# $ cat grid.txt
#
# gridID 1
#
gridtype  = lonlat
gridsize  = 259200
xsize     = 720
ysize     = 360
xname     = lon
xlongname = ""longitude""
xunits    = ""degrees_east""
yname     = lat
ylongname = ""latitude""
yunits    = ""degrees_north""
xfirst    = -179.75
xinc      = 0.5
yfirst    = 89.75
yinc      = -0.5