require "numru/ggraph"
include NumRu
gp = GPhys::IO.open("T.jan.nc","T")
DCL.gropn(1)
DCL.sldiv('y',2,1)
DCL.sgpset('lcntl',false)
DCL.uzfact(0.7)
GGraph.set_fig('viewport'=>[0.15,0.75,0.2,0.8])
GGraph.contour( gp.cut('level'=>100) )
GGraph.next_fig('itr'=>2)
GGraph.contour( gp.mean(0).copy )
DCL.grcls