reinit
*open station descriptor file
open st.&0.ctl
*open grided template descriptor file
open grd.&0.ctl
set lon 20.5 139.5
set lat 35.5 70.5
set gxout fwrite
set t 1 37
d oacres(&0.2,&0)
*&0 is w20,w50,w100,s20,s50 or s100