[ncl-talk] Explicit YL tickmarks and labels not working with gsn_contour

Dennis Shea shea at ucar.edu
Mon Feb 24 13:09:02 MST 2020


I do not see anything 'wrong.'
Likely, the *gsn_contour
<https://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_contour.shtml>
*function
is doing something that negates your settings.
Likely, the *gsn_csm_contour *
<https://www.ncl.ucar.edu/Document/Graphics/Interfaces/gsn_csm_contour.shtml>would
recognize the 'YL' coordinate variable. but not the 'XB' labels.

Try:
res at tmYLValues     = ispan(0,*dimsizes(*mh_reverse&level)-1,1)
res at tmYLLabels     =
(/"1000","975","950","925","900","875","850","825","800","775","750","700","650","600"/)

Good luck

On Fri, Feb 21, 2020 at 12:49 PM Tabish Ansari via ncl-talk <
ncl-talk at ucar.edu> wrote:

> Hi
>
> I am plotting a time series of vertical profiles of temperature using
> gsn_contour, and want to explicitly label the Y-axis with pressure levels
> (1000hPa up to 600hPa) but the Y-axis tickmarks and labels disappear on
> setting it to explicit mode. Could you please point out what am I doing
> wrong here?
>
> Here's the script:
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> *load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRF_contributed.ncl"load
> "$NCARG_ROOT/lib/ncarg/nclscripts/contrib/time_axis_labels.ncl";load
> "/data1/tabish/nclscripts/cd_inv_string.ncl"load
> "$NCARG_ROOT/lib/ncarg/nclscripts/contrib/cd_string.ncl"load
> "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"load
> "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"begina =
> addfile("/ichec/work/ngear013c/ERA5_t_1000-600hPa_27-30Jun2011.nc","r");READ
> 4D TEMPERATURE DATA FROM NC FILE. IT IS IN SHORT DATAYPE WITH SCALE FACTOR
> AND OFFSET AS METADATAt = a->tprintVarSummary(t);READING MACE HEAD GRID
> VERTICAL PROFILE FOR ALL TIMES AND CONVERTING TO FLOAT ALONG WITH SCALING
> AND OFFSET USING SHORT2FLT FUNCTIONmh =
>  short2flt(t(:,:,{53.3247},{360.0-9.9033})); mace head gridic =
>  short2flt(t(:,:,{65},{360.0-30.0})); icelandic bloom source gridib =
>  short2flt(t(:,:,{57},{360.0-26.0})); a grid in between the source and
> receptorprint("TIME SERIES OF VERTICAL TEMPERATURE PROFILES AT THE 3 GRIDS
> EXTRACTED SUCCESSFULLY!") printVarSummary(mh)mh_reorder =
> mh(level|:,time|:)ic_reorder = ic(level|:,time|:)ib_reorder =
> ib(level|:,time|:)mh_reverse = mh_reorder(::-1,:)         ; reverses 0th
> dimension i.e. vert levelsic_reverse = ic_reorder(::-1,:)         ;
> reverses 0th dimension i.e. vert levelsib_reverse = ib_reorder(::-1,:)
>     ; reverses 0th dimension i.e. vert levelswks =
> gsn_open_wks("x11","temperature_vertprofile_timeseries")    ; open a
> workstationgsn_define_colormap(wks,"BlAqGrYeOrReVi200")  res = True
> res at vpHeightF            = 0.20       ; height  res at gsnDraw             =
> False           ; don't draw  res at gsnFrame            = False           ;
> don't advance frame;MAKE EXPLICIT TICKMARKS FOR Y-AXIS TO SHOW PRESSURE
> LEVELS  res at tmYLOn = True  res at tmYLMode          = "Explicit"    ; Define
> own tick mark labels.  res at tmYROn = False  res at tmXTOn = False
> res at tmYLValues        =
> (/1000,975,950,925,900,875,850,825,800,775,750,700,650,600/)             ;
> location of explicit labels  res at tmYLLabelsOn   = True  res at tmYLLabels
>  =
> (/"1000","975","950","925","900","875","850","825","800","775","750","700","650","600"/);--------------------------------------------------;
> The time_axis_label function adds additional; resources to "res" to produce
> nicely-formatted; time labels on X axis. This function only works; if you
> have a time "units" recognized by the; cd_calendar
> function.;--------------------------------------------------  restick
>     = True  restick at ttmFormat = "%D/%N/%Y"  restick at ttmMajorStride= 24
> restick at ttmMinorStride= 6  timearr = ispan (0,95,1)  timearr at units = "hours
> since 2011-06-27 00:00:00"  time_axis_labels(timearr,res,restick)
> res at trXMaxF=max(timearr)  res at tmXBLabelFontHeightF = 0.01
> res at gsnSpreadColors          = True             ; use full range of colors
> res at cnFillOn                 = True             ; turns on color fill
> res at cnLevelSelectionMode     = "ManualLevels"   ; set levels manually
> res at cnMinLevelValF           = 260  res at cnMaxLevelValF           = 280.
> res at cnLevelSpacingF          = 2  res at cnLinesOn                = False
> res at cnLineLabelsOn           = False  res at cnInfoLabelOn            =
> Falseres at tiMainString             = ""plot1    =
> gsn_contour(wks,mh_reverse,res)res at tiMainString             = ""plot2    =
> gsn_contour(wks,ic_reverse,res)res at tiMainString             = ""plot3    =
> gsn_contour(wks,ib_reverse,res);************************************************;
> create panel;************************************************resP =
> TrueresP at gsnPanelMainString = "Temperature profile evolution over 4
> days"resP at gsnPanelYWhiteSpacePercent = 0.0resP at gsnPanelLabelBar    = True
>              ; add common colorbarresP at lbLabelFontHeightF  = 0.007
>       ; make labels
> smallergsn_panel(wks,(/plot1,plot2,plot3/),(/3,1/),resP)             ; now
> draw as one plotend*
>
>
> Thanks a lot in advance!
>
> Tabish
>
>
>
> *Tabish U Ansari*
>
> *Postdoctoral Researcher *
>
> *Centre for Climate and Air Pollution Studies (C-CAPS)*
> *School of Physics, NUI-Galway**, Ireland*
> *ResearchGate: https://www.researchgate.net/profile/Tabish_Ansari
> <https://www.researchgate.net/profile/Tabish_Ansari>*
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