James Freeman Gilbert


1990 Balzan Prize for Geophysics (solid earth)


JAMES FREEMAN GILBERT was born at Vincinnes, Indiana, on August 9, 1931; he is a U.S. citizen;
obtained his B.Sc. (1953) and Ph.D. (1956) degrees at the Massachusetts Institute of Technology;
1956/57 Research Associate, Massachusetts Institute of Technology;
1957/59 Assistant Research Geophysicist and Professor, Institute of Geophysics, University of California, Los Angeles;
1960/61 Senior Research Geophysicist, Texas Instruments, Dallas, Texas;
1961 - present Professor of Geophysics, Institute of Geophysics and Planetary Physics, University of California, San Diego;
1988 - present Chairman Graduate Department, Scripps Institution of Oceanography, University of California, San Diego;
Member US National Academy of Sciences (1973); Gold Medal Royal Astronomical Society (1981), Arthur L. Day Medal Geological Society of America (1985) and other awards.
Some of his major publications are:
— Knopoff, L. e F. Gilbert, First motions from seismic sources, Bull.Seism.Soc.Am.,50, 117- 134, 1960;
— Gilbert, J.F., e G.J.F. MacDonald, Free oscillations of the earth: I. Toroidal oscillations, J. Geophys. Res., 65, 675-693, 1960;
— Knopoff. L. e F. Gilbert, Diffraction of elastic waves by the core of the Earth, Bull. Seism. Soc. Am., 51, 35-50, 1961;
— Gilbert, F., e G. Backus, Propagator matrices in elastic wave and vibration problems, Geophysics, 31, 326-332, 1966;
— Backus, G. e F. Gilbert, Numerical applications of a formalism for geophysical inverse problems, Gophys. J.R. astr. Soc., 13, 247-276, 1967;
— Gilbert, F., Ranking end winnowing gross Earth data for inversion and resolution, Geophys. J. R. astr. Soc., 23, 125-128, 1971;
— Gilbert, F., e D. Helmberger, Generalized ray theory for a layered sphere, J. Roy. astr. Soc., 27, 57-80, 1972;
— Johnson, L.E., e F. Gilbert, Inversion and inference for teleseismic ray data, in Methods of Computational Physics, 12, ed. B. Bolt, McGraw Hill, 1972:
— Gilbert, F., Derivation of source parameters from low frequencv spectra. Phil. Trans. Roy. Soc. London, A, 274, 369-371, 1973;
— Dziewonski, A.M., e F. Gilbert, The effect on travel times of small, aspherical perturbations, Geophys. J. R. astr. Soc., 44, 7-17, 1976;
— Gilbert, F., e R. Buland, An enhanced deconvolution procedure for retrieving the seismic moment tensor from a sparse network, Geophys. J. R. astr. Soc., 47. 25 1-255, 1976;
— Masters, G., T.H. Jordan, P.G. Silver, e F. Gilbert, Aspherical earth structure from fundamental spheroidal-mode data. Nature, 298. 609-613, 1982;
— Park, J. e F. Gilbert, Coupled free oscillations of an aspherical dissipative, rotating Earth:
— Galerkin theory, J. Geophys.Res., 91. 7241-7260, 1986.