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John Spiesberger

Visiting Scholar


1980 Ph.D., Oceanography, Scripps Institute of Oceanography, University of California, San Diego

1975 A.B., Physics, University of California, Berkeley

Woods Hole Oceanographic Institution, 1982-1992
Department of Meteorology and Applied Research Laboratory, The Pennsylvania State University 1992-1999.
Visiting Scholar, Earth and Environmental Science, University of Pennsylvania 1999-present

Locating and Censusing Calling Marine Mammals in the Chukchi Sea with Time Differences of Arrival Amongst Black Holes of 2D Models

Research Interests

Estimating abundance of calling animals in the air and ocean, locating calling animals with widely separated receivers, propagation of sound  in the ocean and air, oceanography, wave propagation, signal processing.



Selected Publications

1.Spiesberger, J.L., Dimension reduction in location estimation - the need for variable propagation speed, Acoustical Physics, 66(2), 178-190, DOI 10.1134/S1063771020020098, 2020.,

2. Spiesberger, J.L., and Mikhin, D.Y., Computational Speeds of Three Parabolic Approximations, J. Theoretical and Computational Acosutics, J. Theor. and Compuat. Acoust. DOI 10.1142/S259172851950018X , 2020.

3. Spiesberger, J.L., and Mikhin, D.Y., Computing Where Perturbations Affect the Acoustic Impulse Response in the Ocean, J. Computational Acoustics, 26, No. 2, DOI:10.1142/S2591728518500044, 1850004-1 - 1850004-15, 17 Oct 2017.

4. Spiesberger, J.L., Determining Probability Distribution of Coherent Integration Time
near 133 Hz and 1346 km in the Pacific Ocean, J. Acoust. Soc. Am., 133, 721-730, 2013.

5. Spiesberger, J.L., Probability distributions for locations of calling animals, receivers,
sound speeds, winds, and data from travel time differences, J. Acoust. Soc. Am. 118
1790-1800, 2005.

6. Spiesberger, J.L., Geometry of locating sounds from differences in travel time: Isodiachrons, J. Acoust. Soc. Am., 116 3168-3177 (2004).

7. Spiesberger, J. L., Hyperbolic location errors due to insufficient number of receivers, J. Acoust. Soc. Am., 109, 3076-3079 (2001).

8. Spiesberger, J.L., An updated perspective on basin-scale tomography, J. Acoust. Soc. Am., 109, 1740-1742 (2001).

9. Spiesberger, J.L., Finding the right cross-correlation peak for locating sounds in multipath environments with a fourth-moment function, J. Acoust. Soc. Am., 108, 1349-1352 (2000).

10. Spiesberger, J. L., Locating animals from their sounds and tomography of the atmosphere: experimental demonstration, J. Acoust. Soc. Am., 106, 837-846 (1999)

11. Jacobson, A. R., and Spiesberger, J. L., Observations of ENSO-induced Rossby Waves
in the Northeast Pacific Using in situ Data, J. Geophys. Res., 103, no. C11, October, (1998).

12. Spiesberger, J.L., Hurlburt, H.E., Johnson, M., Keller, M., Meyers, S., and O’Brien,
J.J., Acoustic thermometry data compared with two ocean models: The importance of
Rossby waves and ENSO in modifying the ocean interior, Dynamics of Atmospheres
and Oceans, 26(4), 209-240, (1998).

13. Spiesberger, J. L., and Metzger, K. and Furgerson, J. A., Listening for climatic temperature change in the northeast Pacific: 1983-1989, J. Acoust. Soc. Am., 92, 384-396 1992).

14. Spiesberger, J. L., and Metzger, K., Basin scale ocean monitoring with acoustic thermometers, Oceanography, 5, 92-98, (1992).

15. Spiesberger, J. L., and Metzger, K.,New estimates of sound-speed in water, J. Acoust. Soc. Am., 89, 1697-1700, (1991).

16. Spiesberger, J. L. and Metzger, K., Basin-scale tomography: a new tool for studying weather and climate,J. Geophys. Res., 96, 4869- 4889, (1991).

17. Spiesberger, J.L., and Fristrup, K.M., Passive localization of calling animals and sensing of their acoustic environment using acoustic tomography, The American Naturalist, 135, 107-153, (1990).

18. Spiesberger, J.L., Bushong, P.J., Metzger, K., and Birdsall, T.G., Ocean Acoustic Tomography: Estimating the acoustic travel time with phase, IEEE J. Oceanic Engineerng, 14(1), 108-119, (1989).


Department of Earth and Environmental Science / University of Pennsylvania, 251 Hayden Hall, 240 South 33rd Street, Philadelphia, PA 19104-6316