[ncl-talk] Graphical error
Rashed Mahmood
rashidcomsis at gmail.com
Mon Apr 23 14:40:52 MDT 2018
Hi Jalal,
The simplest answer would be to use one of the "dim_sum*" functions, e.g.
in your case you could try:
tot_prc = dim_sum_n_Wrap(prc,0)
This should give you sum for the time period you are selecting using
addfiles. Note that you might need to consider/think about the units, e.g.
total precipitation during the selected time period etc.
Cheers,
Rashed
Post doctoral fellow,
University of Victoria, Victoria BC.
On Sat, Apr 21, 2018 at 5:07 AM, Md. Jalal Uddin <dmjalal90 at gmail.com>
wrote:
> Dear Sir,
> My precipitation data is TRMM 3B42 that is 3 hourly. What should I add in the
> following script to sum precipitation?
>
>
> diri = "./"
> fili = systemfunc("cd "+diri+" ; ls 3B42RT.2013*.7.nc4")
> pthi = diri+fili
> print(fili)
>
> f = addfiles(pthi, "r")
> prc = f[:]->precipitation
>
> printVarSummary(prc)
>
> Best Wishes
> Jalal
>
> On Mon, Apr 9, 2018 at 3:50 AM, Dennis Shea <shea at ucar.edu> wrote:
>
>> How about addfiles
>>
>> https://www.ncl.ucar.edu/Document/Functions/Built-in/addfiles.shtml
>> -------------
>>
>> diri = "./"
>> fili = systemfunc("cd "+diri+" ; ls 3B42RT.2013*.7.nc4")
>> pthi = diri+fili
>> print(fili)
>>
>> f = addfiles(pthi, "r")
>> prc = f[:]->precipitation
>>
>> printVarSummary(prc)
>>
>> On Sun, Apr 8, 2018 at 6:51 AM, Guido Cioni <guidocioni at gmail.com> wrote:
>>
>>> You should provide clean code when writing to ncl-talk. There are a lot
>>> of commented lines in your script and it is hard to understand what you are
>>> actually doing. Everyone's time here is valuable ;)
>>>
>>> I suspect that your error is coming from this line
>>>
>>> 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)
>>>
>>>
>>> In this assignment every metadata (including coordinate variables) will
>>> be lost. Thus, NCL doesn't know how to interpret the coordinates of the
>>> variable that you are trying to plot. It's weird because it appears that in
>>> a commented part of your code you were exactly trying to fix this problem
>>>
>>> ;prc_last := prc_all->precipitation
>>> ;prc!0 = "lat" ; 1st ... name the dimensions
>>> ;prc!1 = "lon"
>>> ;prc&lat = lat ; create coordinate variable
>>> ;prc&lon = lon
>>>
>>>
>>> So...few options to fix this.
>>>
>>> [1] Re-assign coordinate variables as you did in the aforementioned part
>>> of the code which is now commented out. Note that you should use the names
>>> lat2d and lon2d if your coordinate variables are 2d instead of 1d.
>>>
>>> [2] Directly copy var coordinates (and possibly attributes) using one of
>>> the function https://www.ncl.ucar.edu/Document/Functions/Contrib
>>> uted/copy_VarCoords.shtml: https://www.ncl.ucar.edu/Document
>>> /Functions/Contributed/copy_VarMeta.shtml.
>>>
>>> Doing copy_VarCoords(prc1,prc_all) should do the trick.
>>>
>>> [3] Manually assign the coordinate variables to the plotting routine
>>> using the resources sfXarray and sfYArray. (this
>>> https://www.ncl.ucar.edu/Applications/contour1d.shtml can help).
>>>
>>>
>>> Cheers
>>>
>>> On 8. Apr 2018, at 13:48, Md. Jalal Uddin <dmjalal90 at gmail.com> wrote:
>>>
>>> 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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>>>
>>>
>>>
>>> Guido Cioni
>>> http://guidocioni.altervista.org
>>>
>>>
>>> _______________________________________________
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>>>
>>>
>>
>
>
> --
> *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
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk at ucar.edu
> List instructions, subscriber options, unsubscribe:
> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
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>
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