[ncl-talk] Graphical error

Md. Jalal Uddin dmjalal90 at gmail.com
Sun Apr 8 05:48:54 MDT 2018


Dear Sir/ Madam,

I am a new user in NCL. I am getting following error in NCL. I tried to fix
it by following NCL guidelines, but don't know why it is not fixing. I used
TRMM3B42 3 hourly data. Could you help me, please?

(0)    check_for_y_lat_coord: Warning: Data either does
    not contain a valid latitude coordinate array or doesn't
    contain one at all
(0)    check_for_lon_coord: Warning: Data either does
    not contain a valid longitude coordinate array or doesn't
    contain one at all

(0)   is_valid_lat_ycoord: Warning: The units attribute of
    the Y coordinate array is not set to one of the allowable
    units values (i.e. 'degrees_north'). Your latitude labels
    may not be correct.

(0)   is_valid_lat_xcoord: Warning: The units attribute of
    the X coordinate array is not set to one of the allowable
    units values (i.e. 'degrees_east'). Your longitude labels
    may not be correct.

;;;;;My script


;***********************************************
;
; These files are loaded by default in NCL V6.2.0 and newer
; load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
; load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"

begin
;************************************************
; Read the file
;************************************************
  f1 = addfile("3B42RT.2013051100.7.nc4","r")
  prc1  = f1->precipitation       ;; prc1 here is two dimensional

  f2 = addfile("3B42RT.2013051103.7.nc4","r")
  prc2  = f2->precipitation

  f3 = addfile("3B42RT.2013051106.7.nc4","r")
  prc3  = f3->precipitation

  f4 = addfile("3B42RT.2013051109.7.nc4","r")
  prc4  = f4->precipitation

  f5 = addfile("3B42RT.2013051112.7.nc4","r")
  prc5  = f5->precipitation

  f6 = addfile("3B42RT.2013051115.7.nc4","r")
  prc6  = f6->precipitation

  f7 = addfile("3B42RT.2013051118.7.nc4","r")
  prc7  = f7->precipitation

  f8 = addfile("3B42RT.2013051121.7.nc4","r")
  prc8  = f8->precipitation

  f9 = addfile("3B42RT.2013051200.7.nc4","r")
  prc9  = f9->precipitation

  f10 = addfile("3B42RT.2013051203.7.nc4","r")
  prc10  = f10->precipitation

  f11 = addfile("3B42RT.2013051206.7.nc4","r")
  prc11  = f11->precipitation

f12 = addfile("3B42RT.2013051209.7.nc4","r")
  prc12  = f12->precipitation

f13 = addfile("3B42RT.2013051212.7.nc4","r")
  prc13  = f13->precipitation

f14 = addfile("3B42RT.2013051215.7.nc4","r")
  prc14  = f14->precipitation

f15 = addfile("3B42RT.2013051218.7.nc4","r")
  prc15  = f15->precipitation

f16 = addfile("3B42RT.2013051221.7.nc4","r")
  prc16  = f16->precipitation

f17 = addfile("3B42RT.2013051300.7.nc4","r")
  prc17  = f17->precipitation

f18 = addfile("3B42RT.2013051303.7.nc4","r")
  prc18  = f18->precipitation

f19 = addfile("3B42RT.2013051306.7.nc4","r")
  prc19  = f19->precipitation

f20 = addfile("3B42RT.2013051309.7.nc4","r")
  prc20  = f20->precipitation

f21 = addfile("3B42RT.2013051312.7.nc4","r")
  prc21  = f21->precipitation

f22 = addfile("3B42RT.2013051315.7.nc4","r")
  prc22  = f22->precipitation

 f23 = addfile("3B42RT.2013051318.7.nc4","r")
  prc23  = f23->precipitation

f24 = addfile("3B42RT.2013051321.7.nc4","r")
  prc24  = f24->precipitation

f25 = addfile("3B42RT.2013051400.7.nc4","r")
  prc25  = f25->precipitation

f26 = addfile("3B42RT.2013051403.7.nc4","r")
  prc26  = f26->precipitation

f27 = addfile("3B42RT.2013051406.7.nc4","r")
  prc27  = f27->precipitation

f28 = addfile("3B42RT.2013051409.7.nc4","r")
  prc28  = f28->precipitation

f29 = addfile("3B42RT.2013051412.7.nc4","r")
  prc29  = f29->precipitation

f30 = addfile("3B42RT.2013051415.7.nc4","r")
  prc30  = f30->precipitation

f31 = addfile("3B42RT.2013051418.7.nc4","r")
  prc31  = f31->precipitation

f32 = addfile("3B42RT.2013051421.7.nc4","r")
  prc32  = f32->precipitation

f33 = addfile("3B42RT.2013051500.7.nc4","r")
  prc33  = f33->precipitation

f34 = addfile("3B42RT.2013051503.7.nc4","r")
  prc34  = f34->precipitation

f35 = addfile("3B42RT.2013051506.7.nc4","r")
  prc35  = f35->precipitation

f36 = addfile("3B42RT.2013051509.7.nc4","r")
  prc36  = f36->precipitation

f37 = addfile("3B42RT.2013051512.7.nc4","r")
  prc37  = f37->precipitation

f38 = addfile("3B42RT.2013051515.7.nc4","r")
  prc38  = f38->precipitation

f39 = addfile("3B42RT.2013051518.7.nc4","r")
  prc39  = f39->precipitation

f40 = addfile("3B42RT.2013051521.7.nc4","r")
  prc40  = f40->precipitation

f41 = addfile("3B42RT.2013051600.7.nc4","r")
  prc41  = f41->precipitation

f42 = addfile("3B42RT.2013051603.7.nc4","r")
  prc42  = f42->precipitation

f43 = addfile("3B42RT.2013051606.7.nc4","r")
  prc43  = f43->precipitation

f44 = addfile("3B42RT.2013051609.7.nc4","r")
  prc44  = f44->precipitation

f45 = addfile("3B42RT.2013051612.7.nc4","r")
  prc45  = f45->precipitation

f46 = addfile("3B42RT.2013051615.7.nc4","r")
  prc46  = f46->precipitation

f47 = addfile("3B42RT.2013051618.7.nc4","r")
  prc47  = f47->precipitation

f48 = addfile("3B42RT.2013051621.7.nc4","r")
  prc48  = f48->precipitation

f49 = addfile("3B42RT.2013051700.7.nc4","r")
  prc49  = f49->precipitation

  prc_all = (prc1 + prc2 + prc3 + prc4 + prc5 + prc6 + prc7 + prc8 +
prc9 + prc10 + prc11 + prc12 + prc13 + prc14 + prc15 + prc16 + prc17 +
prc18 + prc19 + prc20 + prc21 + prc22 + prc23 + prc24 + prc25 + prc26
+ prc27 + prc28 + prc29 + prc30 + prc31 + prc32 + prc33 + prc34 +
prc35 + prc36 + prc37 + prc38 + prc39 + prc40 + prc41 + prc42 + prc43
+ prc44 + prc45 + prc46 + prc47 + prc48 + prc49)

   ;prc_last        := prc_all->precipitation
   ;prc!0      = "lat"                   ; 1st ... name the dimensions
   ;prc!1      = "lon"
   ;prc&lat    =  lat                    ; create coordinate variable
   ;prc&lon    =  lon


;lat_p       = (/-35,-30,-25,-20,-15,-10,-5,0,5,10,15,20,25,30/)
;lon_p       = (/0,10,20,30,40,50,60,70,80,90,100,110,120,130,135/)
    ;X!0      = "lat"
    ;Y!1      = "lon"
;X&lat at units = "degrees_north"
;Y&lon at units = "degrees_east"
;grid        = new((/14,15),float)

;grid&lat    = lat_p
;grid&lon    = lon_p

printVarSummary(prc_all)

;************************************************
; create colors
;*************************************************
  wks = gsn_open_wks("png","Mahasen")             ; open a workstation
and send data to eps

  colors = (/ (/255,255,255/), (/244,255,244/), \
              (/217,255,217/), (/163,255,163/), (/106,255,106/), \
              (/43,255,106/), (/0,224,0/), (/0,134,0/),(/255,255,0/),\
              (/255,127,0/) /) / 255.   ; be sure to make this a float!

;************************************************
; create panel plots
;*************************************************
  res                      = True               ; plot options desired

  res at cnFillOn             = True               ; turn on color fill
  res at cnLinesOn            = False              ; turn off contour lines
  res at cnFillPalette        = colors

  res at cnLevelSelectionMode = "ExplicitLevels"   ; set explicit contour levels
  res at cnLevels             = (/5,10,15,20,25,30,35,40,45,50,55/)
  ;res at cnLevels             = (/0.1,0.2,0.4,0.8,1.6,3.2,6.4,12.8,20,25,30/)


  res at mpFillOn             = True              ; turn on gray continents
  res at pmTickMarkDisplayMode = "Always"

  res at mpLimitMode = "LatLon"        ; select subregion
  res at mpMinLatF            = -35.
  res at mpMaxLatF            =   30.
  res at mpMinLonF            =  0.
  res at mpMaxLonF            =  135.
  ;res at mpProjection = "Mercator"
  res at lbOrientation        = "horizontal"
  res at trGridType           = "TriangularMesh"
  ;res at trGridType           = "curvilinear"

  res at tmYROn      = False     ; turn off right and top tickmarks
  res at tmXTOn      = False

 ; add polygon to plot
   y = (/10.3, 10.8, 11.4, 11.9, 12.3, 13.1, 13.7, 14.2, 14.7, 15.6,
16.5, 17.5, 18.5, 19.7, 20.7, 22.4, 24.3/)
   x = (/87.0, 86.7, 86.5, 86.2, 85.6, 85.4, 85.4, 85.8, 86.2, 86.7,
87.2, 87.6, 88.4, 89.0, 89.9, 91.1, 92.6/)
   resp = True ; mods yes
   resp at gsLineThicknessF = 3.0                ; line thickness
   resp at gsLineColor      = "black"

 ;Add markers to the trajectories.
   amres                = True         ; marker resources for best track
   amres at gsMarkerIndex  = 14           ; marker style (filled circle)
   amres at gsMarkerSizeF  = 8.0          ; marker size
   amres at gsMarkerColor  = "black"      ; maker color

 plot = gsn_csm_contour_map(wks, prc_all,res)  ; create plot
 d = gsn_add_polyline(wks,plot,x,y,resp)
 d1 = gsn_add_polymarker(wks,plot,x,y,amres)
  draw(plot)
  frame(wks)
end

Best Wishes
Jalal

-- 
*Md. Jalal Uddin*
MSc in Applied Meteorology (English Language)
Nanjing University of Information, Science and Technology, China
Jasmine Jiangsu Government Scholar
Cell: +8613260859092
Office: Beichen Building, School of Geography and Remote Sensing, Room No.
406

*AND *
B.Sc. in Disaster Management (Hons.)
Patuakhali Science and Technology University, Bangladesh.
Cell: +8801792052662, +8801838613203
Email: dmjalal90 at gmail.com
Web: www.dmjalal90.weebly.com
Facebook: jalal.hossen.39
LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
Twitter: dmjalal90
Skype: dmjalal90
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