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THODE, AARON

Associate Research Scientist

Degrees:

• B.S., Stanford University
• M.S., Stanford University
• Ph.D., UCSD, Scripps Institution of Oceanography

Research Interests:

• Marine mammal acoustics
• Advanced acoustic signal processing
• Geoacoustic imaging, inversion, and tomography

Honors and Awards:

• Fellow, Acoustical Society of America, 2009
• A.B. Wood Medal, Institute of Acoustics/Acoustical Society of America, 2005

Mentoring:

• Grebner, Dawn (Post Doc; 2010-2011)
• Mathias, Delphine (Graduate; 2005-2010)
• Guerra, Melania (Graduate; 2004-2010)

“Observations of potential acoustic cues that attract sperm whales to longline fishing in the Gulf of Alaska,” A.M. Thode, Janice Straley, Christopher Tiemann, Kendall Folkert, Victoria O'Connel, J. Acous. Soc. Am. 122(2), 1265-1277 (2007).

"Three-dimensional localization of sperm whales using a single hydrophone," Christopher Tiemann, Aaron Thode, Janice Straley, Kendall Folkert, Victoria O'Connell, J. Acous. Soc. Am. 120 (4), 2355-65 (2006).

“Three-dimensional passive acoustic tracking of sperm whales (Physeter macrocephalus) in ray-refracting environments,” A.M. Thode, J. Acous. Soc. Am. 118(6), 3575-3584 (2005).

“Using ocean ambient noise for array self-localization and self-synchronization,” Karim G. Sabra, Philippe Roux, Aaron M. Thode, Gerald L. D’Spain, W.S. Hodgkiss and W.A. Kuperman, IEEE Journal of Oceanic Engineering, 30(2), pp. 338-347, (2005).

“A portable matched-field processing system using passive acoustic time synchronization,” A.M. Thode, P. Gerstoft, W.C. Burgess, K. Sabra, M. Guerra, M.D. Stokes, M. Noad, and D.C. Cato, IEEE J. Ocean. Eng. 31(3), 696-710 (2006).

“Asymptotic accuracy of geoacoustic inversions,” M. Zanolin, Ian Ingram, A. Thode, N.C. Makris, J. Acous. Soc. Am., 116(4), 2031-2042 (2004).

“The derivative of a waveguide acoustic field with respect to an arbitrary sound speed perturbation”, A. Thode, J. Acous. Soc. Am., 115 (6), 2824-2833 (2004)

“Multiple-order derivatives of a waveguide acoustic field with respect to sound speed, density, and frequency” A. Thode and K. Kim, J. Acous. Soc. Am., 116(6), 3370-3383 (2004).

“Tracking sperm whale (Physeter macrocephalus) dive profiles using a towed passive acoustic array,” A Thode, J. Acous. Soc. Am., 116(1), 245-253( 2004).

“A normal-mode expression for the sensitivity of acoustic fields to three-dimensional refractive index perturbations in a constant-depth waveguide,using an analytic adjoint approach,” A. Thode, Proc. IEEE Oceans 2003, San Diego, 2003, 255-257.

“Modeling the dolphin sound production mechanism via modification of a simple vocal-fold model (abstract),” A.M. Thode, D. Blackwood, W. Elsberry, and T. Cranford, Conference Proceedings of the First International Conference on Acoustic Communication by Animals, Acoustical Society of America, July 2003, pp. 243-244.

“Probing Europa’s interior with natural sound sources,” Sunwoong Lee, Michele Zanolin, Aaron M. Thode, Robert T. Pappalardo, Nicholas C. Makris, Icarus, 165, 144-167 (2003). "Necessary conditions for a maximum likelihood estimate to become asympotically unbiased and attain the Cramer-Rao lower bound, Part II: range and depth localization of a sound source in an ocean waveguide", Aaron Thode, Michele Zanolin, Eran Naftali, Ian Ingram, Purnima Ratilal, and Nicholas C. Makris, J. Acous. Soc. Am., 112(5), 1890-1910, Nov. 2002.

"Depth-dependent acoustic features of diving sperm whales in the Gulf of Mexico," A. M. Thode, D.K. Mellinger, S. Stienessen, A. Martinez, K.D. Mullin, J. Acous. Soc. Am., 112(1) 308-321, Jul 2002.

"The Generalized Waveguide Invariant Concept with Application to Vertical Arrays in Shallow Water," W.A. Kuperman, G.L. D'Spain, H.C. Song, A.M. Thode, presented in Ocean Acoustic Interference Phenomena and Signal Processing Workshop, AIP Conference Proc. #621, pp. 33-64, May 2001.

"Source ranging with minimal environmental information using a virtual receiver and waveguide invariants", A.M. Thode, J. Acous. Soc. Am. 108(4), 1582-1594, Oct. 2000.

"Localization using Bartlett matched-field processor sidelobes", A.M.Thode, W.A. Kuperman, Gerald L. D'Spain, William S. Hodgkiss, J. Acous. Soc. Am. 107 (1), 278-286, Jan. 2000.

"Beamforming on dolphin whistles using a sparse hydrophone array", A.M. Thode, T. Norris, J. Barlow, J. Acous. Soc. Am., 107(6),3581-3584, June 2000.

"Matched-Field processing, source signature recovery, and geoacoustic inversion of blue whale vocalizations"-A.M.Thode, Gerald L. D'Spain, W.A. Kuperman, J. Acous. Soc. America, 107(3), 1286-1300, Mar. 2000.

"Effects of environmental mismatch on Bartlett sidelobe broadband interference structures" (four page abstract), A.M. Thode, G.L. D'Spain, Hee Chun Song, W.A. Kuperman, May 1998. Presented at Seattle, June 1998.

"The effect of mixed-mode propulsion on the Delta Clipper", A. Thode, J. Practical Applications in Space, VI (2), 151-192.