** - Setting region to load 'set lon -20 40' 'set lat 30 85' ** - Map projection 'set mpdset hires' 'set mproj nps' 'set mpvals -10 30 34 52' ** - Plotting relative humidity on 850 hPa 'set gxout shaded' 'set lev 850' 'd rhprs' 'set gxout contour' 'd rhprs' ** Labeling 'set string 3 l' 'draw string 1 1 NCEP GFS 1 deg analysis: relative humidity 850hPa'