Several Important Commands in GMT

例子画多个子图

#!/bin/csh 

# program to plot a column file in 2D, color

# uses awk, gmt and other unix commands, so run on a machine that can access these

# set fonts

gmtset ANOT_FONT_SIZE 10 LABEL_FONT_SIZE 10 HEADER_FONT_SIZE 16

set outfil = aver_FSNS_assaw.ps

set COORD = -126.052/-67/25/52.905

set SIZE = 2.812/2.7905

set proj = JX2.4/1.8d

set SH = 2.5

set BSH = -5

set YY = -1.85

set BARa = 0/2400/400

set BARad = -1000/1000/400

set BARs = 0/1000/200

set BARsd = -500/700/200

set COMMON = /nfs/sphere/usr1/chunmei/from_norway/agu/common/cpt_file

set CPTa = $COMMON/str_weak_5_80-230.cpt

set CPTad = $COMMON/str-weak_5_-10-90.cpt

set CPTs = $COMMON/str-weak_5_0-350.cpt

set CPTsd = $COMMON/str_weak_6_-50-130.cpt

set TITLE = ("PCM B0622" "Observed" "PCM - VIC")

set season = ("MAM" "JJA" "SON" "DJF")

set PCMFL = (ann_pcm_SWnet.50-99

      spr_pcm_SWnet.50-99

       sum_pcm_SWnet.50-99

       fall_pcm_SWnet.50-99

      win_pcm_SWnet.50-99)

set OBSFL = (ann_vic_SWnet.50-99

      spr_vic_SWnet.50-99

      sum_vic_SWnet.50-99

      fall_vic_SWnet.50-99

      win_vic_SWnet.50-99)

set NCDF = (ann_pcm_SWnet.50-99:r.ncdf )

set II = 0

while ( $II < 5 ) # leave room for lt averages

@ II ++

set NCDFP$II = $PCMFL[$II]:r.ncdf

set NCDFO$II = $OBSFL[$II]:r.ncdf

awk '{print $1, $2, $3}' $PCMFL[$II] | xyz2grd -GNCDFP$II -F -I$SIZE -R$COORD

awk '{print $1, $2, $3}' $OBSFL[$II] | xyz2grd -GNCDFO$II -F -I$SIZE -R$COORD

grdmath NCDFP$II NCDFO$II SUB = diff$II.ncdf

end

grdimage NCDFP1 -R$COORD -Bwsne -$proj -Y9.0 -X0.5 -K -P -C$CPTa

pscoast -R$COORD -$proj -O -V -K -N1 -N2 -W1 -A10000 >> $outfil

grdimage NCDFO1 -R$COORD -Bwsne -$proj -X$SH -O -K -C$CPTa >> $outfil

pscoast -R$COORD -$proj -O -V -K -N1 -N2 -W1 -A10000 >> $outfil

grdimage diff1.ncdf -R$COORD -Bwsne -$proj -X$SH -O -K -C$CPTad >> $outfil

pscoast -R$COORD -$proj -O -V -K -N1 -N2 -W1 -A10000 >> $outfil

# add legend

psscale -C$CPTa -X-4.5 -Y-0.6 -E -D2.0/0.5/4.0/0.1h -B:"Average FSNS (W/m^2)": -O -K >> $outfil

psscale -C$CPTad -X3.7 -Y0.5 -E -D2.0/0/2.0/0.1h -B:"Difference (W/m^2)": -O -K >> $outfil

grdimage NCDFP2 -R$COORD -$proj -Bwsne -Y-2.5 -X-4.2 -O -K -C$CPTs >> $outfil

pscoast -R$COORD -$proj -O -K -N1 -N2 -W1 -A10000 >> $outfil

grdimage NCDFO2 -R$COORD -Bwsne -$proj -X$SH -O -K -C$CPTs >> $outfil

pscoast -R$COORD -$proj -O -K -N1 -N2 -W1 -A10000 >> $outfil

grdimage diff2.ncdf -R$COORD -Bwsne -$proj -X$SH -O -K -C$CPTsd >> $outfil

pscoast -R$COORD -$proj -O -K -N1 -N2 -W1 -A10000 >> $outfil

set II = 2

while ( $II < 5 ) # leave room for lt averages

@ II ++

grdimage NCDFP$II -R$COORD -$proj -Bwsne -Y$YY -X$BSH -O -K -C$CPTs >> $outfil

pscoast -R$COORD -$proj -O -K -N1 -N2 -W1 -A10000 >> $outfil

grdimage NCDFO$II -R$COORD -Bwsne -$proj -X$SH -O -K -C$CPTs >> $outfil

pscoast -R$COORD -$proj -O -K -N1 -N2 -W1 -A10000 >> $outfil

grdimage diff$II.ncdf -R$COORD -Bwsne -$proj -X$SH -O -K -C$CPTsd >> $outfil

pscoast -R$COORD -$proj -O -K -N1 -N2 -W1 -A10000 >> $outfil

end

# add legend

psscale -C$CPTs -X-4.5 -Y-0.6 -E -D2.0/0.5/4.0/0.1h -B:"Average FSNS (W/m^2)": -O -K >> $outfil

psscale -C$CPTsd -X3.7 -Y0.5 -E -D2.0/0/2.0/0.1h -B:"Difference (W/m^2)": -O >> $outfil

m *.ncdf

gs $outfil 

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