Join two grids along their common edge


gmt grdpaste [ -V[level] ] [ -fflags ] [ --PAR=value ]

Note: No space is allowed between the option flag and the associated arguments.


grdpaste will combine and into by pasting them together along their common edge. Files and must have the same dx, dy and have one edge in common. If in doubt, check with grdinfo and use grdcut and/or grdsample if necessary to prepare the edge joint. Note: For geographical grids, you may have to use -f to handle periodic longitudes unless the input grids are properly recognized as such via their meta-data.

Required Arguments

One of two files to be pasted together.

The other of two files to be pasted together.

The name for the combined output. (See Grid File Formats).

Optional Arguments


Select verbosity level [w]. (See full description) (See cookbook information).

-f[i|o]colinfo (more …)

Specify data types of input and/or output columns.

-^ or just -

Print a short message about the syntax of the command, then exit (NOTE: on Windows just use -).

-+ or just +

Print an extensive usage (help) message, including the explanation of any module-specific option (but not the GMT common options), then exit.

-? or no arguments

Print a complete usage (help) message, including the explanation of all options, then exit.


Temporarily override a GMT default setting; repeatable. See gmt.conf for parameters.


Note: Below are some examples of valid syntax for this module. The examples that use remote files (file names starting with @) can be cut and pasted into your terminal for testing. Other commands requiring input files are just dummy examples of the types of uses that are common but cannot be run verbatim as written.

Suppose is 150E - 180E and 0 - 30N, and is 150E - 180E, -30S - 0, then you can make which will be 150 - 180 and -30S - 30N by:

gmt grdpaste -V -fg