• Home
• About
• ScrippsNews
• Magazine
• Research
• Students
• Ships
• Support Scripps
• Jobs at Scripps
• SIO Only

DE GROOT-HEDLIN, CATHERINE

Associate Research Geophysicist

Degrees:

• B.S., University of British Columbia, Canada
• M.S., University of Alberta, Canada
• Ph.D., UCSD, Scripps Institution of Oceanography

Research Interests:

• Geophysical inverse problems
• Numerical modeling methods for infrasound propagation
• Applications of infrasound and hydroacoustics to Nuclear Monitoring

Mentoring:

• Matoza, Robin (Graduate; 2007-2009)

2011 K. Walker, Shelby, R., M. Hedlin, de Groot-Hedlin, C., "Western U.S. Infrasonic Catalog: Illuminating Infrasonic Hotspots with the USArray, J. Geophys. Res. 116 (B12), B12305

2011, de Groot-Hedlin, C., M. Hedlin, K. Walker, “Finite difference synthesis of infrasound propagation through a windy, viscous atmosphere: Application to a bolide explosion detected by seismic networks”, Geophys. J. Int., doi: 10.1111/j.1365-246X.2010.04925.x.

2010, Walker, K, M. Hedlin, C de Groot-Hedlin, J. Vergoz, A. Le Pichon, D. Drob, The Source location of the 19 February 2008 Oregon Bolide using Seismic Networks and Infrasound Arrays, J. Geophys. Res. (Solid Earth), 115, B12329, doi:10.1029/2010JB007863

2010, Hedlin, M.A.H., D. Drob, K. Walker, C. de Groot-Hedlin, “A study of acoustic propagation from a large bolide in the atmosphere with a dense seismic network”, Journal of Geophysical Research (Solid Earth), 115, B11312, doi:10.1029/2010JB007669.

2010, de Groot-Hedlin, C., M. Hedlin, “Atmospheric variability and infrasound monitoring”, in “Infrasound monitoring for atmospheric studies”, ed. by A. Le Pichon, E. Blanc, and A. Hauchecorne, Springer Geosciences, p 475-507.

2009, Matoza, R.S., M.A. Garces, B.A. Chouet, L., D’Auria, M.A.H. Hedlin, C. de Groot-Hedlin, and G.P. Waite, “The source of infrasound associated with long-period events at Mount St. Helens”, accepted by Journal of Geophysical Research (Solid Earth), 114, B04305, doi:10.1029/2008JB006128.

2009, C. de Groot-Hedlin, D.K. Blackman, and C.S. Jenkins, “Effects of variability associated with the Antarctic Circumpolar Current on sound propagation in the ocean”, Geop. J. Int., 176, 478–490. doi: 10.1111/j.1365-246X.2008.04007.x

2008, de Groot-Hedlin, C.D., A Finite Difference solution to the Helmholtz equation in a radially symmetric waveguide; application to near-source scattering in ocean acoustics, J. Computational Acoustics, 16, 447-464.

2008, de Groot-Hedlin, C.D., Finite-difference synthesis of infrasound propagation through an absorbing atmosphere, J. Acoust. Soc. Am., 12, 1430-1441.

2008, de Groot-Hedlin, C.D., M.A.H. Hedlin, K.T. Walker, D. D. Drob, and M.A. Zumberge, Evaluation of infrasound signals from the shuttle Atlantis using a large seismic network, J. Acoust. Soc. Am., 12, 1442-1451.

2008, Herrin, E.T., Bass, H.E., B. Andre, R.L. Woodward, D. D. Drob, M.A.H. Hedlin, M.A. Garces, P.W. Golden, D.E. Norris, C.D. de Groot-Hedlin, K.T. Walker, C.A. L. Szurbela, R.W. Whitaker, and F.D. Shields, High-altitude infrasound calibration experiments, Acoustics Today, 4, 9-21.

2006, de Groot-Hedlin, C.D., 2006, Finite difference modeling of magnetotelluric fields: error estimates for uniform and non-uniform grids, Geophyics, 71, 97-106.

2005, de Groot-Hedlin, C.D., 2005, Estimation of the rupture length and velocity of the Great Sumatra earthquake of Dec 26, 2004 using hydroacoustic signals, Geop. Res. Lett., 32, L11303, doi:10.1029/2005GL022695.

2004, Blackman, D.K., C. de Groot-Hedlin, P. Harben, A. Sauter, and J.A. Orcutt, Testing low/verylow frequency acoustic sources for basin-wide propagation in the Indian Ocean, J.Acoust. Soc. Am., 116, 2057-2066.

2004, de Groot-Hedlin, C.D., 2004, Criteria for discretization of seafloor bathymetry when using a stairstep approximation: Application to computation of T-phase seismograms, J.Acoust. Soc. Am., 115(3), 1103-1113.

2004, de Groot-Hedlin, C.D., and S. Constable, Inversion of magnetotelluric data for 2D structure with sharp resistivity constrasts, Geophysics, 69, 78-86.

2001, de Groot-Hedlin, C.D., Excitation of T-phases by seafloor scattering, J.Acoust. Soc. Am., 109, 1944-1954.

2001, de Groot-Hedlin, C.D., and J.A. Orcutt, T-phase observations in northern California: Acoustic to seismic coupling at a weakly elastic boundary, PAGEOPH, 158, 513-530.

2000, J. Orcutt, C. de Groot-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, R. Spindel, Long-term observations in acoustics-the Ocean Acoustic Observatory Federation, Oceanography, 13, 57-63.

2000, de Groot-Hedlin, C.D., Smooth inversion of induction logs for conductivity models with mud filtrate invasion, Geophysics, 65, 1468-1475.

1999, de Groot-Hedlin, C.D., and J.A. Orcutt, Synthesis of earthquake-generated T-waves, Geop. Res. Lett., 26, 1227-1230.

1998, de Groot-Hedlin, C.D., and F.L. Vernon, An evolutionary programming method for estimating layered velocity structure, Bulletin of the Seismological Society of America, 88, 1023-1035.

1998, Y. Shen, A. Sheehan, K. Duecker, C. de Groot-Hedlin, H. Gilbert, Mantle discontinuity structure beneath the southern East Pacific Rise (MELT experiment region) from P-to-S converted phases, Science, 280, 1232-1235.

1995, de Groot-Hedlin, C.D., Inversion for regional 2-D resistivity structure in the presence of galvanic scatterers, Geophysical Journal International, 122, 877-888.

1993, de Groot-Hedlin, C.D., On: Removal of static shift in two dimensions by regularized inversion (C. deGroot Hedlin) by B.K. Sternberg with reply by author, Geophysics, 58, 599.

1993, de Groot-Hedlin, C.D.,and Constable, S.C., Occam's inversion and the North American Central Plains Anomaly, J. Geomag. Geoelectr, 45, 985-999.

1991, de Groot-Hedlin,C.D., Removal of static shift in two dimensions by regularized inversion, Geophysics, 56, 2102-2106.

1990, de Groot-Hedlin, C.D., and Constable, S.C., Occam's inversion to generate smooth, two-dimensional models from magnetotelluric data, Geophysics, 55, 1613-1624.

1987, de Groot-Hedlin, C.D., and Rostoker, G., Magnetic signatures of precursors to substorm expansive phase onset, Journal of Geophysical Research, 92, 5845-5856.