GMT is an open source collection of ~65 tools for manipulating geographic and Cartesian data sets (including filtering, trend fitting, gridding, projecting, etc.) and producing Encapsulated PostScript File (EPS) illustrations ranging from simple x-y plots via contour maps to artificially illuminated surfaces and 3-D perspective views; the GMT supplements add another ~70 more specialized tools. GMT supports over 30 map projections and transformations and comes with support data such as GSHHS coastlines, rivers, and political boundaries. This tutorial guides you through using GMT to make a simple location map. The locations come from a simple seismic experiment deployed near the PASSCAL Instrument center during the IRIS Internship Orientation. A final script is included with generous comments.
GMT software is required for this activity. Download GMT for free
This exercise was developed by Dr. Rob Porritt and used as part of the IRIS Internship Orientation Week.
Students will be able to:
- Create simple tcsh scripts
- Create presentation quality location maps
- Overlay various plots to create informative figures