocean Acoustics - At-Sea Experiments
International
- Nordic Seas 2014, Fish Studies, Norway (around Arctic
Circle)
- Change Detection and Seafloor Complexity Experiment, HU
Sverdrup II Larvik, Norway, 2011 (student: Derek Olson)
- AMiCa-10 (Autonomous Mine Clearance), 2010, Italy
(student: Dan Brown)
- Clutter09, April – June 2009, Italy
- QPE Geoacoustic Uncertainty, June/August 2009, Taiwan
National
- Bering Sea, Acoustic Moorings, 2008-Present (student: Sam
Denes)
- TREX13, April/May 2013, Reverberation & Clutter,
Panama City, FL
- Gulf-Ex, Active Sonar Reverberation, May 2012, Panama
City, FL
- Long Range Acoustic Comms, Sept 2010, off San Diego
The ONR FIVE OCTAVE RESEARCH ARRAY (FORA) at Penn State CTD Chain
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In addition to PSU and other US Academic & Lab ties, the Division maintains
- ngoing collaborative efforts internationally:
Australia – Visiting Scientist – AUV G&C Studies Canada – Visiting Scientists – Geophysical Inversion/ Modeling Germany – Visiting Scientist – Signal Processing Denmark – Visiting Scientist, at-sea exp. – Harbor Defense, SAS New Zealand – Visiting Scientist – Synth. Apert. Sonar (SAS) NURC – Exchange Scientists, at-sea exp. – S/W Propagation, reverberation
(NATO Undersea Research Centre)
– AUV Studies, Seafloor Scattering Korea – At-sea Experiments – Shallow Water Propagation France – Visiting scientist/students – Seafloor Characterization
ACOUSTICS DIVISION International Collaboration
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The Division – National Ties
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Seahorse SAS Single Band Data of Herbert Maxwell: Raw, Image, and Bathymetric
Chesapeake Bay Collection Conditions: Water Depth: 20 m SONAR Depth: 7 meters Range: 130 meters
Ping: 720 - D-0001.dat 20 40 60 80 100 120 140 50 100 150 200 250 300 20 40 60 80 100 120 140
- 100
- 80
- 60
- 40
- 20
dB Full Scale F:\Jan17\06Jan17_1900\ D-0001.dat Range (m)
The Maxwell is a 4-masted schooner built in 1905 that sunk on May 16, 1910, east
- f Annapolis, Maryland,
after colliding with the SS Gloucester.
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SSAM Technical Readiness Assessment (TRA) Buzzard’s Bay Operations Overview
18Apr2014
Use or disclosure of data contained on this page is subject to the restriction on the title page of this presentation. FOUO
Curtiss SB2C Helldiver
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28 hours later
46.30 46.35 46.40 46.45 46.50 46.55 46.60
Detrended Depth (m)