[ncl-talk] Why do I get "warning:gsnLeftString is not a valid resource in Plots00-P850_28_00Z_contour at this time"

Joseph Clark jpclark186000 at gmail.com
Tue Apr 5 13:32:18 MDT 2022


Hi Zilore,

Since I don't use the wrf plotting routines, I didn't realize the point
Adam made, and I could be missing something with my suggestion below. By my
impression is that if you are not setting the left and right strings, then
what is setting the strings? I imagine it is the variable attributes for
the arrays you are plotting. You might want to try simply creating a new
array without the variable attributes, like:

z_plane2 = z_plane * 1.0

printVarSummary(z_plane2)

(should show a variable without metadata or variable attributes).

Then add variable coordinates with copy_VarCoords(z_plane,z_plane2)

Joe

On Tue, Apr 5, 2022 at 3:04 PM Zilore Mumba via ncl-talk <
ncl-talk at mailman.ucar.edu> wrote:

> Thanks Adam once more.
> I had a look at . NoHeaderFooter =True or NoTitles=True have no effect. I
> had a look at $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl. There is
> no reference to LeftString, CenterString nor RightString in any of
> the subs. Now I understand why they are not recognized as resources.
>
>
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> On Tue, Apr 5, 2022 at 8:20 PM Zilore Mumba <zmumba at gmail.com> wrote:
>
>> I will try that. Thanks.
>>
>>
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>> On Tue, Apr 5, 2022 at 8:07 PM Adam Phillips <asphilli at ucar.edu> wrote:
>>
>>> Hi Zilore,
>>> I believe many if not all of the wrf plotting functions do not use the
>>> gsn_csm_* suite of plotting functions, and thus one cannot set subtitles
>>> with the gsn*String resources. (Looking at the code for wrf_contour
>>> (available in $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl), you can
>>> see that gsn_contour is being called.) According to the wrf_contour
>>> documentation
>>> <https://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_contour.shtml>,
>>> you can set NoHeaderFooter = True to turn off the subtitles, did you try
>>> that?  If that does not work, I would suggest you look at the
>>> WRFUserARW.ncl code (specifically look at the _SetMainTitle function) to
>>> see if you can turn off the labels manually.
>>>
>>> Hope that helps!
>>> Adam
>>>
>>> On Tue, Apr 5, 2022 at 3:55 AM Zilore Mumba via ncl-talk <
>>> ncl-talk at mailman.ucar.edu> wrote:
>>>
>>>> In my wrf plot script below, I am trying to suppress the left, center
>>>> and right string as well as the label at the bottom right. None of the wrf
>>>> script examples I have seen has these fields suppressed.  My gsn and cn
>>>> resources (marked in blue in the code below) do not seem to have any
>>>> effect, hence the warning message.
>>>> When I print these resources (in purple below) they are captured ok.
>>>> Is it that with this kind of plot one cannot suppress these fields?
>>>>
>>>>
>>>> ;   Example script to produce plots for a WRF real-data run,
>>>> ;   with the ARW coordinate dynamics option.
>>>> ;   Interpolating to specified pressure levels
>>>>
>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
>>>>
>>>> begin
>>>> ;
>>>> ; The WRF ARW input file.
>>>>      DATADir = "/home/zmumba/DA/OUTPUT/2022022800/noda/"
>>>>      FILES = systemfunc (" ls -1 " + DATADir + "wrfout_d01* ")
>>>>      numFILES = dimsizes(FILES)
>>>>
>>>>      files_all = addfiles(FILES+".nc","r")
>>>>
>>>> ; We generate plots, but what kind do we prefer?
>>>> ;  type = "x11"
>>>> ;  type = "pdf"
>>>> ; type = "ps"
>>>> ; type = "ncgm"
>>>>   type = "png"
>>>> ;  wks = gsn_open_wks(type,"plt_PressureLevel1")
>>>>
>>>> ; Set some Basic Plot options
>>>>   res = True
>>>>   res at MainTitle                   = "WRF MODEL OUTPUT"
>>>>   res at Footer = False
>>>>
>>>>   res at cnInfoLabelOn = False ; Suppress text "CONTOUR FROM # TO # by #"
>>>>   res at gsnCenterString = "" ;"gsnCenterString ~C~ ~Z80~ (Default: None)"
>>>>   res at gsnLeftString   = "" ;"gsnRightString ~C~ ~Z80~ (Default:
>>>> Long_Name)"
>>>>   res at gsnRightString  = "" ;"gsnRightString ~C~ ~Z80~ (Default: Units)"
>>>>
>>>>   pltres = True
>>>>   mpres = True
>>>>   mpres at mpFillOn                    = False        ; turn off gray fill
>>>>   mpres at mpOutlineBoundarySets       = "National"   ; turn on country
>>>> boundaries
>>>>   mpres at mpGeophysicalLineColor      = "Navy"       ; color of cont.
>>>> outlines
>>>>   mpres at mpGeophysicalLineThicknessF = 1.5          ; thickness of
>>>> outlines
>>>>   mpres at mpNationalLineColor         = "Black"
>>>>   mpres at mpNationalLineThicknessF    = 2.5          ; turn on country
>>>> boundaries
>>>>
>>>>   mpres at mpDataBaseVersion           = "MediumRes"  ; choose higher
>>>> resolution
>>>>   mpres at mpDataSetName               = "Earth..4"   ; choose most
>>>> recent boundaries
>>>>
>>>>   mpres at mpMaxLatF                   = -4           ; choose subregion
>>>>   mpres at mpMinLatF                   = -21
>>>>   mpres at mpMaxLonF                   =  37
>>>>   mpres at mpMinLonF                   =  21
>>>>
>>>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>>>>
>>>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>>>>
>>>> ; What times and how many time steps are in the data set?
>>>>   times = files_all[:]->Times
>>>>   ntimes = dimsizes(times)         ; number of times in the file
>>>>
>>>> ; The specific pressure levels that we want the data interpolated to.
>>>>   pressure_levels = (/ 850., 700., 500., 300./)   ; pressure levels to
>>>> plot
>>>>   nlevels         = dimsizes(pressure_levels)     ; number of pressure
>>>> levels
>>>>
>>>>
>>>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>>>>
>>>> ;  VTlab = (/ "T+00", T+00", "T+06", "T+12", "T+18", "T+24", "T+30",
>>>> "T+36", "T+42", "T+48"/)   ; Validity for file name
>>>>
>>>> ; get time information and strip out the day and hour
>>>>   times_in_file = files_all[:]->Times
>>>>   dims = dimsizes (times)
>>>>    ntimes = dimsizes (times(:,0))
>>>>
>>>>   times_to_use = new(dims(0),string)
>>>>
>>>>   do i=0,dims(0)-1
>>>>     times_to_use(i) = chartostring(times_in_file(i,8:12))
>>>>   end do
>>>>
>>>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>>>>   do it = 0,ntimes(0)-1,2             ; TIME LOOP
>>>>
>>>>     print("Working on time: " +  times_to_use(it) )
>>>>     res at TimeLabel =  times_to_use(it)   ; Set Valid time to use on
>>>> plots
>>>>
>>>>
>>>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>>>> ; First get the variables we will need
>>>>
>>>>     tc = wrf_user_getvar(files_all,"tc",it)        ; T in C
>>>>     u  = wrf_user_getvar(files_all,"ua",it)        ; u averaged to mass
>>>> points
>>>>     v  = wrf_user_getvar(files_all,"va",it)        ; v averaged to mass
>>>> points
>>>>     p  = wrf_user_getvar(files_all, "pressure",it) ; pressure is our
>>>> vertical coordinate
>>>>     z  = wrf_user_getvar(files_all, "z",it)        ; grid point height
>>>>     rh = wrf_user_getvar(files_all,"rh",it)        ; relative humidity
>>>>
>>>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>>>>     do level = 0,nlevels-1                 ; LOOP OVER LEVELS
>>>>       pressure = pressure_levels(level)
>>>>
>>>>       tc_plane = wrf_user_intrp3d(tc,p,"h",pressure,0.,False)
>>>>       z_plane  = wrf_user_intrp3d( z,p,"h",pressure,0.,False)
>>>>       rh_plane = wrf_user_intrp3d(rh,p,"h",pressure,0.,False)
>>>>       u_plane  = wrf_user_intrp3d( u,p,"h",pressure,0.,False)
>>>>       v_plane  = wrf_user_intrp3d( v,p,"h",pressure,0.,False)
>>>>
>>>>       spd     = (u_plane*u_plane + v_plane*v_plane)^(0.5) ; m/sec
>>>>       spd at description = "Wind Speed"
>>>>       spd at units = "m/s"
>>>>       u_plane = u_plane*1.94386     ; kts
>>>>       v_plane = v_plane*1.94386     ; kts
>>>>       u_plane at units = "kts"
>>>>       v_plane at units = "kts"
>>>>
>>>>       wks = gsn_open_wks(type,"Plots00-" + "P" + pressure_levels(level)
>>>> + "_" + times_to_use(it) + "Z")
>>>>
>>>>       ; Plotting options for T
>>>>         opts = res
>>>>         print(opts))
>>>>
>>>>         opts at cnLineColor = "Red"
>>>>         opts at ContourParameters = (/ 5.0 /)
>>>>         opts at cnInfoLabelOrthogonalPosF = 0.07  ; offset second label
>>>> information
>>>>         opts at gsnContourLineThicknessesScale = 2.0
>>>>         contour_tc = wrf_contour(files_all[it],wks,tc_plane,opts)
>>>>         delete(opts)
>>>>
>>>>        ; MAKE PLOT
>>>>         if ( pressure .eq. 850 ) then   ; plot temp, rh, height, wind
>>>> barbs
>>>>           opts_z at ContourParameters = (/ 20.0 /)
>>>>           contour_height = wrf_contour(files_all[it],wks,z_plane,opts_z)
>>>>           plot =
>>>> wrf_map_overlays(files_all[it],wks,(/contour_rh,contour_tc,contour_height, \
>>>>                                     vector/),pltres,mpres)
>>>>         end if
>>>>
>>>>     end do      ; END OF LEVEL LOOP
>>>>
>>>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>>>>   end do        ; END OF TIME LOOP
>>>> end
>>>>
>>>>
>>>>
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>>>
>>>
>>> --
>>> Adam Phillips
>>> Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
>>> www.cgd.ucar.edu/staff/asphilli/   303-497-1726
>>>
>>> <http://www.cgd.ucar.edu/staff/asphilli>
>>>
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