[ncl-talk] Overlay profile of topography
Appo derbetini
appopson4 at gmail.com
Fri May 12 12:17:56 MDT 2017
Thank you Mary
2017-05-12 16:07 GMT+01:00 Mary Haley <haley at ucar.edu>:
> Hi Appo,
>
> The first thing I tell people when they are trying to overlay plots and
> not seeing both plots is to draw them individually before you call
> overlay. This way you can make sure the individual plots look okay before
> you get to the overlay call.
>
> All this involves in your case is commenting out the gsnDraw and gsnFrame
> settings.
>
> When you do this, you'll see that the Y axis on the wind profile ranges
> from 20000 to 100000, while on the humidity plot it ranges from 200 to 1000.
>
> It's not well-advertised, but under the hood, gsn_csm_pres_hgt converts
> the pressure axis to mb before plotting. (I've fixed the documentation to
> make this more clear.)
>
> gsn_csm_vector doesn't do this, so you will need to scale the pressure
> values yourself before plotting.
>
> I suggest scaling all the arrays, just to be consistent, even for r00:
>
> ;---Convert levels from Pa to hPa for consistent plotting
>
> r00&plev = r00&plev * 0.01
> udiv00&plev = udiv00&plev * 0.01
> omega00&plev = omega00&plev * 0.01
> r00&plev at units = "mb"
> udiv00&plev at units = "mb"
> omega00&plev at units = "mb"
>
> --Mary
>
>
> On Wed, May 10, 2017 at 3:02 AM, Appo derbetini <appopson4 at gmail.com>
> wrote:
>
>> Dear Mary,
>>
>> I am very surprise.
>> I try the script with another dataset.
>> As you can see in the attached plot, only humidity is displayed.
>> Vertical profile of wind is not appearing.
>>
>> What i going wrong?
>>
>> Best regards,
>>
>> Appo
>>
>>
>>
>>
>>
>> 2017-05-08 20:22 GMT+01:00 Appo derbetini <appopson4 at gmail.com>:
>>
>>> Thank you very much Mary,
>>> Now, I have a perfect plot.
>>> Cheers,
>>> Appo
>>>
>>> 2017-05-07 16:08 GMT+01:00 Mary Haley <haley at ucar.edu>:
>>>
>>>> Hi,
>>>>
>>>> If by "optimized for this plot" you mean is the plotting being done
>>>> correctly, then I would say "yes".
>>>>
>>>> However, I did notice that you have two slightly different scales on
>>>> your color bar. The top one goes from 30 to 90 in steps of 5, while the
>>>> bottom one goes from 20 to 90 in steps of 5.
>>>>
>>>> If somebody is not paying attention when looking at these images, they
>>>> may not realize that the bottom purple color represents values < 30 in the
>>>> top plot, while it represents values < 20 in the bottom plot.
>>>>
>>>> I recommend using the same color scale for both plots, and then using a
>>>> single panel labelbar so that it's more clear what the colors mean.
>>>>
>>>> To make sure you use the same contour levels for both plots, set these
>>>> resources:
>>>>
>>>> res at cnLevelSelectionMode = "ManualLevels" ; manually set contour levels
>>>> res at cnMinLevelValF = 20. ; minimum contour level
>>>> res at cnMaxLevelValF = 90. ; maximum contour level
>>>> res at cnLevelSpacingF = 5.
>>>>
>>>> You then you need to turn off the individual labelbars for both plots, so you can set a common labelbar in the panel:
>>>>
>>>> res at lbLabelBarOn = False
>>>>
>>>> Now, in the panel resources, set:
>>>>
>>>> pres at gsnPanelLabelBar = True
>>>> pres2 at lbOrientation = "vertical" ; set this if you want a vertical label bar
>>>>
>>>> If you need more customization of your panel plot, then we have some examples on our panel page:
>>>>
>>>> http://www.ncl.ucar.edu/Applications/panel.shtml
>>>>
>>>> --Mary
>>>>
>>>>
>>>>
>>>>
>>>> On Fri, May 5, 2017 at 4:07 AM, Appo derbetini <appopson4 at gmail.com>
>>>> wrote:
>>>>
>>>>> Dear Mary,
>>>>> I applied your suggestions.
>>>>> Now, things are going like a charm.
>>>>> Here attached figure obtained and script.
>>>>> I guess that this script is optimized for this plot?
>>>>>
>>>>> Thank you very much
>>>>>
>>>>> begin
>>>>>
>>>>> in1 = addfile("uvwr.mean.JJAS.nc", "r")
>>>>> ; open netcdf file
>>>>> input4 = addfile("topo.nc", "r")
>>>>>
>>>>> u00 = in1->u
>>>>> v00 = in1->v
>>>>> w00 = in1->w
>>>>> rhum00 = in1->r
>>>>>
>>>>> topo1 = input4->HT
>>>>>
>>>>>
>>>>> lat = in1->latitude
>>>>> lon = in1->longitude
>>>>>
>>>>>
>>>>> dv00 = uv2dvF (u00, v00)
>>>>> uvd00 = dv2uvF (dv00)
>>>>> ucomp_div00 = uvd00(0, :, : , :, :)
>>>>> copy_VarCoords(u00, ucomp_div00)
>>>>>
>>>>>
>>>>> sellat = 3.0
>>>>> latmin = -5.0
>>>>> latmax = 3.0
>>>>> lonmin = min(lon)
>>>>> lonmax = 20.0
>>>>>
>>>>> sellat2 = -1.0
>>>>> latmin2 = -4.0
>>>>> latmax2 = -1.0
>>>>> lonmin = min(lon)
>>>>> lonmax = 20.0
>>>>>
>>>>> udiv00 = dim_avg_n_Wrap(ucomp_div00(:, :, {latmin:latmax},
>>>>> {lonmin:lonmax}), 2)
>>>>> omega00 = dim_avg_n_Wrap(w00(:, :, {latmin:latmax},
>>>>> {lonmin:lonmax}), 2)
>>>>> r00 = dim_avg_n_Wrap(rhum00(:, :, {latmin:latmax},{lonmin:lonmax}),
>>>>> 2)
>>>>>
>>>>> udiv002 = dim_avg_n_Wrap(ucomp_div00(:, :, {latmin2:latmax2},
>>>>> {lonmin:lonmax}), 2)
>>>>> omega002 = dim_avg_n_Wrap(w00(:, :, {latmin2:latmax2},
>>>>> {lonmin:lonmax}), 2)
>>>>> r002 = dim_avg_n_Wrap(rhum00(:, :, {latmin2:latmax2},{lonmin:lonmax}),
>>>>> 2)
>>>>>
>>>>>
>>>>>
>>>>> elev = 1013.25*(1 - topo1*0.0065/288.15)^5.25145
>>>>>
>>>>> copy_VarCoords(topo1, elev)
>>>>>
>>>>> ; topo = dim_avg_n_Wrap(elev({latmin:latmax},{lonmin:lonmax}), 0)
>>>>>
>>>>> topo = elev({sellat}, {lonmin:lonmax})
>>>>> topo2 = elev({sellat2}, {lonmin:lonmax})
>>>>>
>>>>> ;---create plot
>>>>> wks = gsn_open_wks ("eps", "Overlay_Rhum_udiv_JJAS_Timmean_5S3N")
>>>>> ; open workstation
>>>>> plot = new(2, graphic)
>>>>> res = True ; plot mods desired
>>>>> res at gsnDraw = False ; turn off draw
>>>>> res at gsnFrame = False ; turn off frame
>>>>> res at gsnMaximize = True
>>>>>
>>>>> res at gsnRightString = ""
>>>>> res at gsnLeftString = ""
>>>>>
>>>>> cnres = res
>>>>> cnres at cnFillOn = True ; turn on color fill
>>>>> cnres at cnFillPalette = "MPL_rainbow"
>>>>> cnres at lbOrientation = "Vertical"
>>>>> cnres at pmLabelBarOrthogonalPosF = 0.08
>>>>> cnres at tiYAxisString = "Pressure (hPa)"
>>>>>
>>>>> vcres = res
>>>>> vcres at vcRefMagnitudeF = 10.0 ; define vector ref mag
>>>>> vcres at vcRefLengthF = 0.1 ; define length of vec ref
>>>>> vcres at vcGlyphStyle = "CurlyVector" ; turn on curley vectors
>>>>> vcres at vcMinDistanceF = 0.04 ; thin out vectors
>>>>> vcres at vcMapDirection = False
>>>>> vcres at vcLineArrowThicknessF = 3.0
>>>>> vcres at vcVectorDrawOrder = "Draw" ; draw vectors last
>>>>>
>>>>>
>>>>>
>>>>> contour_plota1 = gsn_csm_pres_hgt(wks, r00(0, :,
>>>>> {lonmin:lonmax}), cnres)
>>>>> vector_plota1 = gsn_csm_vector(wks, udiv00(0, :,
>>>>> {lonmin:lonmax}), -200.0*omega00(0, :, {lonmin:lonmax}), vcres )
>>>>>
>>>>> contour_plota2 = gsn_csm_pres_hgt(wks, r002(0, :,
>>>>> {lonmin:lonmax}), cnres)
>>>>> vector_plota2 = gsn_csm_vector(wks, udiv002(0, :,
>>>>> {lonmin:lonmax}), -200.0*omega002(0, :, {lonmin:lonmax}), vcres )
>>>>>
>>>>>
>>>>> ;---Add topo field using a filled polygon.
>>>>> getvalues contour_plota1
>>>>> "trYMinF" : ymin
>>>>> "trYMaxF" : ymax
>>>>> end getvalues
>>>>>
>>>>> ;---Create new X,Y arrays that form a closed polygon.
>>>>> nlon = dimsizes(topo&lon)
>>>>> xtopo = new(nlon+3,typeof(topo&lon))
>>>>> ytopo = new(nlon+3,typeof(topo))
>>>>>
>>>>> xtopo(0:nlon-1) = topo&lon
>>>>> ytopo(0:nlon-1) = topo
>>>>> xtopo(nlon) = topo&lon(nlon-1)
>>>>> ytopo(nlon) = ymax ; Use actual Y max of contour plot
>>>>> xtopo(nlon+1) = topo&lon(0)
>>>>> ytopo(nlon+1) = ymax
>>>>> xtopo(nlon+2) = topo&lon(0) ; This last point closes
>>>>> ytopo(nlon+2) = topo(0) ; the polygon.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ;---Add topo field using a filled polygon.
>>>>> getvalues contour_plota2
>>>>> "trYMinF" : ymin2
>>>>> "trYMaxF" : ymax2
>>>>> end getvalues
>>>>>
>>>>> ;---Create new X,Y arrays that form a closed polygon.
>>>>> nlon = dimsizes(topo2&lon)
>>>>> xtopo2 = new(nlon+3,typeof(topo2&lon))
>>>>> ytopo2 = new(nlon+3,typeof(topo2))
>>>>>
>>>>> xtopo2(0:nlon-1) = topo2&lon
>>>>> ytopo2(0:nlon-1) = topo2
>>>>> xtopo2(nlon) = topo2&lon(nlon-1)
>>>>> ytopo2(nlon) = ymax2 ; Use actual Y max of contour plot
>>>>> xtopo2(nlon+1) = topo2&lon(0)
>>>>> ytopo2(nlon+1) = ymax2
>>>>> xtopo2(nlon+2) = topo2&lon(0) ; This last point closes
>>>>> ytopo2(nlon+2) = topo2(0) ; the polygon.
>>>>>
>>>>> ;---Add the polygon to the contour plot.
>>>>> gnres = True
>>>>> gnres at gsFillColor = "gray20"
>>>>>
>>>>> id = gsn_add_polygon(wks, contour_plota1, xtopo, ytopo, gnres)
>>>>> i2 = gsn_add_polygon(wks, contour_plota2, xtopo2, ytopo2, gnres)
>>>>>
>>>>> overlay(contour_plota1, vector_plota1)
>>>>> overlay(contour_plota2, vector_plota2)
>>>>>
>>>>> plot(0) = contour_plota1
>>>>> plot(1) = contour_plota2
>>>>>
>>>>> ;draw(contour_plot) ; This draws everything
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> pres = True
>>>>> pres at gsnMaximize = True
>>>>> gsn_panel(wks, plot, (/2, 1/), pres)
>>>>>
>>>>>
>>>>>
>>>>> end
>>>>>
>>>>>
>>>>>
>>>>> 2017-05-05 0:39 GMT+01:00 Mary Haley <haley at ucar.edu>:
>>>>>
>>>>>> I'm so sorry I didn't get back to you sooner on this. I've been
>>>>>> swamped and then was out-of-town for a few days.
>>>>>>
>>>>>> It's a little hard to follow what's going on in this script without
>>>>>> being able to run it.
>>>>>>
>>>>>> I think the issue is that you are using the "res" variable in your
>>>>>> call to gsn_panel, and "res" has both gsnDraw and gsnFrame set to False.
>>>>>> This will cause *no* plot to appear when you call gsn_panel. I'm surprised
>>>>>> you are getting any plot at all.
>>>>>>
>>>>>> I recommend creating a new resource variable for gsn_panel, because
>>>>>> you really don't want to use the one that you used for the plots themselves:
>>>>>>
>>>>>> pres = True
>>>>>> pres at gsnMaximize = True
>>>>>> gsn_panel(wks, plot, (/2, 1/), pres)
>>>>>>
>>>>>> If you
>>>>>> continue to have problems, then it would help if you send me the
>>>>>> two data files. If you can't send the files, then send me the image you're
>>>>>> getting, and any error messages that the script produces.
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> --Mary
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Tue, Apr 25, 2017 at 12:56 AM, Appo derbetini <appopson4 at gmail.com
>>>>>> > wrote:
>>>>>>
>>>>>>> Good morning Mary,
>>>>>>> Sorry , i forgot to add ncl-users email to the reply.
>>>>>>>
>>>>>>> I am attaching the modified version of the script were I'm trying to
>>>>>>> create a panel plot for two transects at latitude sellat and sellat2.
>>>>>>> Unfortunately, only one plot appears.
>>>>>>> Really, I don't know what is wrong this script.
>>>>>>>
>>>>>>> Your help will be appreciated.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> begin
>>>>>>>
>>>>>>> in1 = addfile("uvwr.mean.JJAS.nc",
>>>>>>> "r") ; open netcdf file
>>>>>>> input4 = addfile("atanas_topo.nc", "r")
>>>>>>>
>>>>>>> u00 = in1->u
>>>>>>> v00 = in1->v
>>>>>>> w00 = in1->w
>>>>>>> rhum00 = in1->r
>>>>>>>
>>>>>>> topo1 = input4->HT
>>>>>>>
>>>>>>>
>>>>>>> lat = in1->latitude
>>>>>>> lon = in1->longitude
>>>>>>>
>>>>>>>
>>>>>>> dv00 = uv2dvF (u00, v00)
>>>>>>> uvd00 = dv2uvF (dv00)
>>>>>>> ucomp_div00 = uvd00(0, :, : , :, :)
>>>>>>> copy_VarCoords(u00, ucomp_div00)
>>>>>>>
>>>>>>>
>>>>>>> sellat = 3.0
>>>>>>> sellat2 = -2.5
>>>>>>> latmin = -5.0
>>>>>>> latmax = 3.0
>>>>>>> lonmin = min(lon)
>>>>>>> lonmax = 20.0
>>>>>>>
>>>>>>> udiv00 = dim_avg_n_Wrap(ucomp_div00(:, :, {latmin:latmax},
>>>>>>> {lonmin:lonmax}), 2)
>>>>>>> omega00 = dim_avg_n_Wrap(w00(:, :, {latmin:latmax},
>>>>>>> {lonmin:lonmax}), 2)
>>>>>>> r00 = dim_avg_n_Wrap(rhum00(:, :, {latmin:latmax},{lonmin:lonmax}),
>>>>>>> 2)
>>>>>>>
>>>>>>> ;udiv00 = ucomp_div00(:, :, {sellat}, {lonmin:lonmax})
>>>>>>> ;omega00 = w00(:, :, {sellat}, {lonmin:lonmax})
>>>>>>> ;r00 = rhum00(:, :, {sellat},{lonmin:lonmax})
>>>>>>>
>>>>>>>
>>>>>>> elev = 1013.25*(1 - topo1*0.0065/288.15)^5.25145
>>>>>>>
>>>>>>> copy_VarCoords(topo1, elev)
>>>>>>>
>>>>>>> ; topo = dim_avg_n_Wrap(elev({latmin:latmax},{lonmin:lonmax}), 0)
>>>>>>>
>>>>>>> topo = elev({sellat}, {lonmin:lonmax})
>>>>>>> topo2 = elev({sellat2}, {lonmin:lonmax})
>>>>>>>
>>>>>>> ;---create plot
>>>>>>> wks = gsn_open_wks ("eps", "Overlay_Rhum_udiv_topo") ;
>>>>>>> open workstation
>>>>>>> plot = new(2, graphic)
>>>>>>> res = True ; plot mods
>>>>>>> desired
>>>>>>> res at gsnDraw = False ; turn off draw
>>>>>>> res at gsnFrame = False ; turn off frame
>>>>>>> res at gsnMaximize = True
>>>>>>>
>>>>>>> res at gsnRightString = ""
>>>>>>> res at gsnLeftString = ""
>>>>>>>
>>>>>>> cnres = res
>>>>>>> cnres at cnFillOn = True ; turn on color fill
>>>>>>> cnres at cnFillPalette = "MPL_rainbow"
>>>>>>> cnres at lbOrientation = "Vertical"
>>>>>>> cnres at pmLabelBarOrthogonalPosF = 0.08
>>>>>>> cnres at tiYAxisString = "Pressure (hPa)"
>>>>>>>
>>>>>>> vcres = res
>>>>>>> vcres at vcRefMagnitudeF = 10.0 ; define vector ref
>>>>>>> mag
>>>>>>> vcres at vcRefLengthF = 0.1 ; define length of vec
>>>>>>> ref
>>>>>>> vcres at vcGlyphStyle = "CurlyVector" ; turn on curley
>>>>>>> vectors
>>>>>>> vcres at vcMinDistanceF = 0.04 ; thin out vectors
>>>>>>> vcres at vcMapDirection = False
>>>>>>> vcres at vcLineArrowThicknessF = 3.0
>>>>>>> vcres at vcVectorDrawOrder = "Draw" ; draw vectors last
>>>>>>>
>>>>>>> contour_plot_1 = gsn_csm_pres_hgt(wks, r00(0, :,
>>>>>>> {lonmin:lonmax}), cnres)
>>>>>>> vector_plot_1 = gsn_csm_vector(wks, udiv00(0, :,
>>>>>>> {lonmin:lonmax}), -200.0*omega00(0, :, {lonmin:lonmax}), vcres )
>>>>>>>
>>>>>>> contour_plot_2 = gsn_csm_pres_hgt(wks, r00(0, :,
>>>>>>> {lonmin:lonmax}), cnres)
>>>>>>> vector_plot_2 = gsn_csm_vector(wks, udiv00(0, :,
>>>>>>> {lonmin:lonmax}), -200.0*omega00(0, :, {lonmin:lonmax}), vcres )
>>>>>>>
>>>>>>>
>>>>>>> ;---Add topo field using a filled polygon.
>>>>>>> getvalues contour_plot_1
>>>>>>> "trYMinF" : ymin
>>>>>>> "trYMaxF" : ymax
>>>>>>> end getvalues
>>>>>>>
>>>>>>>
>>>>>>> ;---Add topo field using a filled polygon.
>>>>>>> getvalues contour_plot_2
>>>>>>> "trYMinF" : ymin2
>>>>>>> "trYMaxF" : ymax2
>>>>>>> end getvalues
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> ;---Create new X,Y arrays that form a closed polygon.
>>>>>>> nlon = dimsizes(topo&lon)
>>>>>>> xtopo = new(nlon+3,typeof(topo&lon))
>>>>>>> ytopo = new(nlon+3,typeof(topo))
>>>>>>>
>>>>>>> xtopo(0:nlon-1) = topo&lon
>>>>>>> ytopo(0:nlon-1) = topo
>>>>>>> xtopo(nlon) = topo&lon(nlon-1)
>>>>>>> ytopo(nlon) = ymax ; Use actual Y max of contour plot
>>>>>>> xtopo(nlon+1) = topo&lon(0)
>>>>>>> ytopo(nlon+1) = ymax
>>>>>>> xtopo(nlon+2) = topo&lon(0) ; This last point closes
>>>>>>> ytopo(nlon+2) = topo(0) ; the polygon.
>>>>>>>
>>>>>>>
>>>>>>> nlon2 = dimsizes(topo2&lon)
>>>>>>> xtopo2 = new(nlon2+3,typeof(topo2&lon))
>>>>>>> ytopo2 = new(nlon2+3,typeof(topo2))
>>>>>>>
>>>>>>> xtopo2(0:nlon-1) = topo2&lon
>>>>>>> ytopo2(0:nlon-1) = topo2
>>>>>>> xtopo2(nlon) = topo2&lon(nlon-1)
>>>>>>> ytopo2(nlon) = ymax2 ; Use actual Y max of contour
>>>>>>> plot
>>>>>>> xtopo2(nlon+1) = topo2&lon(0)
>>>>>>> ytopo2(nlon+1) = ymax2
>>>>>>> xtopo2(nlon+2) = topo2&lon(0) ; This last point closes
>>>>>>> ytopo2(nlon+2) = topo2(0) ; the polygon.
>>>>>>>
>>>>>>>
>>>>>>> ;---Add the polygon to the contour plot.
>>>>>>> gnres = True
>>>>>>> gnres at gsFillColor = "gray20"
>>>>>>>
>>>>>>> id = gsn_add_polygon(wks, contour_plot_1, xtopo, ytopo, gnres)
>>>>>>> id2 = gsn_add_polygon(wks, contour_plot_2, xtopo2, ytopo2, gnres)
>>>>>>> overlay(contour_plot_1, vector_plot_1)
>>>>>>> overlay(contour_plot_2, vector_plot_2)
>>>>>>>
>>>>>>>
>>>>>>> draw(contour_plot_1) ; This draws everything
>>>>>>> draw(contour_plot_2) ; This draws everything
>>>>>>>
>>>>>>> plot(0) = contour_plot_1
>>>>>>>
>>>>>>> plot(1) = contour_plot_2
>>>>>>>
>>>>>>> gsn_panel(wks,plot, (/2, 1/), res) ; now draw as
>>>>>>> one plot
>>>>>>>
>>>>>>>
>>>>>>> end
>>>>>>>
>>>>>>>
>>>>>>> 2017-04-24 21:58 GMT+01:00 Mary Haley <haley at ucar.edu>:
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> In the future, please email ncl-talk with follow-up questions so
>>>>>>>> everybody can benefit from the answers.
>>>>>>>>
>>>>>>>> What is the exact error message you're getting?
>>>>>>>>
>>>>>>>> --Mary
>>>>>>>>
>>>>>>>>
>>>>>>>> On Mon, Apr 24, 2017 at 4:08 AM, Appo derbetini <
>>>>>>>> appopson4 at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> Hi Mary,
>>>>>>>>>
>>>>>>>>> Since you send me the script that plot masked fields, I am working
>>>>>>>>> to do it for many latitude in a panel plot.
>>>>>>>>> Always i got many errors saying that i cannot overlay.
>>>>>>>>> How to solve it?
>>>>>>>>> Thank you in advance.
>>>>>>>>>
>>>>>>>>> Appo
>>>>>>>>>
>>>>>>>>> 2017-04-10 8:23 GMT+01:00 Appo derbetini <appopson4 at gmail.com>:
>>>>>>>>>
>>>>>>>>>> Thank you very much.
>>>>>>>>>> It's look like what I'm trying to do.
>>>>>>>>>> regards
>>>>>>>>>>
>>>>>>>>>> 2017-04-09 22:11 GMT+01:00 Mary Haley <haley at ucar.edu>:
>>>>>>>>>>
>>>>>>>>>>> I'm sorry I didn't get back to this sooner, but I was having
>>>>>>>>>>> trouble trying to understand what you are doing in the script.
>>>>>>>>>>>
>>>>>>>>>>> First, I'm not sure it makes sense to take an average of
>>>>>>>>>>> topographical data across a set of latitudes and plot that as a topo layer.
>>>>>>>>>>>
>>>>>>>>>>> But, that aside, I think you just want to plot the topo line as
>>>>>>>>>>> a filled polygon instead of a separate XY plot.
>>>>>>>>>>>
>>>>>>>>>>> I'm not sure what I've attached is correct, but hopefully it
>>>>>>>>>>> gives you an idea of what to do.
>>>>>>>>>>>
>>>>>>>>>>> Note that I'm using "sellat" to select a single latitude value,
>>>>>>>>>>> rather than averaging across a range of latitudes.
>>>>>>>>>>>
>>>>>>>>>>> --Mary
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Sun, Apr 9, 2017 at 2:10 AM, Appo derbetini <
>>>>>>>>>>> appopson4 at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Dear Mary,
>>>>>>>>>>>>
>>>>>>>>>>>> Despite applying what you suggest the problem remain the same
>>>>>>>>>>>> Thank you very much
>>>>>>>>>>>>
>>>>>>>>>>>> 2017-04-06 8:53 GMT+01:00 Appo derbetini <appopson4 at gmail.com>:
>>>>>>>>>>>>
>>>>>>>>>>>>> Dear Mary,
>>>>>>>>>>>>>
>>>>>>>>>>>>> Datasets are uploaded as indicated.
>>>>>>>>>>>>>
>>>>>>>>>>>>> What I really trying to do is something like Mask Example 14.
>>>>>>>>>>>>>
>>>>>>>>>>>>> But I don't want to interpolate topography to grid of wind.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Here attached figure produced by the script
>>>>>>>>>>>>>
>>>>>>>>>>>>> Thank you
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> 2017-04-05 15:36 GMT+01:00 Mary Haley <haley at ucar.edu>:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> I don't think I've ever seen this error before.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> It's hard to debug this particular script without having the
>>>>>>>>>>>>>> data so I can run it. But, I'm wondering if this line might be part of the
>>>>>>>>>>>>>> problem:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> plot = gsn_csm_pres_hgt_vector(wks, r00(0, :,
>>>>>>>>>>>>>> {lonmin:lonmax}), udiv00(0, :, {lonmin:lonmax}), -200.0*omega00(0, :,
>>>>>>>>>>>>>> {lonmin:lonmax}), res )
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> When you do an arithmetic operation on an array, like:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> -200. * omega00
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> you end up stripping all of the metadata off omega00. What's
>>>>>>>>>>>>>> getting passed into gsn_csm_pres_hgt has no metadata. This might be okay,
>>>>>>>>>>>>>> however, because I think this routine might just use the metadata from
>>>>>>>>>>>>>> "udiv00" instead.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Still, it's worth trying this:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> omega00_scale = omega00(0, :, {lonmin:lonmax}) ; subsets
>>>>>>>>>>>>>> omega00 *and* copies all metadata
>>>>>>>>>>>>>> omega00_scale = -200.0 * omega00_scale
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> plot = gsn_csm_pres_hgt_vector(wks, r00(0, :,
>>>>>>>>>>>>>> {lonmin:lonmax}), udiv00(0, :, {lonmin:lonmax}), omega00_scale, res )
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> If you continue to have problems with this script, could you
>>>>>>>>>>>>>> upload your data (if it's not too large) to our ftp:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ftp ftp.cgd.ucar.edu
>>>>>>>>>>>>>> anonymous
>>>>>>>>>>>>>> <use your email address for the password>
>>>>>>>>>>>>>> cd incoming
>>>>>>>>>>>>>> put uvwr.mean.JJAS.nc
>>>>>>>>>>>>>> put atanas_topo.nc
>>>>>>>>>>>>>> quit
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --Mary
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Tue, Apr 4, 2017 at 9:18 AM, Appo derbetini <
>>>>>>>>>>>>>> appopson4 at gmail.com> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Dear all,
>>>>>>>>>>>>>>> I am trying to overlay topography profil on a profil of wind
>>>>>>>>>>>>>>> and relative humidity.
>>>>>>>>>>>>>>> I don't want to interpolate topography to show some details.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Atached are script and datasets used for the plot.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> But I having errors.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> warning:LlDataPolygon: point 6.150009,0.000000 outside data
>>>>>>>>>>>>>>> domain
>>>>>>>>>>>>>>> warning:LlDataPolygon: point 19.983337,0.000000 outside data
>>>>>>>>>>>>>>> domain
>>>>>>>>>>>>>>> warning:LlDataLineTo: point 6.150009,0.000000 outside data
>>>>>>>>>>>>>>> domain
>>>>>>>>>>>>>>> warning:LlDataLineTo: point 19.983337,0.000000 outside data
>>>>>>>>>>>>>>> domain
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Any help will be appreciated.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Best regards.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>> 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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