Xgbm: An X-Windows System to Compute Gaussian Beam Synthetic Seismograms. Version 1.1 (User's Guide)

Abstract

This manual is to introduce the user to the Xgbm program and its associated module GBseis. The two programs in tandem are designed to allow the user to create and manipulate intricate, laterally heterogeneous, two dimensional (2-D) velocity models of the Earth's interior and them to compute synthetic seismograms for those models using Gaussian beams. The user is referred to Weber (1988a) for an outline of the theory of Gaussian beams as implemented here and a definition of some of the terms used throughout this manual. Xgbm and GBseis may be run either in conjunction with the ISIS interprocesses communication (IPC) software available at the Center for Seismic Studies (CSS), a second IPC module distributed with Xgbm package, or as stand- alone programs. If either of the IPC software packages is utilized, interaction with the geotool data analysis program is possible, provided one is using geotool version v1.2 or higher. The software has recently been modified to interface with the Geographic Information Systems (GIS) at CSS.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1993
Accession Number
ADA268245

Entities

People

  • Ivan H. Henson
  • J. P. Davis

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Computations
  • Coordinate Systems
  • Directories
  • Discontinuities
  • Errors
  • Geographic Information Systems
  • Geographic Regions
  • Geometry
  • Graphics
  • Grids
  • Information Systems
  • Latitude
  • Longitude
  • Optical Lattices
  • Travel Time
  • Two Dimensional
  • Waves

Readers

  • Database Systems and Applications
  • Seismology
  • Wave Propagation and Nonlinear Chaotic Dynamics.