C:\hysplit4\working>c:\hysplit4\exec\concplot
 USAGE: concplot -[options (default)]
   -a[Arcview GIS: 0-no dump, 1-dump log10, 2-dump value]
   -b[Bottom display level: (0) m]
   -c[Contours: (0)-dyn/exp 1-fix/exp 2-dyn/lin 3-fix/lin 4-set]
   -d[Display: (1)-by level, 2-levels averaged]
   -e[Exposure units flag: (0)-concentrations, 1-exposure]
   -f[Frames: (0)-all frames one file, 1-one frame per file]
   -g[Circle overlay: ( )-auto, #circ(4), #circ:dist_km]
   -h[Hold map at center lat-lon: (source point), lat:lon]
   -i[Input file name: (cdump)]
   -j[Graphics map background file name: (arlmap)]
   -k[Kolor: 0-B&W, (1)-Color, 2-No Lines]
   -l[Label options: ascii code, (73)-open star]
   -m[Map projection: (0)-auto, 1-polar, 2-lambert, 3-mercator]
   -n[Number of time periods: (0)-all, numb, min:max, -incr]
   -o[Output file name: (concplot.ps)]
   -p[Process file name suffix: (ps) or process ID]
   -q[Quick data plot: ( )-none, filename]
   -r[Removal: 0-none, (1)-each time, 2-sum, 3-total]
   -s[Species: 0-sum, (1)-select, #-multiple]
   -t[Top display level: (99999) m]
   -u[Units label for mass: (mass), see "labels.cfg" file]
   -v[Values for fixed contours: val1+val2+val3+val4]
   -w[Weight for contour smoothing: (0.25), none=0.0]
   -x[Concentration multiplier: (1.0)]
   -y[Deposition multiplier:    (1.0)]
   -z[Zoom factor: 0-least zoom, (50), 100-most zoom]

 NOTE: leave no space between option and value