Peter Worcester

Researcher

Room: Revelle Lab 2204

Institute of Geophysics and Planetary Physics,
Scripps Institution of Oceanography,
University of California San Diego,
La Jolla, CA 92093-0225, USA.

Telephone: (858) 534-4688

Email: pworcester@ucsd.edu

Research Summary for 2006: Download PDF (546.201KB)

Research Interests:

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

Courses Taught:

• SIO299 (Research)

Recent publications: ^†

• Worcester, P. F., W. H. Munk, and R. C. Spindel, 2005: Acoustic remote sensing of ocean gyres. Acoustics Today, 1, 11-17.
• 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., 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.
• 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., 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.
• 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.
• 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.
• Worcester, P. F., 2001: Tomography. Encyclopedia of Ocean Sciences, J. Steele, S. Thorpe, and K. Turekian, Eds., Academic Press Ltd., 2969-2986.
• 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.
• 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.
• 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.
• Worcester, P. F. and R. C. Spindel, 2005: North Pacific Acoustic Laboratory. J. Acoust. Soc. Am., 117, 1499-1510.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• Spindel, R. C. and P. F. Worcester, 1990: Ocean acoustic tomography. Scientific American, 263, 94-99.
• Spindel, R. C. and P. F. Worcester, 1986: Technology in ocean acoustic tomography. Marine Tech. Soc. J., 20, 68-72.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• Munk, W. H., P. F. Worcester, and C. Wunsch, 1995: Ocean Acoustic Tomography. Cambridge University Press, 433 pp.
• Munk, W. H. and P. F. Worcester, 1988: Ocean acoustic tomography. Oceanography, 1, 8-10.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• Howe, B. M., P. F. Worcester, and R. C. Spindel, 1987: Ocean acoustic tomography: Mesoscale velocity. J. Geophys. Res., 92, 3785-3805.
• 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.
• Guoliang, J. and P. F. Worcester, 1989: The feasibility of measuring ocean pH by long range acoustics. J. Geophys. Res., 94, 4749-4756.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• Dushaw, B. D. and P. F. Worcester, 1998: Resonant diurnal internal tides in the North Atlantic. Geophys. Res. Lett., 25, 2189-2192.
• 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.
• 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.
• Cornuelle, B. D., W. H. Munk, and P. F. Worcester, 1989: Ocean acoustic tomography from ships. J. Geophys. Res., 94, 6232-6250.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.