sdfopen /grove3/iesuw/ccm1/CCM1-CNTROLPI-MONE0510.nc enable print oceanmask.prt set grid off set grads off set t 1 12 *maskout(expression, mask) *when the "mask" value is < 0, values in expression are set to the missing data value *since oro = 0 over oceans, oro-1 is negative over the oceans and oceans are masked out define tmask = maskout(ts,oro-1) set t 1 set cint 5 d tmask draw title TS with OCEAN MASKED OUT print disable print