seis
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Distributed under the GNU Lesser Public License; see file LICENSE.TXT in main GMT directory. GMT 5 version converted these tools to modules. ----------------------------------------------------------- Comments from the original author Genevieve Patau. She has since retired and no longer maintains the package. Donated to the GMT project by G. Patau upon her retirement from IGPG These notes are just preserved for posterity: Dear colleagues, psvelomeca is separated into psvelo and psmeca psmeca plots focal mechanisms. Modifications : - depth is in third column (in order to use the same file with pscoupe) - scale is size of beach ball for magnitude 5 that is scalar moment = 4e+23 dynes.cm instead of 1e24 dynes.cm The formula used is the one of Thorne Lay, Terry C. Wallace, Modern Global Seismology, Academic Press p.384. Additions : - plot P and T axis - plot moment tensor - plot events between depth min and max - plot events with color of compressive quadrants function of depth psvelo plots velocity ellipses, strain crosses and strain wedges. It is a part of the GMT supplemental archive, so it can be installed automatically via install_gmt. Psmeca plots seismic moment tensor and/or double couples on a map. Pscoupe plots seismic moment tensor and/or double couples on a cross-section. Pspolar plots polarities on the lower half-sphere. Psvelo plots velocity ellipses, strain crosses, or strain wedges on a map. For examples, see the directory test/meca. Genevieve Patau Institut de Physique du Globe de Paris Departement de Sismologie Case 89; 4 Place Jussieu 75252 Paris Cedex 05 Tel: (33) (0)1 44 27 47 79 Telex:202810 Volsism Fax: (33) (0)1 44 27 38 94 E-mail: [email protected] Comment from Kurt Feigl regarding distribution rights for meca: April 5, 2013, Thanks for your message. Yes, I agree that psvelo and psmeca and their derivatives should be licensed under the Lesser GNU public license. When Genevieve Patau and I wrote the original code in 1992, we were both government employees of France. I am not aware of any restrictions on the intellectual property. Sincerely, Kurt Feigl