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WORCESTER, PETER

Research Oceanographer

Senior Lecturer

Degrees:

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

Research Interests:

• Application of acoustic remote sensing techniques to studying large-scale ocean circulation and temperature structure

Honors and Awards:

• Science Writing Award in Acoustics for Media other than Articles (Granted by the Acoustical Society of America), 2007
• Walter Munk Award for Distinguished Research in Oceanography Related to Sound and the Sea (Granted by the United States Navy and The Oceanography Society), 2006
• Fellow, Institute of Electrical and Electronics Engineers, 2003
• Fellow, Acoustical Society of America, 1987
• National Science Foundation Fellowship, 1973-74
• National Science Foundation Fellowship, 1972-73
• Tau Beta Pi, 1968
• Lisle Abbott Rose Memorial Award, University of Illinois, 1968
• National Science Foundation Fellowship, 1968-69

Mentoring:

• Van Uffelen, Lora (Graduate; 2002-)
• Vera, Michael (Post Doc; 2002-2004)
• Tiemann, Christopher (Graduate; 1995-2000)
• Chester, David (Post Doc; 1993-1995)
• Colosi, John (Post Doc; 1993-1996)
• Sparrock, Robert (Masters; 1988-1990)
• Dushaw, Brian (Graduate; 1987-1992)
• Morawitz, Werner (Graduate; 1987-1995)
• Sutton, Philip (Graduate; 1987-1993)
• Howe, Bruce (Graduate; 1981-1986)

Dushaw, B. D., P. F. Worcester, W. H. Munk, R. C. Spindel, J. A. Mercer, B. M. Howe, K. Metzger, Jr., T. G. Birdsall, R. K. Andrew, M. A. Dzieciuch, B. D. Cornuelle, and D. Menemenlis, 2008: A decade of acoustic thermometry in the North Pacific Ocean. J. Geophys. Res., accepted.

Mercer, J. A., J. A. Colosi, B. M. Howe, M. A. Dzieciuch, R. Stephen, and P. F. Worcester, 2008: LOAPEX: The Long-range Ocean Acoustic Propagation Experiment. IEEE J. Ocean. Eng., accepted.

Miller, A. J., D. J. Neilson, D. S. Luther, M. C. Hendershott, B. D. Cornuelle, P. F. Worcester, M. A. Dzieciuch, B. D. Dushaw, B. M. Howe, J. C. Levin, H. G. Arango, and D. B. Haidvogel, 2007: Barotropic Rossby wave radiation from a model Gulf Stream. Geophys. Res. Lett., 34, L23613.

Worcester, P. F. and R. C. Spindel, 2005: North Pacific Acoustic Laboratory. J. Acoust. Soc. Am., 117, 1499-1510.

Worcester, P. F., W. H. Munk, and R. C. Spindel, 2005: Acoustic remote sensing of ocean gyres. Acoustics Today, 1, 11-17.

Wage, K. E., M. A. Dzieciuch, P. F. Worcester, B. M. Howe, and J. A. Mercer, 2005: Mode coherence at megameter ranges in the North Pacific Ocean. J. Acoust. Soc. Am., 117, 1565–1581.

Voronovich, A. G., V. E. Ostashev, and The NPAL Group (J. A. Colosi, B. D. Cornuelle, B. D. Dushaw, M. A. Dzieciuch, B. M. Howe, J. A. Mercer, W. H. Munk, R. C. Spindel, and P. F. Worcester), 2005: Horizontal refraction of acoustic signals retrieved from the North Pacific Acoustic Laboratory billboard array data. J. Acoust. Soc. Am., 117, 1527–1537.

Vera, M. D., K. D. Heaney, and The NPAL Group (J. A. Colosi, B. D. Cornuelle, B. D. Dushaw, M. A. Dzieciuch, B. M. Howe, J. A. Mercer, W. H. Munk, R. C. Spindel, and P. F. Worcester), 2005: The effect of bottom interaction on transmissions from the North Pacific Acoustic Laboratory Kauai source. J. Acoust. Soc. Am., 117, 1624-1634.

Colosi, J. A., A. B. Baggeroer, B. D. Cornuelle, M. A. Dzieciuch, W. H. Munk, P. F. Worcester, B. D. Dushaw, B. M. Howe, J. A. Mercer, R. C. Spindel, T. G. Birdsall, K. Metzger, and A. M. G. Forbes, 2005: Analysis of multipath acoustic field variability and coherence in the finale of broadband basin-scale transmissions in the North Pacific Ocean. J. Acoust. Soc. Am., 117, 1538–1564.

Baggeroer, A. B., E. K. Scheer, and The NPAL Group (J. A. Colosi, B. D. Cornuelle, B. D. Dushaw, M. A. Dzieciuch, B. M. Howe, J. A. Mercer, W. H. Munk, R. C. Spindel, and P. F. Worcester), 2005: Statistics and vertical directionality of low-frequency ambient noise at the North Pacific Acoustic Laboratory site. J. Acoust. Soc. Am., 117, 1643-1665.

Andrew, R. K., B. M. Howe, J. A. Mercer, and The NPAL Group (J. A. Colosi, B. D. Cornuelle, B. D. Dushaw, M. A. Dzieciuch, B. M. Howe, J. A. Mercer, W. H. Munk, R. C. Spindel, and P. F. Worcester), 2005: Transverse horizontal spatial coherence of deep arrivals at megameter ranges. J. Acoust. Soc. Am., 117, 1511–1526.

Roux, P., W. A. Kuperman, and The NPAL Group (J. A. Colosi, B. D. Cornuelle, B. D. Dushaw, M. A. Dzieciuch, B. M. Howe, J. A. Mercer, W. Munk, R. C. Spindel, and P. F. Worcester), 2004: Extracting coherent wave fronts from acoustic ambient noise in the ocean. J. Acoust. Soc. Am., 116, 1995–2003.

Voronovich, A. G., V. E. Ostashev, and The NPAL Group (J. A. Colosi, B. D. Cornuelle, B. D. Dushaw, M. A. Dzieciuch, B. M. Howe, J. A. Mercer, R. C. Spindel, and P. F. Worcester), 2002: Experimental investigation of the horizontal refraction of acoustic signals in the ocean. Izvestiya, Atmospheric and Oceanic Physics, 38, 716-719.

Send, U., P. F. Worcester, B. D. Cornuelle, C. O. Tiemann, and B. Baschek, 2002: Integral measurements of mass transport and heat content in the Strait of Gibraltar from acoustic transmissions. Deep-Sea Res. Part II, 49, 4069-4095.

Dushaw, B. D., G. Bold, C.-S. Chiu, J. A. Colosi, B. D. Cornuelle, Y. Desaubies, M. A. Dzieciuch, A. M. G. Forbes, F. Gaillard, A. Gavrilov, J. Gould, B. M. Howe, M. Lawrence, J. F. Lynch, D. Menemenlis, J. A. Mercer, P. Mikhalevsky, W. H. Munk, I. Nakano, F. Schott, U. Send, R. C. Spindel, T. Terre, P. F. Worcester, and C. Wunsch, 2002: Observing the ocean in the 2000’s: A strategy for the role of acoustic tomography in ocean climate observation. Observing the Oceans in the 21st Century, C. J. Koblinsky and N. R. Smith, Eds., Bureau of Meteorology, 391-418.

Worcester, P. F., 2001: Tomography. Encyclopedia of Ocean Sciences, J. Steele, S. Thorpe, and K. Turekian, Eds., Academic Press Ltd., 2969-2986.

Tiemann, C. O., P. F. Worcester, and B. D. Cornuelle, 2001: Acoustic remote sensing of internal solitary waves and internal tides in the Strait of Gibraltar. J. Acoust. Soc. Am., 110, 798-811.

Tiemann, C. O., P. F. Worcester, and B. D. Cornuelle, 2001: Acoustic scattering by internal solitary waves in the Strait of Gibraltar. J. Acoust. Soc. Am., 109, 143-154.

Dzieciuch, M. A., P. F. Worcester, and W. H. Munk, 2001: Turning point filters: Analysis of sound propagation on a gyre-scale. J. Acoust. Soc. Am., 110, 135-149.

Pinkel, R., W. Munk, P. F. Worcester, B. D. Cornuelle, D. Rudnick, J. Sherman, J. H. Filloux, B. D. Dushaw, B. M. Howe, T. B. Sanford, C. M. Lee, E. Kunze, M. C. Gregg, J. B. Miller, J. M. Moum, D. R. Caldwell, M. D. Levine, T. Boyd, G. D. Egbert, M. A. Merrifield, D. S. Luther, E. Firing, R. Brainard, P. J. Flament, and A. D. Chave, 2000: Ocean mixing studied near Hawaiian Ridge. EOS, Trans. Amer. Geophys. Union, 81, 545, 553.

Orcutt, J., C. deGroot-Hedlin, W. Hodgkiss, W. Kuperman, W. Munk, F. Vernon, P. Worcester, E. Bernard, R. Dziak, C. Fox, C.-S. Chiu, C. Collins, J. Mercer, R. Odom, M. Park, D. Soukup, and R. Spindel, 2000: Long-term observations in acoustics — the Ocean Acoustic Observatory Federation. Oceanography, 13, 57-63.

Worcester, P. F., B. D. Cornuelle, M. A. Dzieciuch, W. H. Munk, B. M. Howe, J. A. Mercer, R. C. Spindel, J. A. Colosi, K. Metzger, T. G. Birdsall, and A. B. Baggeroer, 1999: A test of basin-scale acoustic thermometry using a large-aperture vertical array at 3250-km range in the eastern North Pacific Ocean. J. Acoust. Soc. Am., 105, 3185-3201.

Dushaw, B. D., B. M. Howe, J. A. Mercer, R. C. Spindel, and The ATOC Group (A. B. Baggeroer, T. G. Birdsall, C. Clark, J. A. Colosi, B. D. Cornuelle, D. Costa, B. D. Dushaw, M. A. Dzieciuch, A. M. G. Forbes, B. M. Howe, D. Menemenlis, J. A. Mercer, K. Metzger, W. H. Munk, R. C. Spindel, P. F. Worcester, and C. Wunsch), 1999: Multimegameter-range acoustic data obtained by bottom-mounted hydrophone arrays for measurement of ocean temperature. IEEE Journal of Oceanic Engineering, 24, 202-214.

Colosi, J. A. and The ATOC Group (A. B. Baggeroer, T. G. Birdsall, C. Clark, J. A. Colosi, B. D. Cornuelle, D. Costa, B. D. Dushaw, M. A. Dzieciuch, A. M. G. Forbes, B. M. Howe, D. Menemenlis, J. A. Mercer, K. Metzger, W. H. Munk, R. C. Spindel, P. F. Worcester, and C. Wunsch), 1999: A review of recent results on ocean acoustic wave propagation in random media: Basin scales. IEEE Journal of Oceanic Engineering, 24, 138-155.

Colosi, J. A., E. K. Scheer, S. M. Flatté, B. D. Cornuelle, M. A. Dzieciuch, W. H. Munk, P. F. Worcester, B. M. Howe, J. A. Mercer, R. C. Spindel, K. Metzger, T. G. Birdsall, and A. B. Baggeroer, 1999: Comparisons of measured and predicted acoustic fluctuations for a 3250-km propagation experiment in the eastern North Pacific Ocean. J. Acoust. Soc. Am., 105, 3202-3218.

ATOC Consortium (A. B. Baggeroer, T. G. Birdsall, C. Clark, J. A. Colosi, B. D. Cornuelle, D. Costa, B. D. Dushaw, M. Dzieciuch, A. M. G. Forbes, C. Hill, B. M. Howe, J. Marshall, D. Menemenlis, J. A. Mercer, K. Metzger, W. Munk, R. C. Spindel, D. Stammer, P. F. Worcester, and C. Wunsch), 1999: Reply to ‘Heat content changes in the Pacific Ocean,’ by K. Kelly et al. Science, 284, 1735a.

Dushaw, B. D. and P. F. Worcester, 1998: Resonant diurnal internal tides in the North Atlantic. Geophys. Res. Lett., 25, 2189-2192.

ATOC Consortium (A. B. Baggeroer, T. G. Birdsall, C. Clark, J. A. Colosi, B. D. Cornuelle, D. Costa, B. D. Dushaw, M. Dzieciuch, A. M. G. Forbes, C. Hill, B. M. Howe, J. Marshall, D. Menemenlis, J. A. Mercer, K. Metzger, W. Munk, R. C. Spindel, D. Stammer, P. F. Worcester, and C. Wunsch), 1998: Ocean climate change: Comparison of acoustic tomography, satellite altimetry, and modeling. Science, 281, 1327-1332.

Sutton, P. J., W. M. L. Morawitz, P. F. Worcester, and B. D. Cornuelle, 1997: Temperature evolution of the upper ocean in the Greenland Sea January to March 1989. J. Geophys. Res., 102, 27861-27874.

Fisher, F. H. and P. F. Worcester, 1997: Part IV, Underwater Sound, Chapter 35 : Essential Oceanography. Encyclopedia of Acoustics, M. Crocker, Ed., John Wiley & Sons, Inc., New York, 381-389.

Dushaw, B. D., G. D. Egbert, P. F. Worcester, B. D. Cornuelle, B. M. Howe, and K. Metzger, 1997: A TOPEX/POSEIDON global tidal model (TPXO.2) and barotropic tidal currents determined from long-range acoustic transmissions. Prog. Oceanog., 40, 337–367.

Morawitz, W. M. L., P. J. Sutton, P. F. Worcester, B. D. Cornuelle, J. F. Lynch, and R. Pawlowicz, 1996: Three-dimensional observations of a deep convective chimney in the Greenland Sea during winter 1988/1989. J. Phys. Oceanogr., 26, 2316–2343.

Morawitz, W. M. L., B. D. Cornuelle, and P. F. Worcester, 1996: A case study in three-dimensional inverse methods: Combining hydrographic, acoustic, and moored thermistor data in the Greenland Sea. J. Atmos. Oceanic Tech., 13, 659-679.

Cornuelle, B. D. and P. F. Worcester, 1996: Ocean acoustic tomography: Integral data and ocean models. Modern Approaches to Data Assimilation in Ocean Modeling, P. Malanotte-Rizzoli, Ed., Elsevier Science BV, 97-115.

Pawlowicz, R., J. F. Lynch, W. B. Owens, P. F. Worcester, W. M. L. Morawitz, and P. J. Sutton, 1995: Thermal evolution of the Greenland Sea Gyre in 1988-89. J. Geophys. Res., 100, 4727-4750.

Munk, W. H., P. F. Worcester, and C. Wunsch, 1995: Ocean Acoustic Tomography. Cambridge University Press, 433 pp.

Dushaw, B. D., B. D. Cornuelle, P. F. Worcester, B. M. Howe, and D. S. Luther, 1995: Barotropic and baroclinic tides in the central North Pacific Ocean determined from long-range reciprocal acoustic transmissions. J. Phys. Oceanogr., 25, 631-647.

Worcester, P. F., B. D. Cornuelle, J. A. Hildebrand, W. S. Hodgkiss, T. F. Duda, J. Boyd, B. M. Howe, J. A. Mercer, and R. C. Spindel, 1994: A comparison of measured and predicted broadband acoustic arrival patterns in travel time-depth coordinates at 1000-km range. J. Acoust. Soc. Am., 95, 3118-3128.

Sutton, P., W. M. L. Morawitz, B. D. Cornuelle, G. Masters, and P. F. Worcester, 1994: Incorporation of acoustic normal mode data into tomographic inversions in the Greenland Sea. J. Geophys. Res., 99, 12487-12502.

Guoliang, J., J. F. Lynch, R. Pawlowicz, and P. F. Worcester, 1994: Acoustic scattering losses in the Greenland Sea marginal ice zone during the 1988-89 tomography experiment. J. Acoust. Soc. Am., 96, 3045-3053.

Dushaw, B. D., P. F. Worcester, B. D. Cornuelle, and B. M. Howe, 1994: Barotropic currents and vorticity in the central North Pacific Ocean during summer 1987 determined from long-range reciprocal acoustic transmissions. J. Geophys. Res., 99, 3263-3272.

AMODE-MST Group (T. G. Birdsall, J. Boyd, B. D. Cornuelle, B. M. Howe, R. Knox, J. A. Mercer, K. Metzger, R. C. Spindel, and P. F. Worcester), 1994: Moving ship tomography in the North Atlantic. EOS, Trans. Amer. Geophys. Union, 75, 17, 21 and 23.

Worcester, P. F., J. F. Lynch, W. M. L. Morawitz, R. Pawlowicz, P. J. Sutton, B. D. Cornuelle, O. M. Johannessen, W. H. Munk, W. B. Owens, R. Shuchman, and R. C. Spindel, 1993: Evolution of the large-scale temperature field in the Greenland Sea during 1988-1989 from tomographic measurements. Geophys. Res. Letters, 20, 2211-2214.

Sutton, P. J., P. F. Worcester, G. Masters, B. D. Cornuelle, and J. F. Lynch, 1993: Ocean mixed layers and acoustic pulse propagation in the Greenland Sea. J. Acoust. Soc. Am., 94, 1517-1526.

Lynch, J. F., H. X. Wu, R. Pawlowicz, P. F. Worcester, R. E. Keenan, H. C. Graber, O. M. Johannessen, P. Wadhams, and R. A. Shuchman, 1993: Ambient noise measurements in the 200-300-Hz band from the Greenland Sea Tomography Experiment. J. Acoust. Soc. Am., 94, 1015-1033.

Dushaw, B. D., P. F. Worcester, B. D. Cornuelle, and B. M. Howe, 1993: Variability of heat content in the central North-Pacific in summer 1987 determined from long-range acoustic transmissions. J. Phys. Oceanogr., 23, 2650-2666.

Dushaw, B. D., P. F. Worcester, B. D. Cornuelle, and B. M. Howe, 1993: On equations for the speed of sound in seawater. J. Acoust. Soc. Am., 93, 255-275.

Cornuelle, B. D., P. F. Worcester, J. A. Hildebrand, W. S. Hodgkiss, T. F. Duda, J. Boyd, B. M. Howe, J. A. Mercer, and R. C. Spindel, 1993: Ocean acoustic tomography at 1000-km range using wavefronts measured with a large-aperture vertical array. J. Geophys. Res., 98, 16,365-16,377.

Duda, T. F., S. M. Flatté, J. A. Colosi, B. D. Cornuelle, J. A. Hildebrand, W. S. Hodgkiss, P. F. Worcester, B. M. Howe, J. A. Mercer, and R. C. Spindel, 1992: Measured wave-front fluctuations in 1000-km pulse propagation in the Pacific Ocean. J. Acoust. Soc. Am., 92, 939-955.

Worcester, P. F., B. D. Cornuelle, and R. C. Spindel, 1991: A review of ocean acoustic tomography: 1987-1990. Reviews of Geophysics, Supplement, U.S. National Report to the International Union of Geodesy and Geophysics 1987-1990, 557-570.

Spindel, R. C. and P. F. Worcester, 1990: Ocean acoustic tomography. Scientific American, 263, 94-99.

Munk, W., R. Revelle, P. Worcester, and M. Zumberge, 1990: Strategy for future measurements of very-low-frequency sea level change. Studies in Geophysics, Sea Level Change, C. o. P. S. Geophys. Study Committee, Math. and Resources, Natl. Res. Council, Ed., National Academy of Sciences Press, 221-227.

Greenland Sea Project Group, 1990: Greenland Sea Project—A venture toward improved understanding of the oceans' role in climate. EOS, Trans. Amer. Geophys. Union, 71, 750-751, 754-755.

Guoliang, J. and P. F. Worcester, 1989: The feasibility of measuring ocean pH by long range acoustics. J. Geophys. Res., 94, 4749-4756.

Cornuelle, B. D., W. H. Munk, and P. F. Worcester, 1989: Ocean acoustic tomography from ships. J. Geophys. Res., 94, 6232-6250.

Munk, W. H. and P. F. Worcester, 1988: Ocean acoustic tomography. Oceanography, 1, 8-10.

Howe, B. M., P. F. Worcester, and R. C. Spindel, 1987: Ocean acoustic tomography: Mesoscale velocity. J. Geophys. Res., 92, 3785-3805.

Spindel, R. C. and P. F. Worcester, 1986: Technology in ocean acoustic tomography. Marine Tech. Soc. J., 20, 68-72.

Worcester, P. F., R. C. Spindel, and B. M. Howe, 1985: Reciprocal acoustic transmissions: Instrumentation for mesoscale monitoring of ocean currents. IEEE Journal of Oceanic Engineering, OE-10, 123–137.

Worcester, P. F., 1985: Remote sensing of the ocean using acoustic tomography. Advances in Remote Sensing Retrieval Methods, H. E. F. A. Deepak, and M.T. Chahine, Ed., A. Deepak Publishing, 1-11.

Cornuelle, B., C. Wunsch, D. Behringer, T. G. Birdsall, M. Brown, R. Heinmiller, R. Knox, K. Metzger, W. Munk, J. Spiesberger, R. Spindel, D. Webb, and W. P., 1985: Tomographic maps of the ocean mesoscale. Part 1: Pure acoustics. J. Phys. Oceanogr., 15, 133-152.

Spiesberger, J. L. and P. F. Worcester, 1983: Perturbations in travel time and ray geometry due to mesoscale disturbances: A comparison of exact and approximate calculations. J. Acoust. Soc. Am., 74, 219-225.

Ocean Tomography Group (D. Behringer, T. Birdsall, M. Brown, B. Cornuelle, R. Heinmiller, R. Knox, K. Metzger, W. Munk, J. Spiesberger, R. Spindel, D. Webb, P. Worcester, and C. Wunsch), 1982: A demonstration of ocean acoustic tomography. Nature, 299, 121-125.

Worcester, P. F., G. O. Williams, and S. Flatté, 1981: Fluctuations of resolved acoustic multipaths at short range in the ocean. J. Acoust. Soc. Am., 70, 825-840.

Worcester, P. F., 1981: An example of ocean acoustic multipath identification at long range using both travel time and vertical arrival angle. J. Acoust. Soc. Am., 70, 1743-1747.

Spiesberger, J. L. and P. F. Worcester, 1981: Fluctuations of resolved acoustic multipaths at long range in the ocean. J. Acoust. Soc. Am., 70, 565-576.

Munk, W. H., P. F. Worcester, and F. Zachariasen, 1981: Scattering of sound by internal wave currents: The relation to vertical momentum flux. J. Phys. Oceanogr., 11, 442-454.

Brown, M. G., W. H. Munk, J. L. Spiesberger, and P. F. Worcester, 1980: Long-range acoustic transmission in the Northwest Atlantic. J. Geophys. Res., 85, 2699–2703.

Worcester, P. F., 1979: Reciprocal acoustic transmission in a midocean environment: Fluctuations. J. Acoust. Soc. Am., 66, 1173–1181.

Worcester, P. F., 1977: Reciprocal acoustic transmission in a mid-ocean environment. J. Acoust. Soc. Am., 62, 895–905.

Munk, W. H. and P. F. Worcester, 1976: Monitoring the ocean acoustically. Science, Technology, and The Modern Navy, Thirtieth Anniversary 1946-1976, ONR, 497–508.

Moore, A. R., R. W. Smith, and P. F. Worcester, 1969: Off-axis acousto-electric domains in CdS. IBM J. Res. Development, 13, 503–506.