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# A.1 dbase: gridded data extractor

This package contains grdraster which you can use to extract data from global gridded data sets such as those available from NGDC. We have used it to prepare some of the grids in the examples (Chapter 6). You can also customize it to read your own data sets. The package is maintained by the GMT developers.

Next: A.2 gshhs: GSHHS data Up: A. GMT supplemental packages Previous: A. GMT supplemental packages Contents Index