GGSD Program Details for VIEWSEIS

VIEWSEIS

Category	Geophysics (surface)
Publisher	Earthfx Incorporated
Platform	DOS
Status	Commercial
Description	VIEWSEIS is a program for compressional or shear wave seismic refraction analysis using the GRM, Delay Time or Time Intercept methods of analysis. First break picking - load 12 to 96 channel trace records from all common seismograph file formats. Make break picks automatically or with the mouse; assign layer numbers and review velocities during picking. Sum polarised records to cancel compressional wave energy from shear wave refraction records. Interactively assign arrivals to one of 9 subsurface layers. Model theoretical arrivals and GRM XY from user defined layer thicknesses, velocities and spread geometry. Many arrival time display format options, with interactive zooming and panning. Phantom any arrival, including partial forward and reverse segments from mid-shots. Velocity analysis functions to determine lateral refractor velocity variation and optimum GRM XY. Time-depth migration analysis. Migrate to depth using a variety of methods, which can be different for each layer. Display up to 5 data analysis windows simultaneously. Print preview and output to DXF file, printers or plotters. Fully mouse driven, with VGA, SVGA, and LIM4 Expanded Memory support. On-line help, and both synthetic and real data tutorials. Free demonstration version available on WWW.
Data formats supported	Drawings : DXF
Supplier in Canada	Earthfx Incorporated