New version of the generic mapping tools

An updated, new version (3.0) of the Generic Mapping Tools (GMT) has just been released. GMT is a public domain collection of UNIX tools that contains programs to manipulate (x,y) and (x,y,z) data and to generate PostScript illustrations, including simple x‐y diagrams, contour maps, color images, and artificially illuminated, perspective, shaded‐relief plots using a variety of map projections [ Wessel and Smith , 1991]. GMT has been installed on super computers, workstations and personal computers, all running some flavor of UNIX. We estimate that approximately 5000 scientists worldwide are currently using GMT in their work.