Charles Megnin

(504) 522-3211

charles [at] neworleansdarkroom [dot] com

www.neworleansdarkroom.com

Professional Experience

08/2003 - present	Founder, The Darkroom, New Orleans Center for the Photographic Arts
Creates a pluri-disciplinary arts center including: A fully networked state-of-the-art digital darkroom A traditional b&w public darkroom A photographic art gallery A professional b&w photographic lab A retail space
02/2003 - 08/2003	Assistant Professor of Physics	University of New Orleans, Dept of Physics, New Orleans, LA
08/2002 - 01/2003	Post-Doctoral Researcher	University of New Orleans, Dept of Physics, New Orleans, LA
Applied research in marine geophysics
Velocity inversion Collection and processing of deep-towed multi-channel seismic reflection data Processing of navigation data

10/2000 - 10/2001	Software Designer	HandsOn Network inc., Oakland, CA
Design and development of JAVA-based enterprise software.
Implementation of database storage and retrieval components (Entreprise Java Beans, JDBC, SQL) Design and implementation of graphical user interfaces Network programming Integration of XML data in the code base, XSLT processing

1999 - 2000	Post-Doctoral Fellow	UC Berkeley Seismological Laboratory, Berkeley, CA
Developed a parallel and automated system to determine location, magnitude and source mechanism of California earthquakes in real time.
Earthquake data processing (filtering, deconvolution). Parallelization of the existing code base.

1994 - 1999	Graduate Student Researcher	UC Berkeley Seismological Laboratory, Berkeley, CA
Whole mantle tomography. Seismic data selection and processing. Inversion for the source and elastic structure. Location of hypocenter and determination of magnitude for local earthquakes and teleseisms. Response to the press and to public interest. Handled relations with the Spanish media.

1995 - 1996	Graduate Student Instructor	UC Berkeley, Dept of Geology & Geophysics, Berkeley, CA
Mathematical Methods in the Earth Sciences, Geodynamics.

1993 - 1994	Teaching and Research Assistant	University of New Orleans, Dept of Physics, New Orleans, LA
Research: Wave propagation Teaching: Freshman/Sophomore Physics

Academic Qualifications

1999	PhD, Geophysics	University of California, Berkeley
		Advisor: Barbara Romanowicz
1994	MS, Physics	University of New Orleans
		Advisor: Joe Murphy
1992	BS, Geophysics	University of New Orleans
		minor mathematics, minor physics

Publications

F. Tajima,, C. Mégnin , D. Dreger and B. Romanowicz, "Feasibility of Real-Time Broadband Waveform Inversion for Simultaneous Moment Tensor and Centroid Location Determination", Bull. Seism. Soc. Am., 92, No 2, 739-750, 2002.
Mégnin C. and B. Romanowicz " A 3D model of shear velocity in the mantle from the inversion of waveforms of body, surface, and higher mode waveforms", Geophys. J. Int., 143, 709-728, 12/2000.
Mégnin C. and B. Romanowicz "A comparison between tomographic and geodynamic models of the earth's mantle", History and dynamics of plate motions, AGU Geophysical Monograph Series 121, 257-276, 2000.
Clévédé, E., C. Mégnin, B. Romanowicz and P. Lognonné, "Seismic waveform modeling and surface wave tomography in a three-dimensional Earth: asymptotic and non-asymptotic approaches", Phys. Earth Planet. Int., 119, 37-56, Apr. 2000.
H. Igel, N. Takeuchi, R.J. Geller, Mégnin C., H.-P. Bunge, Clévédé, E., J. Dalkolmo, B. Romanowicz, "The COSY Project: Verification of global 3-D Seismic modeling algorithms", Phys. Earth Planet. Int., 119, 3-23, Apr. 2000.
Mégnin C. and B. Romanowicz "The effects of the theoretical formalism and data selection on mantle models derived from waveform tomography", Geophys. J. Int., 138, 366-380, August 1999.
Mégnin C. "The shear velocity structure of the mantle from the inversion of time-domain waveform data", Ph.D. thesis, UC Berkeley, 1999.
Mégnin C., H.-P. Bunge, B. Romanowicz and M. A. Richards, "Imaging 3-D Spherical Convection Models, What Can Seismic Tomography Tell Us About Mantle Dynamics?", Geophys. Res. Lett., 24, No 11, 1299-1303, 1997.
Mégnin C. "Topology of the Eigenvalue Spectrum in a Strongly Upward Refracting Ocean with an Overlying Ice Layer", Masters thesis, University of New Orleans, Department of Physics, 1994.

Selected Meeting Presentations

Mégnin C. and B. Romanowicz, "The 3D shear velocity structure of the mantle from the inversion of waveform data", (EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION ; Vol. 80, No. 46, Suppl., p. F717), 1999.
Tajima, F., C. Mégnin, D. Dreger, B. Romanowicz and R. Uhrhammer, "Simultaneous determination of earthquake location and moment tensor using waveform data from a sparse regional network", (EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION ; Vol. 80, No. 46, Suppl., p. F660), 1999.
Mégnin C. and B. Romanowicz, "A model of 3D shear velocity in the mantle", IRIS meeting, Yosemite Park, California, 1999.
Mégnin C. and B. Romanowicz , "Optimally accurate images of the mantle from the inversion of high quality waveform data", (EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION ; Vol. 79, No. 45, Suppl., p. F628), 1998.
Mégnin, C., E. Clévédé, B. Romanowicz and P. Lognonné, "Asymptotic and non-asymptotic approaches to the modeling of waveforms in a 3D earth: implications for mantle tomography", SEDI meeting, Tours, France, p. 54, 1998.
Romanowicz B. and C. Mégnin, "Whole mantle models of S velocity derived using 2D and 3D kernels", SEDI meeting, Tours, France, p. 33, 1998.
Mégnin C. and B. Romanowicz, "Improvements in waveform inversion techniques with applications to whole mantle structure", (EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION ; Vol. 78, No. 46, Suppl., p. F460), 1997.
Clévédé, E., C. Mégnin and B. Romanowicz "Accurate waveform modeling of long-period seismic signal", (EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION ; Vol. 78, No. 46, Suppl., p. F424), 1997.
Mégnin C. and B. Romanowicz, "Synthetic seismograms using nonlinear asymptotic coupling theory", IASPEI meeting, Thessaloniki, Greece, p. 358, 1997.
Romanowicz B. and C. Mégnin, "3D models of S wave velocity, anisotropy and attenuation in the mantle", IASPEI meeting, Thessaloniki, Greece, p. 276, 1997.
Mégnin C., H.-P. Bunge, B. Romanowicz, M. A. Richards and M.S.T. Bukowinski, "Comparisons between Seismic and Geodynamic Models of Earth's Mantle", Chapman conference, History and Dynamics of Plate Motions, 1997.
Romanowicz B., C. Mégnin and L. Bréger, "Constraining Upper Mantle Anisotropic and Anelastic Structure and Whole Mantle Elastic Structure", Chapman conference, History and Dynamics of Plate Motions, 1997.
Romanowicz B., C. Mégnin and X.D. Li, "Waveform Inversion for Mantle Elastic and Anelastic Structure", AMERICAN GEOPHYSICAL UNION, 1996 meeting.
Mégnin C. and B. Romanowicz, "Estimation of Inner Core Mode Splitting Functions Combining a Genetic Algorithm with a Direct Iterative Inversion Scheme" (EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION ; Vol. 76, No. 46, Suppl., p. 355), 1995.
Romanowicz B., X.D. Li, J. Durek and C. Mégnin "Constraints on inner core anisotropy from normal mode and travel time data",(EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION ; Vol. 76, No. 46, Suppl., p. 355), 1995.

Computer Skills

Languages: JAVA (incl. EJB, JDBC, Servlets, AWT, Swing), C, shellscript, MPI, SQL, Octave/Matlab, Mathematica, GMT.
OS: Linux, OS X, Solaris, Windows.
Markup: XML/XSL, HTML, WML.
Application servers: mySQL, Tomcat, Weblogic, CVS.

Miscellaneous

Fluent French, Spanish.
Developed a simulated annealing application with GUI distributed under GPL license (freshmeat.net/simanneal)
French citizen with permanent US resident status.

References

Dr Barbara Romanowicz, Director, UC Berkeley Seismological Laboratory
(barbara at seismo dot berkeley dot edu)
Dr Joseph Murphy, Chair, University of New Orleans dept of Physics
(JEMurphy at uno dot edu)
Dr Juliette Ioup, Professor, University of New Orleans dept of Physics
(JIoup at uno dot edu)
Dr George Ioup, Professor, University of New Orleans dept of Physics
(GEIoup at uno dot edu)