Regional Seismograms: Attenuation and Scattering
Abstract
The objective of this study was to examine the influence of attenuation and scattering on regional high frequency seismograms. This report consists of a Ph.D. thesis, a paper, and three preprints of papers either submitted or in preparation, on work supported by this project; they include both basic work on attenuation, scattering and anisotropy, and applications to regional seismograms. The Ph.D. thesis discusses the application of the finite difference method to problems in scattering and attenuation due to scattering in a random medium. In the first three chapters of the thesis, the application of Born theory to scattering and scattering attenuation is assessed. The fourth chapter to explain the observed scattering phenomena at the NORSAR and NORESS arrays in Norway. The second section is a paper that examines the radiation pattern of explosive sources in anisotropic media. The third section evaluates the problem of Lg blockage across crustal extension zones by the method of coupled modes. The fourth section is concerned with the fundamental problem of scattering of the reflected wave from a rough interface. The final section applies transport theory to Rg data from a U.S. Geological Survey experiment in Maine.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 06, 1992
- Accession Number
- ADA254348
Entities
People
- Anton M. Dainty
- Batakrishna Mandal
- Chengbin Peng
- Craig A. Schultz
- Edmond E. Charrette
- M. Nafi Toksöz
- Ningya Cheng
Organizations
- Massachusetts Institute of Technology