Portugal 2006

 Peter Gerstoft
Marine Physical Laboratory
University of California, San Diego
9500 Gilman Dr, La Jolla, CA 92093-0238
Ph (858) 534-7768. Fax (858)534-7641

My ftp-site

Directions to office
 santa
A good old one: I have now shaved and the kids are in university and high school.
Biography

 Special sessions on Geoacoustic Inversion
SAGA 5.4: Seismo-Acoustic inversion based on Genetic Algorithms and Metropolis-Hastings sampling: several ocean acoustic and electromagnetic codes are built-in for an automated inversion algorithm.
Cabrillo 1.0: A code for acoustic, elastic and poroelastic finite difference modeling of wave propagation using a Fourier Spectral method on a staggered grid.
Ocean acoustics library/ Other I maintain "the other" part of the ocean acoustics library.

Students and PostDocs
My schedule
2007 Photos on google         Family: (not updated since 2002)


 Publications: (Conference papers) [my papers in Google scholar]
2008
Seismic
- Traer, J, P Gerstoft, PD Bromirski, WS Hodgkiss, and LA Brooks, Shallow-water seismo-acoustic noise generation by Tropical Storms Ernesto and Florence, J Acoust. Soc. Am EL, in press. (PDF)
Ocean Acoustics:
- Gerstoft, P, WS Hodgkiss, M Siderius, CF Huang, CH Harrison (2008), Passive fathometer processing, J Acoust. Soc. Am, 123, 1297-1305. (PDF)
- Huang, CF, P Gerstoft and WS Hodgkiss, Effect of ocean sound speed uncertainty on matched-field geoacoustic inversion, J Acoust. Soc. Am, EL162-168 (2008). (PDF)
- Brooks, LA, P Gerstoft, and DP Knobles, Multichannel array diagnosis using noise cross-correlation, J Acoust. Soc. Am EL, submitted. (PDF)
- Jiang, YM, NR Chapman and P Gerstoft, Short range travel time geoacoustic inversion with vertical line array, J Acoust. Soc. Am EL, in press.  (PDF)
Radar:
- Yardim, C, P Gerstoft and WS Hodgkiss (2008),Tracking refractivity from clutter using Kalman and particle filters, IEEE Transaction Antenna and Propagation, 56, 1058-1066, DOI:10.1109/TAP.2008.919205. (PDF)

2007
Seismic
- Gerstoft, P, and T Tanimoto (2007), A year of microseisms in southern California, Geophys. Res. Lett., 34, L20304, doi:10.1029/2007GL031091. (PDF)
Ocean Acoustics:
- Huang, CF, P Gerstoft, and WS Hodgkiss, On the effect error correlation on matched-field geoacoustic inversion, J Acoust. Soc. Am.,121: EL64-EL69, DOI:10.1121/1.2424267, 2007. (PDF)
- Brooks, LA and P Gerstoft  (2007), Ocean acoustic interferometry, J. Acoust. Soc. Am., 121, 3377-3385, doi:10.1121/1.2723650. (PDF)
- Goh, YH,  P Gerstoft, WS. Hodgkiss, CF Huang,  Statistical estimation of transmission loss from geoacoustic inversion using a towed array, J. Acoust. Soc. Am, 122, 2571-2579, 2007. (PDF)
Radar:
- Vasudevan, S, RH Anderson, S Kraut, P Gerstoft, LT. Rogers, and JL. Krolik (2007), Recursive Bayesian electromagnetic refractivity estimation from radar sea clutter, Radio Sci., 42, RS2014, doi:10.1029/2005RS003423. (PDF)
- Yardim, C., P. Gerstoft, and W. S. Hodgkiss (2007), Statistical maritime radar duct estimation using hybrid genetic algorithm-Markov chain Monte Carlo method, Radio Sci., 42, RS3014, doi:10.1029/2006RS003561. (PDF)

2006
Seismic Katrina:
Westward Migration, Editors' Choice, Science, 29 September 2006
Hurricane Katrina's waves felt in California, New Scientist, 23 September 2006
When Katrina hit California, lay-paper about our observations.
- Gerstoft, P., MC Fehler, and KG Sabra, When Katrina hit California, Geophys. Res. Lett., 33, L17308, doi:10.1029/2006GL027270, 2006. (PDF)
Seismic noise:
- Curtis, A, P Gerstoft, H Sato, R Snieder, K Wapenaar. Seismic interferometry - turning noise into Signal. The Leading Edge, Vol 25, 1082-1092, 2006. Received "Honorable Mention" for best paper in TLE. (PDF)
- Gerstoft, P, KG Sabra, P Roux, WA Kuperman, and MC Fehler, Green’s functions extraction and surface wave tomography from microseisms in Southern California, Geophysics, 71, SI23-SI31, 2006. (PDF)
- Sabra, KG, P Roux, P Gerstoft, WA Kuperman, and MC Fehler, Extracting coherent coda arrivals from cross-correlations of long period seismic waves during the Mount St. Helens 2004 eruption, Geophys. Res. Lett., 33, L06313, doi:10.1029/2005GL025563, 2006. (PDF)
Radar:
- Yardim, C, P Gerstoft, and WS Hodgkiss, Estimation of radio refractivity from radar clutter using Bayesian Monte Carlo analysis, IEEE Transaction Antenna and Propagation, 54,1318- 1327, doi: 10.1109/TAP.2006.872673, 2006. (PDF)
Ocean Acoustics:
- Huang, CF, P Gerstoft, and WS Hodgkiss, Validation of statistical estimation of transmission loss in the presence of geoacoustic inversion uncertainty, J. Acoust. Soc. Am, 120, 1932-1941, 2006. (PDF)
- Thode, A, P Gerstoft, WC Burgess, K Sabra, M Guerra, D Stokes, M Noad, and DC Cato, A portable matched field processing system using passive acoustic time synchronization, IEEE Oceanic Engineering, 31(3), 696-710 July 2006. (PDF)
- Gerstoft, P, CF Huang, and WS Hodgkiss, Estimation of transmission loss in the presence of geoacoustic inversion uncertainty, IEEE Oceanic Engineering, 31, 299-307, April 2006. (PDF)
- Huang, CF, P Gerstoft, and WS Hodgkiss, Uncertainty analysis in matched-field geoacoustic inversion, J. Acoust. Soc. Am, 119, 197-207, 2006. (PDF)

2005
Seismic:
- Seismic noise can yield maps of Earth's crust, article in Science News 11 June 2005.
- Roux, P, KG Sabra, P Gerstoft, WA Kuperman, and MC Fehler, P-waves from cross correlation of seismic noise, AGU Geophysical Research Letters, 32, L19303, doi:10.1029/2005GL023803, 2005. (PDF)
- Sabra, KG, P Gerstoft, P Roux, WA. Kuperman, and MC. Fehler, Surface wave tomography from microseisms in Southern California, AGU Geophysical Research Letters, 32, L14311, doi:10.1029/2005GL023155, 2005. (PDF)
- Sabra, KG, P Gerstoft, P Roux, WA Kuperman, and MC Fehler, Extracting time-domain Green's function estimates from ambient seismic noise, AGU Geophysical Research Letters, 32, L03310, doi:10.1029/2004GL021862, 2005. (PDF)
Radar:
- Rogers, LT, M Jablecki, and P Gerstoft, Posterior distribution of a statistic of propagation loss estimated from radar sea clutter, Radar Science, Vol. 40, RS6005, doi:10.1029/2004RS003112, 2005. (PDF)
Ocean acoustics:
- Park, C, W Seong, and P Gerstoft, Geoacoustic inversion in time domain using ship of opportunity noise recorded on a horizontal array, J. Acoust. Soc . Am, 117, pp 1933-1941, 2005. (PDF)

2004
Radar:
- Gerstoft, P, WS Hodgkiss LT Rogers and M Jablecki, Probability distribution of low altitude propagation loss from radar sea-clutter data, Radio Science, 39, RS6006, doi:10.1029/2004/RS003077, 2004. (PDF)
Ocean Acoustics:
- Battle, D, P Gerstoft, WS Hodgkiss, WA Kuperman, and PL Nielsen, Bayesian model selection applied to self-noise geoacoustic inversion, J. Acoust. Soc . Am, 116, pp 2043-2056, 2004. (PDF)  view graphs
- Castor, K, P Gerstoft, P Roux, WA Kuperman, and BE McDonald Long range propagation of finite amplitude acoustic waves in an ocean waveguide, J. Acoust. Soc . Am, 116, pp 2004-2010, 2004.(PDF) Poster

2003
Radar:
- Gerstoft, P, LT Rogers, WS Hodgkiss, and JL Krolik, Inversion for refractivity parameters from radar sea clutter, Radio Science, Vol 38(3),  8053, doi:10.1029/2002RS002640, 2003. (PDF)
- Gerstoft, P, LT Rogers, WS Hodgkiss, and LJ Wagner, Refractivity estimation using multiple elevation angles, IEEE J Oceanic Engineering, 28 (3), 513-525, 2003. (PDF) View graphs
Ocean Acoustics:
- Gerstoft, P, WS Hodgkiss, WA Kuperman and HC Song, Phenomenological and global optimization inversion, IEEE J Oceanic Engineering, 28 (3), 342-354, July 2003. (PDF)
- Park, C, W Seong, P Gerstoft, and M Siderius, Timedomain geoacoustic inversion of high frequency chirps using a towed system, IEEE J Oceanic Engineering, 28 (3),468-478, July 2003. (PDF)
- Battle, D, P Gerstoft, WA Kuperman, WS Hodgkiss, and M Siderius, Geoacoustic inversion of tow-ship noise via near-field-matched-field processing, IEEE J. Oceanic Engineering, 28(3) , 456-467, 2003. (PDF)  View graphs
- Nielsen, PL, M Siderius, and P Gerstoft, Range-dependent geoacoustic inversion: Results from the inversion techniques workshop, IEEE J Oceanic Engineering, 28 (3), 414-423, July 2003. (PDF)
- Siderius, M, PL Nielsen, and P Gerstoft, Performance comparison between vertical and horizontal arrays for geoacoustic inversion, IEEE J Oceanic Engineering (3), 424-431, July 2003. (PDF)
- Song, HC, WA Kuperman, WS Hodgkiss, P Gerstoft, and JS Kim, Null Broadening with Snapshot-deficient Covariance Matrices, IEEE J Oceanic Engineering, 28, 2003. (PDF)
- Gerstoft, P, WS Hodgkiss, WA Kuperman, HC Song, M Siderius, and PL Nielsen, Adaptive beamforming of a towed array during a turn, IEEE J Oceanic Engineering, 28, 44-54, Jan 2003. (PDF) View graphs,

1998-2002
- Siderius, M, P Nielsen and P Gerstoft, Range-dependent seabed characterization by inversion of acoustic data from a towed receiver array," J. Acoust. Soc. Am., 112, pp. 1523-1535, 2002. (PDF)
- D'Spain,GL, GL Rovner, P Gerstoft, WA Kuperman, and WS Hodgkiss, Determination of waveguide invariance in general environments,  U.S. Navy J. Underwater Acoustics 51(1), 123-142, 2002.
- Gerstoft, P, GL D'Spain, WA Kuperman, and WS Hodgkiss, Calculating the waveguide invariant by ray-theoretic approaches, TM-468, Marine Physical Laboratory, University of California San Diego, 2001. (PDF)
- CF Mecklenbrauker and P Gerstoft, Objective functions for ocean acoustic inversion derived by likelihood methods, Journal of Computational Acoustics, 48(2), 259-270, 2000. (PDF)
- P Gerstoft, DF Gingras, LT Rogers and WS Hodgkiss, Estimation of radio refractivity structure using matched field array processing, IEEE J Antenna and Propagation 48, 345-356, 2000. (PDF) [view graphs]
- P Gerstoft, Assessment of Hydroacoustic Processing in the CTBT Release One Monitoring Software, International Data Center, Comprehensive Nuclear-Test-Ban Treaty Organization, Vienna, Austria, PTS/IDC-10 2000. (PDF)
view graph. (PDF)
- CF Mecklenbrauker, P Gerstoft, P.J. Chung, J.F. Bohme, Hypothesis testing for acoustic environmental models using likelihood ratio, J. Acoust. Soc. Am. 105, 1738--1748, 1999. (PDF)
- P Gerstoft, CABRILLO 1.0: Acoustic, elastic and poroelastic finite difference modeling, (PDF)
- P Gerstoft and CF Mecklenbrauker, Ocean acoustic inversion with estimation of a posteriori probability distributions, J. Acoust. Soc. Am. 104, 808--819, 1998. (PDF) view graphs
-M Siderius, P Gerstoft and P Nielsen, Broadband geo-acoustic inversion from sparse data using genetic algorithms, Journal of Computational Acoustics 6, 117-134, Oct 1998. (PDF)
- P Ratilal, P Gerstoft and JT Goh, Subspace approach to inversion by genetic algorithms  involving multiple frequencies, Journal of Computational Acoustics 6, 99-115 Oct 1998. (PDF)
- P Ratilal, P Gerstoft, YK Pong and JT Goh, Inversion of pressure data on a vertical array for seafloor geoacoustic properties, Journal of Computational Acoustics, 269-289, Oct 1998. (PDF)

1997.....
- P Gerstoft, "SAGA Users guide 2.0, an inversion software package," SACLANT Undersea Research Centre, SM-333, La Spezia, Italy, 1997.
[See the SAGA homepage]. A bound copy is available from SACLANTCEN
Some view graphs from Matched Field inversion for ocean acoustics and from electromagnetic matched field processing.
- DF Gingras, P Gerstoft and NL Gerr, Electromagnetic Matched field processing: Basic concepts and Tropospheric simulations, IEEE transaction on antenna and propagation, 45, 1536-1545, October 1997. (PDF)
- JT Goh, H Schmidt, P Gerstoft and W Seong, Benchmarks for validating range-dependent seismo-acoustic propagation codes, IEEE J. Oceanic Eng 22, 226--236, 1997. (PDF)
- G Haralabus and P Gerstoft, Source localization in shallow water using multi-frequency processing of shot data, SACLANTCEN SR-253, 1996. (PDF)
- J-P Hermand and P Gerstoft, Inversion of Broadband multitone acoustic data from the Yellow shark summer experiments, IEEE J Oceanic Eng. 21, 324-346, 1996. (PDF) [view graphs]
- P Gerstoft and DF Gingras, Parameter estimation using multi-frequency range-dependent acoustic data in shallow water, J Acoust. Soc. Am. 99, 2839-2850,1996.(PDF) [The array sonar data is available at the IEEE SP server]
- O Diachok, A Caiti, P Gerstoft and H Schmidt (Editors), Full field inversion methods in ocean and seismo-acoustics, (Kluwer, 1995).
- DF Gingras and P Gerstoft, Inversion for geometric and geoacoustic parameters in shallow water: Experimental results, J. Acoust. Soc. Am. 97, 3589--3598, 1995. (PDF)
- P. Gerstoft, Inversion of acoustic data using a combination of genetic algorithms and the Gauss-Newton approach, J. Acoust. Soc. Am. 97, 2181-2191, 1995. (PDF)
- P Gerstoft, Global Inversion by genetic algorithms for both source position and environmental parameters, J. of Computational Acoustics 2, 251--266, 1994. (PDF)
- P Gerstoft, Inversion of seismo-acoustic data using genetic algorithms and a posteriori probability distributions, J. Acoust. Soc. Am. 95, 770—782, 1994. (PDF)
- P Gerstoft and H Schmidt, A boundary element approach to ocean seismo-acoustic facet reverberation, J. Acoust. Soc. Am. 89, 1629--1642, 1991. (PDF)
- P Gerstoft and SO Hansen, A new tubing system for the measurement of fluctuating pressures, J of Wind Engineering and Industrial Aerodynamics, Vol 25(3), 335-354 March 1987. (PDF)
- P Gerstoft and AG Davenport, A simplified method for dynamic analysis of a guyed mast, J of Wind Engineering and Industrial Aerodynamics, Vol 23 (1-3): 487-499, 1986. (PDF)


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