HYPERMAG; an interactive, 2- and 2 1/2-dimensional gravity and magnetic modeling program; version 3.5

Abstract

Hypermag is an interactive, two and two-and-one-half dimensional forward modeling program for gravity and magnetic data (Fig. The 2D calculations are based on the standard Talwani algorithm (Talwani and others, 1959); the 2D gravity equations are from The 2.5D calculations are from Cady (1980). Hypermag is written in FORTRAN 77 and references Calcomp-style graphics routines (i.e., PLOT, PLOTS, SYMBOL) as described in Appendix C. Hypermag allows interactive editing of the model bodies on an X-windows screen and can produce PostScriptstyle plot files compatible with Adobe Illustrator and other plotting programs as well as numerous graphic output devices. Hypermag can read models in the ASCII format used by Mike Webring's Saki Hypermag was originally released in 1983 as Version 1.3