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plot.gnssr.track.spir.and.altim.gs
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plot.gnssr.track.spir.and.altim.gs
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* This script plots collocated GNSS-R and TOPEX/Poseidonr-referenced altimetry.
* The assumed conversion between the GNSS-R reference ellipsoid (WGS84) and the
* satellite altimeter at 60N is 0.71m. Execution uses a command like
*
* grads -blc "plot.gnssr.track.spir.and.altim JA2_GPN_2PdP273_092_20151203_155445_20151203_165058.nc.txt WAV_G1_track00_L1_ZZ.txt windgps"
* grads -blc "plot.gnssr.track.spir.and.altim JA2_GPN_2PdP273_092_20151203_155445_20151203_165058.nc.txt WAV_G1_track00_L1_ZZ.txt wavegps"
* grads -blc "plot.gnssr.track.spir.and.altim JA2_GPN_2PdP273_092_20151203_155445_20151203_165058.nc.txt WAV_G1_track00_L1_ZZ.txt hghtgps"
* grads -blc "plot.gnssr.track.spir.and.altim JA2_GPN_2PdP273_092_20151203_155445_20151203_165058.nc.txt WAV_G1_track00_L1_ZZ.txt windalt"
* grads -blc "plot.gnssr.track.spir.and.altim JA2_GPN_2PdP273_092_20151203_155445_20151203_165058.nc.txt WAV_G1_track00_L1_ZZ.txt wavealt"
* grads -blc "plot.gnssr.track.spir.and.altim JA2_GPN_2PdP273_092_20151203_155445_20151203_165058.nc.txt WAV_G1_track00_L1_ZZ.txt hghtalt"
* grads -blc "plot.gnssr.track.spir.and.altim JA2_GPN_2PdP273_092_20151203_155445_20151203_165058.nc.txt WAV_G1_track00_L1_ZZ.txt hghtall"
*
* - RD September 2016.
function plot(args)
see = 1 ;* view land (1=yes, 0=no)
alt = subwrd(args,1)
gps = subwrd(args,2)
chk = subwrd(args,3)
gpsfil = gps ; gpsnam = substr(gpsfil,5,3)
if (gpsnam = "G1_" | gpsnam = "G3_") ; gpsnam = substr(gpsfil,5,2) ; endif
alok = 0 ; filestat = read(alt) ; if (sublin(filestat,1) != 0) ; say alt" is not available" ; else ; alok = 1 ; filestat = close(alt) ; endif
gpok = 0 ; filestat = read(gps) ; if (sublin(filestat,1) != 0) ; say gps" is not available" ; else ; gpok = 1 ; filestat = close(gps) ; endif
* if (sfok = 0 & drok = 0) ; "quit" ; endif
"set rgb 41 255 255 255"
"set rgb 42 200 255 200"
"set rgb 43 160 205 160"
"set rgb 44 120 255 120"
"set rgb 45 80 155 80"
"set rgb 46 40 255 40"
"set rgb 47 200 200 255"
"set rgb 48 160 160 205"
"set rgb 49 120 120 255"
"set rgb 50 80 80 155"
"set rgb 51 40 40 255"
"set rgb 52 255 200 200"
"set rgb 53 205 160 160"
"set rgb 54 255 120 120"
"set rgb 55 155 80 80"
"set rgb 56 255 40 40"
"set rgb 88 0 0 208" ;* default best track colour
"set rgb 99 210 210 210" ;* default land colour
"sdfopen data_ecmwf/interim_2015-12-01_2015-12-05_oper.nc"
"sdfopen data_ecmwf/interim_2015-12-01_2015-12-05_wave.nc"
"sdfopen /home/ricani/data/mdt/MSS/MSS_CNES_CLS_11_2M.nc"
"set lat 59.70 60.45"
"set lon 25.05 26.85"
if (chk = "hghtall")
"set lat 59.80 60.30"
"set lon 25.40 26.60"
endif
"set mpdset hires"
"set mpt * 1 1 10"
"set grid off"
"set clopts 1 4 .08"
"set xlopts 1 4 .095"
"set ylopts 1 4 .095"
"set digsiz 0.05"
defa = "D2R = 3.141592654 / 180.0" ; "define "defa
if (chk = "windgps" | chk = "windalt")
va = 3.0 ; vb = 4.0 ; vc = 5.0 ; vd = 6.0 ; ve = 7.0 ; vf = 8.0 ; vg = 9.0 ; vh = 10.0 ; vi = 11.0 ; vj = 12.0 ; vk = 13.0
endif
if (chk = "wavegps" | chk = "wavealt")
va = 0.2 ; vb = 0.4 ; vc = 0.6 ; vd = 0.8 ; ve = 1.0 ; vf = 1.2 ; vg = 1.4 ; vh = 1.6 ; vi = 1.8 ; vj = 2.0 ; vk = 2.2
endif
if (chk = "hghtgps" | chk = "hghtalt" | chk = "hghtall")
va = 13.0 ; vb = 13.5 ; vc = 14.0 ; vd = 14.5 ; ve = 15.0 ; vf = 15.5 ; vg = 16.0 ; vh = 16.5 ; vi = 17.0 ; vj = 17.5 ; vk = 18.0
endif
"set xlint 0.2" ; "set ylint 0.1" ;* store shading information
"set grads off" ; "set clab off" ; "set clevs 0" ; "d msl/100"
"set gxout grfill"
"set ccols 9 14 4 11 5 13 3 10 7 12 8 2"
"set clevs "va" "vb" "vc" "vd" "ve" "vf" "vg" "vh" "vi" "vj" "vk
"set xlint 0.2" ; "set ylint 0.1"
"set grads off" ; "set clab off" ; "d msl/100"
"q shades" ; _shades = result
"clear"
"set gxout contour"
"set xlint 0.2" ; "set ylint 0.1" ; "set cthick 12"
"set ccols 9 14 4 11 5 13 3 10 7 12 8 2"
"set clevs "va" "vb" "vc" "vd" "ve" "vf" "vg" "vh" "vi" "vj" "vk
"set grads off" ; "set clab forced" ; "set clopts -1 7 0.20" ; "d sea_level.3(t=1) - 0.545"
*"set grads off" ; "set clab off" ; "set clevs 0" ; "d msl/100"
iter = 1 ; tmp = ""
if (chk = "hghtall") ; iter = 2 ; tmp = "hghtall" ; endif
while (iter > 0)
if (tmp = "hghtall" & iter = 1) ; chk = "hghtgps" ; endif
if (tmp = "hghtall" & iter = 2) ; chk = "hghtalt" ; endif
if (chk = "windgps" | chk = "wavegps" | chk = "hghtgps") ; drop = gps ; endif
if (chk = "windalt" | chk = "wavealt" | chk = "hghtalt") ; drop = alt ; endif
"q gxinfo"
line3 = sublin(result,3)
line4 = sublin(result,4)
x1 = subwrd(line3,4)
x2 = subwrd(line3,6)
y1 = subwrd(line4,4)
y2 = subwrd(line4,6)
"set clip "x1" "x2" "y1" "y2
say "reading "drop
filestat = read(drop)
while (sublin(filestat,1) = 0)
line = sublin(filestat,2)
drop_ilat = subwrd(line,1)
drop_ilon = subwrd(line,2)
* gpspars = ["latitude_spec", "longitude_spec", "height_rcv", "atmospheric_delay", "SSH", "sigma_SSH", "mss_snr_max", "mss_snr_der", "elevation_txr"]
if (chk = "windgps")
drop_wspd = subwrd(line,7)
endif
if (chk = "wavegps")
drop_wspd = subwrd(line,7)
endif
if (chk = "hghtgps") ;* remove atmospheric correction in GNSS-R SSH
drop_ideg = subwrd(line,9)
* drop_wspd = subwrd(line,5) - (subwrd(line,4) / 2.0 / math_sin(drop_ideg * 3.141592654 / 180.0))
drop_wspd = subwrd(line,5)
drop_sigm = subwrd(line,6)
endif
* altpars = ["lat", "lon", "rad_distance_to_land", "swh_ku", "swh_c", "wind_speed_alt", "range_ku", "range_c", "alt"]
if (chk = "windalt")
drop_wspd = subwrd(line,6) ;* wind_speed_alt
endif
if (chk = "wavealt")
drop_wspd = subwrd(line,4) ;* swh_ku
endif
if (chk = "hghtalt")
drop_wspd = subwrd(line,9) - subwrd(line,7) - subwrd(line,11) - subwrd(line,12) - subwrd(line,13) - 0.545
endif
if (drop_wspd < va) ; drop_colr = 9 ; endif
if (drop_wspd >= va & drop_wspd < vb) ; drop_colr = 14 ; endif
if (drop_wspd >= vb & drop_wspd < vc) ; drop_colr = 4 ; endif
if (drop_wspd >= vc & drop_wspd < vd) ; drop_colr = 11 ; endif
if (drop_wspd >= vd & drop_wspd < ve) ; drop_colr = 5 ; endif
if (drop_wspd >= ve & drop_wspd < vf) ; drop_colr = 13 ; endif
if (drop_wspd >= vf & drop_wspd < vg) ; drop_colr = 3 ; endif
if (drop_wspd >= vg & drop_wspd < vh) ; drop_colr = 10 ; endif
if (drop_wspd >= vh & drop_wspd < vi) ; drop_colr = 7 ; endif
if (drop_wspd >= vi & drop_wspd < vj) ; drop_colr = 12 ; endif
if (drop_wspd >= vj & drop_wspd < vk) ; drop_colr = 8 ; endif
if (drop_wspd >= vk) ; drop_colr = 2 ; endif
"q w2xy "drop_ilon" "drop_ilat ; rec = sublin(result,1) ; obsx = subwrd(rec,3) ; obsy = subwrd(rec,6)
dotsize = 0.09 ; if (chk != "hghtgps" | drop_sigm > 0.007) ; dotsize = 0.03 ; endif
if (chk = "windalt" | chk = "wavealt" | chk = "hghtalt") ; dotsize = 0.19 ; endif
"set line "drop_colr" 1 5" ; "draw mark 3 "obsx" "obsy" "dotsize ; "set line 1 1 5"
filestat = read(drop)
endwhile
filestat = close(drop)
iter = iter - 1
endwhile
if (tmp = "hghtall") ; chk = "hghtall" ; endif
"set grads off" ; "set clab off" ; "set clevs 0" ; "d msl/100" ;* plot ECMWF vector field
if (chk = "windgps" | chk = "windalt")
"set ccolor 1" ; "set arrscl 0.6 10" ; "d u10(t=11);v10(t=11)"
endif
if (chk = "wavegps" | chk = "wavealt")
"set ccolor 1" ; "d -swh.2(t=11)*sin(mwd.2(t=11)*3.141592654/180.0);-swh.2(t=11)*cos(mwd.2(t=11)*3.141592654/180.0)"
* "set gxout shaded" ; "d swh.2(t=11)"
"run basemap L 0 1"
endif
if (chk = "hghtgps" | chk = "hghtalt")
"set ccolor 1"
endif
"set strsiz 0.18"
"set string 1 bc 5"
if (chk = "windgps") ; "draw string 5.50 7.00 ECMWF Interim 10-m wind (m/s) 12 UTC 3 December 2015" ; endif
if (chk = "wavegps") ; "draw string 5.50 7.00 ECMWF Interim SWH (m) 12 UTC 3 December 2015" ; endif
if (chk = "hghtgps") ; "draw string 5.50 7.00 ECMWF Interim Altimetry (m) 12 UTC 3 December 2015" ; endif
if (chk = "windalt") ; "draw string 5.50 7.00 JASON-2 10-m wind speed (m/s) 16 UTC 3 December 2015" ; endif
if (chk = "wavealt") ; "draw string 5.50 7.00 JASON-2 SWH (m) 16 UTC 3 December 2015" ; endif
if (chk = "hghtalt") ; "draw string 5.50 7.00 JASON-2 Altimetry (m) 16 UTC 3 December 2015" ; endif
if (chk = "hghtall") ; "draw string 5.50 7.00 JASON-2 and SPIR-"gpsnam" Altimetry (m)" ; endif
"set grads off" ; inner_cbarn("0.80 0 4.20 1.20")
*"set string 1 l 6"
*"draw string 2.2 7.6 Best Track ("btxt_ty")"
*"set line 1 1 5" ; "draw mark 3 1.75 7.60 0.17"
*"set line 0 1 5" ; "draw mark 3 1.75 7.60 0.10"
*spd = math_format("%.0f",best_vmax)
*"set string 1 c 6"
*"set strsiz 0.10" ; xpos = 5.5 ; ypos = 8.4 ; ydel = 0.15
if (chk = "windgps") ; plotnam = "plot.ECMWF.wind."gps ; endif
if (chk = "wavegps") ; plotnam = "plot.ECMWF.wave."gps ; endif
if (chk = "hghtgps") ; plotnam = "plot.ECMWF.hght."gps ; endif
if (chk = "windalt") ; plotnam = "plot.ECMWF.wind."alt ; endif
if (chk = "wavealt") ; plotnam = "plot.ECMWF.wave."alt ; endif
if (chk = "hghtalt") ; plotnam = "plot.ECMWF.hght."alt ; endif
if (chk = "hghtall") ; plotnam = "plot.ECMWF.hght."alt"."gps ; endif
#"run gui_print_colour "plotnam
say "printim "plotnam".png png white x1100 y850"
"printim "plotnam".png png white x1100 y850"
"quit"
* drop_delh = drop_delh + subwrd(line,6) ; drop_numb = drop_numb + 1
function inner_cbarn(args)
sf=subwrd(args,1)
vert=subwrd(args,2)
xmid=subwrd(args,3)
ymid=subwrd(args,4)
if(sf='');sf=1.0;endif
*
* Check shading information
*
* 'query shades'
shdinfo = _shades
*say shdinfo
if (subwrd(shdinfo,1)='None')
say 'Cannot plot color bar: No shading information'
return
endif
*
* Get plot size info
*
*"set vpage off"
'query gxinfo'
* result = _gxinfo
*say result
rec2 = sublin(result,2)
rec3 = sublin(result,3)
rec4 = sublin(result,4)
xsiz = subwrd(rec2,4)
ysiz = subwrd(rec2,6)
ylo = subwrd(rec4,4)
xhi = subwrd(rec3,6)
xd = xsiz - xhi
ylolim=0.6*sf
xdlim1=1.0*sf
xdlim2=1.5*sf
barsf=0.8*sf
yoffset=0.2*sf
stroff=0.1*sf
strxsiz=0.17*sf
strysiz=0.18*sf
*
* Decide if horizontal or vertical color bar
* and set up constants.
*
if (ylo<ylolim & xd<xdlim1)
say "Not enough room in plot for a colorbar"
return
endif
cnum = subwrd(shdinfo,5)
*
* logic for setting the bar orientation with user overides
*
if (ylo<ylolim | xd>xdlim1)
vchk = 1
if(vert = 0) ; vchk = 0 ; endif
else
vchk = 0
if(vert = 1) ; vchk = 1 ; endif
endif
*
* vertical bar
*
if (vchk = 1 )
if(xmid = '') ; xmid = xhi+xd/2 ; endif
xwid = 0.2*sf
ywid = 0.5*sf
xl = xmid-xwid/2
xr = xl + xwid
if (ywid*cnum > ysiz*barsf)
ywid = ysiz*barsf/cnum
endif
if(ymid = '') ; ymid = ysiz/2 ; endif
yb = ymid - ywid*cnum/2
#RD 'set string 1 l 3'
'set string 1 r 3'
vert = 1
else
*
* horizontal bar
*
ywid = 0.4
xwid = 0.8
if(ymid = '') ; ymid = ylo/2-ywid/2 ; endif
yt = ymid + yoffset
yb = ymid
if(xmid = '') ; xmid = xsiz/2 ; endif
if (xwid*cnum > xsiz*barsf)
xwid = xsiz*barsf/cnum
endif
xl = xmid - xwid*cnum/2
'set string 1 tc 3'
vert = 0
endif
*
* Plot colorbar
*
* 'set strsiz 'strxsiz' 'strysiz
num = 0
while (num<cnum)
rec = sublin(shdinfo,num+2)
*RD rec = sublin(shdinfo,num+20)
col = subwrd(rec,1)
hi = subwrd(rec,3)
if (vert)
yt = yb + ywid
else
xr = xl + xwid
endif
* Draw the left/bottom triangle
if (num = 0)
if(vert = 1)
xm = (xl+xr)*0.5
'set line 'col
'draw polyf 'xl' 'yt' 'xm' 'yb' 'xr' 'yt' 'xl' 'yt
'set line 1 1 3'
'draw line 'xl' 'yt' 'xm' 'yb
'draw line 'xm' 'yb' 'xr' 'yt
'draw line 'xr' 'yt' 'xl' 'yt
else
ym = (yb+yt)*0.5
'set line 'col
'draw polyf 'xl' 'ym' 'xr' 'yb' 'xr' 'yt' 'xl' 'ym
'set line 1 1 3'
'draw line 'xl' 'ym' 'xr' 'yb
'draw line 'xr' 'yb' 'xr' 'yt
'draw line 'xr' 'yt' 'xl' 'ym
endif
endif
* Draw the middle boxes
if (num!=0 & num!= cnum-1)
'set line 'col
'draw recf 'xl' 'yb' 'xr' 'yt
'set line 1 1 3'
'draw rec 'xl' 'yb' 'xr' 'yt
endif
* Draw the right/top triangle
if (num = cnum-1)
if (vert = 1)
'set line 'col
'draw polyf 'xl' 'yb' 'xm' 'yt' 'xr' 'yb' 'xl' 'yb
'set line 1 1 3'
'draw line 'xl' 'yb' 'xm' 'yt
'draw line 'xm' 'yt' 'xr' 'yb
'draw line 'xr' 'yb' 'xl' 'yb
else
'set line 'col
'draw polyf 'xr' 'ym' 'xl' 'yb' 'xl' 'yt' 'xr' 'ym
'set line 1 1 3'
'draw line 'xr' 'ym' 'xl' 'yb
'draw line 'xl' 'yb' 'xl' 'yt
'draw line 'xl' 'yt' 'xr' 'ym
endif
endif
* Put numbers under each segment of the color key
if (num < cnum-1)
if (vert)
#RD xp=xr+stroff
xp=xl-stroff
'draw string 'xp' 'yt' 'hi
else
yp=yb-stroff
'draw string 'xr' 'yp' 'hi
endif
endif
* Reset variables for next loop execution
if (vert)
yb = yt
else
xl = xr
endif
num = num + 1
endwhile
return
*gridpoints = 50
*qtxt_ibai = math_format('%.0f',qtxt_ibat)
*qtxt_iboi = math_format('%.0f',qtxt_ibon)
*minbat = qtxt_ibai - gridpoints; maxbat = qtxt_ibai + gridpoints
*minbon = qtxt_iboi - gridpoints; maxbon = qtxt_iboi + gridpoints
*if (minbat < 1) ; minbat = 1 ; endif ; if (maxbat > qtxt_lats) ; maxbat = qtxt_lats ; endif
*if (minbon < 1) ; minbon = 1 ; endif ; if (maxbon > qtxt_lons) ; maxbon = qtxt_lons ; endif
*say minbat" "qtxt_ibai" "maxbat" "maxbat-minbat
*say minbon" "qtxt_iboi" "maxbon" "maxbon-minbon
*pixelsize = 4.5 * (maxbon - minbon) / (2 * gridpoints)
*xpic = 2 ; string = "0.50 10.50 "pixelsize" "xpic ; inner_decomp(string)
*a = 1 ; while (a <= xpic) ; lef.a = _retlef.a ; clr.a = _retmid.a ; rig.a = _retrig.a ; a = a + 1 ; endwhile
*pixelsize = 4.5 * (maxbat - minbat) / (2 * gridpoints)
*ypic = 1 ; string = "1.20 6.20 "pixelsize" "ypic ; inner_decomp(string)
*a = 1 ; while (a <= ypic) ; bot.a = _retlef.a ; cbt.a = _retmid.a ; top.a = _retrig.a ; a = a + 1 ; endwhile
*a = 1 ; while (a <= xpic)
* b = 1 ; while (b <= ypic)
* vpage.a.b = lef.a" "rig.a" "bot.b" "top.b
* b = b + 1 ; endwhile
*a = a + 1 ; endwhile