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 Department Department 8 Research Faculty (Ph.D.) 5 Office Administrators 3 Research Scientists & Assists. 7 Graduate and 1 Undergraduate Students
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 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 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
Ocean Acoustics - At-Sea Experiments International • Nordic Seas 2014, Fish Studies, Norway (around Arctic Circle) The ONR FIVE OCTAVE RESEARCH • Change Detection and Seafloor Complexity Experiment, HU ARRAY (FORA) at Penn State 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 CTD Chain • Gulf-Ex, Active Sonar Reverberation, May 2012, Panama City, FL • Long Range Acoustic Comms, Sept 2010, off San Diego
ACOUSTICS DIVISION International Collaboration In addition to PSU and other US Academic & Lab ties, the Division maintains ongoing 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 – AUV Studies, Seafloor Scattering Research Centre) Korea – At-sea Experiments – Shallow Water Propagation France – Visiting scientist/students – Seafloor Characterization
The Division – National Ties
Seahorse SAS Single Band Data of Herbert Maxwell : Raw, Image, and Bathymetric Ping: 720 - D-0001.dat 50 100 150 200 250 300 0 20 40 60 80 100 120 140 F:\Jan17\06Jan17_1900\ D-0001.dat 0 -20 dB Full Scale -40 -60 -80 -100 0 20 40 60 80 100 120 140 Range (m) The Maxwell is a 4-masted schooner built in 1905 that sunk on May 16, 1910, east of Annapolis, Maryland, after colliding with the SS Gloucester . Chesapeake Bay Collection Conditions: Water Depth: 20 m SONAR Depth: 7 meters Range: 130 meters
SSAM Technical Readiness Assessment (TRA) Buzzard’s Bay Operations Overview Curtiss SB2C Helldiver Use or disclosure of data contained on this page is subject to the restriction on the title page of 18Apr2014 this presentation. FOUO
28 hours later 46.30 46.35 46.40 46.45 46.50 46.55 46.60 Detrended Depth (m)
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