;use this script to make a file that contains only oro
;in two dimensions

begin

;data file that contains oro in the dimensions you want
f = addfile("ha.F1.5.pcglobal.anni7031102.nc","r")

;create output file
out = addfile("oro.nc","c")

;create oro variable with appropriate dimensions
oro = new((/40,48/),float)

;put ORO from input file (first time only) into oro variable
oro = f->ORO(0,:,:)

;write oro to output file
;lat and lon are written automatically as coordindate variables
out->oro = oro 

end