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$ WAVEWATCH III Grid integration input file                            $
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$ Time, time increment and number of outputs
$
  19680606 060000 10800. 1
$
$ Total number of grids (NGR). The code assumes that the first NGR-1  
$ grids are the input grids and the last grid is the target grid in 
$ which the output fields are to be interpolated. It also assumes
$ that all the grids have the same output fields switched on 
$
$ NGR
$
 4
$
$ Grid Ids
$
 'grd1'
 'grd2'
 'grd3'
 'grd4'
$
$ In this example grd1, grd2 and grd3 are the input grids. For each
$ of these grids a mod_def.grdN and an out_grd.grdN are available.
$ The target grid is grd4, and a mod_def.grd4 is also made available.
$ Upon execution of the code an out_grd.grd4 is generated via
$ interpolation of output fields from the various out_grd.grdN
$ (N varying from 1 to 3) files.
$
$ Choice of no extrapolation [0] or to extrapolate [1] with wet points [2]
 0
$
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$ End of input file                                                    $
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