A Reminder

If you feel it is appropriate, you may consider paying us back by citing our EOS articles on GMT (and perhaps also our Geophysics article on the GMT program surface) when you publish papers containing results or illustrations obtained using GMT. The EOS articles on GMT are

• Wessel, P., and W. H. F. Smith, New, improved version of Generic Mapping Tools released, EOS Trans. Amer. Geophys. U., vol. 79 (47), pp. 579, 1998.

• Wessel, P., and W. H. F. Smith, New version of the Generic Mapping Tools released, EOS Trans. Amer. Geophys. U., vol. 76 (33), pp. 329, 1995.

• Wessel, P., and W. H. F. Smith, New version of the Generic Mapping Tools released, EOS Trans. Amer. Geophys. U. electronic supplement, http://www.agu.org/eos_elec/95154e.html, 1995.

• Wessel, P., and W. H. F. Smith, Free software helps map and display data, EOS Trans. Amer. Geophys. U., vol. 72 (41), pp. 441, 445-446, 1991.

The article in Geophysics on surface is

• Smith, W. H. F., and P. Wessel, Gridding with continuous curvature splines in tension, Geophysics, vol. 55 (3), pp. 293-305, 1990.

A few GMT users take the time to write us letters, telling us of the difference GMT is making in their work. We appreciate receiving these letters. On days when we wonder why we ever released GMT we pull these letters out and read them. Seriously, as financial support for GMT depends on how well we can ``sell'' the idea to funding agencies and our superiors, letter-writing is one area where GMT users can affect such decisions by supporting the GMT project.