## NAME

          grdcut - Extract a subregion out of a .grd file

## SYNOPSIS

          grdcut input_file.grd -Goutput_file.grd -Rwest/east/south/north[r] [ -V
          ]

## DESCRIPTION

          grdcut will produce a new output_file.grd file which is a subregion of
          input_file.grd.  The subregion is specified with
          -Rwest/east/south/north as in other programs; the specified range must
          not exceed the range of input_file.grd.  If in doubt, run grdinfo to
          check range.  Complementary to grdcut there is grdpaste, which will
          join together two grdfiles along a common edge.

          input_file.grd
               this is the input .grd format file.

          -Goutput_file.grd
               this is the output .grd format file.

          -R   west, east, south, and north specify the Region of interest.  To
               specify boundaries in degrees and minutes [and seconds], use the
               dd:mm[:ss] format.  Append r if lower left and upper right map
               coordinates are given instead of wesn.  This defines the
               subregion to be cut out.

## OPTIONS

          -V   Selects verbose mode, which will send progress reports to stderr
               [Default runs "silently"].

## EXAMPLES

          Suppose you have used surface to grid ship gravity in the region
          between 148E - 162E and 8N - 32N, and you do not trust the gridding
          near the edges, so you want to keep only the area between 150E - 160E
          and 10N - 30N, then:

          grdcut grav_148_162_8_32.grd -Ggrav_150_160_10_30.grd -R150/160/10/30
          -V

## SEE ALSO

          grdpaste, grdinfo, gmt