[ncl-talk] Error while handling multiple WRF output files
swati shewale
shewaleswati16 at gmail.com
Tue Oct 10 00:14:11 MDT 2017
I understood gsn_panel(wks,(/plot0,plot1,plot2,plot3,plot4,plot5/),(/2,3/),pres)
will give 3 plot in one row and another 3 plot in second row as follows
plot0 plot1 plot2
plot3 plot4 plot5
but below resources
pres at gsnPanelLeft = 0.
pres at gsnPanelRight = 2./3
tells arrange plot as
plot0 plot1
plot2 plot3
plot4 plot4
so using which resource should I replace it
Also tell me about scale, that I want in extreme right
let me give you raw idea
WUCM = 3 plot (1st row =plot0, plot1, plot2)
NOWUCM = 3 plot (1st row =plot3, plot4, plot5)
WUCM-NOUCM = 3 plot (1st row =plot6, plot7, plot8)
title ---> WUCM NOUCM (WUCM-NOUCM)
plot0 plot1 plot2
vertical scale for WUCM and NOUCM vertical scale for
WUCM-NOUCM
plot3 plot4 plot5
plot6 plot7 plot8
On Tue, Oct 10, 2017 at 11:29 AM, swati shewale <shewaleswati16 at gmail.com>
wrote:
> but as We have mentioned that put first 6 plot in left side (
> pres at gsnPanelLeft = 0.
> pres at gsnPanelRight = 2./3)....so even if we write
> gsn_panel(wks,(/plot0,plot1,plot2,plot3,plot4,plot5/),(/2,3/),pres)
> as per my knowledge, it will arrange as follows
>
> plot0 plot1
> plot2 plot3
> plot4 plot5
>
> On Mon, Oct 9, 2017 at 11:41 PM, Mary Haley <haley at ucar.edu> wrote:
>
>> There's no resource that changes the ordering of the plots.
>>
>> To change the ordering of the plots, you simply need to rearrange them in
>> the call to gsn_panel.
>>
>> In order words, which ever plot you want in the upper left corner is the
>> one that should be first listed in the call to gsn_panel:
>>
>> gsn_panel(wks,(/plot0,plot1,plot2,plot3,plot4,plot5/),(/2,3/),pres)
>>
>> Right now, it's ordered:
>>
>> plot0 plot1 plot2
>> plot3 plot4 plot5
>>
>> If you want:
>>
>> plot3 plot4 plot5
>> plot0 plot1 plot2
>>
>>
>> then use:
>>
>> gsn_panel(wks,(/plot3,plot4,plot5,plot0,plot1,plot2/),(/2,3/),pres)
>>
>>
>>
>>
>> --Mary
>>
>>
>> On Mon, Oct 9, 2017 at 7:10 AM, swati shewale <shewaleswati16 at gmail.com>
>> wrote:
>>
>>> above attached plot is just to show the scale (rightmost) and left side
>>> titles that I want. I know the resource for left side is tiYAxisString /
>>> tiXAxisString. but unable to make plotting from top to bottom
>>>
>>> On Mon, Oct 9, 2017 at 6:25 PM, swati shewale <shewaleswati16 at gmail.com>
>>> wrote:
>>>
>>>> Dear Mary,
>>>>
>>>> The resources that you set in your demo script like left and right
>>>> space for panel (first panel of six plot vertically and another panel of
>>>> three plot vertically) as below
>>>>
>>>>
>>>> ;---Define space for leftmost column of plots, and their labelbar width
>>>> pres at gsnPanelLeft = 0.
>>>> pres at gsnPanelRight = 2./3
>>>> pres at pmLabelBarWidthF = 0.6
>>>> gsn_panel(wks,(/plot1,plot2,plot3,plot4,plot5,plot6/),(/3,2/),pres)
>>>>
>>>> ;---Define space for righmost column of plots, and their labelbar width
>>>> delta = 0.028
>>>> pres at gsnPanelLeft = pres at gsnPanelRight - delta ; Left plots
>>>> don't stretch all the way to
>>>>
>>>> ; 2/3, so move right plots a little to left.
>>>> pres at gsnPanelRight = 1.0 - delta
>>>> pres at pmLabelBarWidthF = pres at pmLabelBarWidthF * 0.5 ; half the
>>>> width of other labelbar
>>>> gsn_panel(wks,(/plot7,plot8,plot9/),(/3,1/),pres)
>>>>
>>>>
>>>>
>>>> If I wish to do plots from top to bottom instead of left to right,
>>>> along with both scales vertical (which should have position to the extreme
>>>> right).
>>>> I just did change in your script as follow
>>>>
>>>>
>>>>
>>>> ;---Set some panel resources common to both sets of plots
>>>> pres = True
>>>> pres at txFontHeightF = .010
>>>> pres at txString = " WUCM
>>>> NOUCM WUCM - NOUCM"
>>>> pres at gsnPanelLabelBar = True
>>>> pres at gsnMaximize = True
>>>> pres at pmLabelBarHeightF = 0.08
>>>> pres at lbLabelFontHeightF = 0.01
>>>> pres at gsnFrame = False ; Needed for paneling two sets of
>>>> plots on same frame.
>>>> pres at gsnPanelYWhiteSpacePercent = 4
>>>> pres at gsnPanelXWhiteSpacePercent = 4
>>>> pres at gsnPanelBoxes = True ; debugging tool
>>>>
>>>> ;---Define space for leftmost column of plots, and their labelbar width
>>>> pres at gsnPanelTop = 0.
>>>> pres at gsnPanelBottom = 2./3
>>>> pres at pmLabelBarWidthF = 0.6
>>>> gsn_panel(wks,(/plot0,plot1,plot2,plot3,plot4,plot5/),(/2,3/),pres)
>>>>
>>>> ;---Define space for righmost column of plots, and their labelbar width
>>>> delta = 0.005
>>>> pres at gsnPanelTop = pres at gsnPanelBottom - delta ; Left plots
>>>> don't stretch all the way to
>>>>
>>>> ; 2/3, so move right plots a little to left.
>>>> pres at gsnPanelBottom = 1.0 - delta
>>>> pres at pmLabelBarWidthF = pres at pmLabelBarWidthF * 0.5 ; half the
>>>> width of other labelbar
>>>> gsn_panel(wks,(/plot6,plot7,plot8/),(/3,1/),pres)
>>>>
>>>> txres = True
>>>> txres at txFontHeightF = 0.02
>>>> gsn_text_ndc(wks,"Temperature at 2m (degC) over Patna
>>>> city",0.5,0.92,txres)
>>>>
>>>> gives me error as
>>>>
>>>> (0) Warning: gsn_panel: attribute gsnPanelTop must be > 0.0 and <=
>>>> 1.0
>>>> (0) Defaulting to 1.
>>>> (0) Warning: gsn_panel: font height (0.01) of main string is too
>>>> large to fit in space provided. Either decrease font size or set
>>>> gsnPanelTop.
>>>> (0) Warning: gsn_panel: font height (0.02) of main string is too
>>>> large to fit in space provided. Either decrease font size or set
>>>> gsnPanelTop.
>>>> (0) Error: gsn_panel: attribute gsnPanelTop (0.661667) must be
>>>> greater
>>>> (0) than gsnPanelBottom (0.995).
>>>>
>>>> Also Please tell me, how should I fix scale vertically that to extreme
>>>> right. Actually I want plot from top to bottom because I want to provide
>>>> resources at left side (for example purpose attached a plot).
>>>>
>>>> I have model runs two types ....named WUCM and NOUCM
>>>> I want it like......first row contain 3 plot (WUCM)
>>>> second row contain 3 plot (NOWUCM)
>>>> above two rows have same scale
>>>> third row contain 3 plot of above difference
>>>> (WUCM - NOWUCM)
>>>> this one have different scale (as it is difference between WUCM - WUCM)
>>>>
>>>> I hope, I tried better to convey things I want.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Mon, Oct 9, 2017 at 11:30 AM, swati shewale <
>>>> shewaleswati16 at gmail.com> wrote:
>>>>
>>>>> Thanks a lot Mary for giving detail info along with demo script.
>>>>> I have mentioned special lat2d/lon2d attributes in gsn script (named
>>>>> convention in my a script is lat/lon). Anyway I will go through the script
>>>>> and link. Thanks again.
>>>>>
>>>>> On Sat, Oct 7, 2017 at 12:46 AM, Mary Haley <haley at ucar.edu> wrote:
>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> Thanks for providing clean scripts and explanations.
>>>>>>
>>>>>> 1. This warning is because when you use gsn_csm_contour_map to plot
>>>>>> curvilinear data, you must associate the lat/lon arrays with the data being
>>>>>> plotted. Otherwise, it does't know where on the map the data is supposed to
>>>>>> go.
>>>>>>
>>>>>> If you looked at the wrf_gsn_1.ncl and wrf_gsn_2.ncl scripts, you'll
>>>>>> see they are both using special lat2d/lon2d attributes to accomplish this:
>>>>>>
>>>>>> hgt = wrf_user_getvar(a,"HGT",it) ; Terrain elevation
>>>>>> hgt at lat2d = wrf_user_getvar(a,"XLAT",it) ; latitude/longitude
>>>>>> hgt at lon2d = wrf_user_getvar(a,"XLONG",it) ; required for plotting
>>>>>>
>>>>>> However, you would have to do this for every variable you plot.
>>>>>>
>>>>>> Instead, you can set these two resources before any calls to
>>>>>> gsn_csm_contour_map:
>>>>>>
>>>>>> res at sfXArray = lon
>>>>>> res at sfYArray = lat
>>>>>>
>>>>>>
>>>>>> 2.
>>>>>> I think the issue with cnConstFEnableFill
>>>>>> is that you are setting that resource *after* plots #0-5 have been
>>>>>> created. You need to make sure this line:
>>>>>>
>>>>>> res at cnConstFEnableFill= True ; allow constant values (1=sig) to
>>>>>> fill
>>>>>>
>>>>>>
>>>>>> is *before* all of your gsn_csm_contour_map calls.
>>>>>>
>>>>>> 3. In order to panel two sets of plots on the same page, you first
>>>>>> need to set:
>>>>>>
>>>>>> pnlres at gsnFrame = False
>>>>>>
>>>>>> so that the frame doesn't get advanced after each one. You will then
>>>>>> need to advance the frame yourself when done:
>>>>>>
>>>>>> frame(wks)
>>>>>>
>>>>>> The other issue with paneling two sets of plots, is that you need to
>>>>>> make sure they don't get drawn on top of each other. There are many
>>>>>> examples on our "Panels
>>>>>> <http://www.ncl.ucar.edu/Applications/panel.shtml>" example page
>>>>>> that show how to do various configurations of plots and labelbars. Here are
>>>>>> some that might help:
>>>>>>
>>>>>> http://www.ncl.ucar.edu/Applications/panel.shtml#ex12
>>>>>> http://www.ncl.ucar.edu/Applications/panel.shtml#ex22
>>>>>>
>>>>>> The important thing is that you need to set gsnPanelRight /
>>>>>> gsnPanelLeft to control which part of the frame each set of plots is drawn
>>>>>> in. Since the first set is 3 x 2 plots and the second set is 3 x 1 plots,
>>>>>> this means the 3 x 2 plots should take up 2/3 of the width, and the 3 x 1
>>>>>> plots will take up 1/3 of the width.
>>>>>>
>>>>>> See attached script which uses dummy data.
>>>>>>
>>>>>> --Mary
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Fri, Oct 6, 2017 at 2:04 AM, swati shewale <
>>>>>> shewaleswati16 at gmail.com> wrote:
>>>>>>
>>>>>>> Hello Mary,
>>>>>>>
>>>>>>> As per your suggestion I went through the links provided by you. I
>>>>>>> will explain one by one the issues I came across while doing plot using
>>>>>>> inbuilt wrf function as well as gsn function separately. I have attached
>>>>>>> scripts along with plot. the kind of titles (as well as left and side
>>>>>>> string), I want is reflected in gsn plot which am unable to do in wrf plot.
>>>>>>> I have given suitable names to scripts as well as plot for your
>>>>>>> convenience. Hope you wont get confuse.
>>>>>>>
>>>>>>> In first script (1_plot_using_wrf_function)
>>>>>>> 1. after mentioning re at cnConstFEnableFill = True, getting warning
>>>>>>> as
>>>>>>> warning:ContourPlotInitialize: scalar field is constant; no contour
>>>>>>> lines will appear; use cnConstFEnableFill to enable fill
>>>>>>>
>>>>>>> actually using wrf in built function gives nice plot but unable to
>>>>>>> make self explanatory (giving strings and titles) plot so thought of
>>>>>>> ploting using gsn function
>>>>>>>
>>>>>>> In second script (2_plot_using_gsn_function), issues are
>>>>>>>
>>>>>>> 1. even after mentioning lat/lon getting warning as follow
>>>>>>> (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) A valid latitude coordinate array should have a 'units'
>>>>>>> attribute equal to one of the following values:
>>>>>>> (0) 'degrees_north' 'degrees-north' 'degree_north' 'degrees
>>>>>>> north' 'degrees_N' 'Degrees_north' 'degree_N' 'degreeN' 'degreesN' 'deg
>>>>>>> north'
>>>>>>> (0) check_for_lon_coord: Warning: Data either does not contain a
>>>>>>> valid longitude coordinate array or doesn't contain one at all.
>>>>>>> (0) A valid longitude coordinate array should have a 'units'
>>>>>>> attribute equal to one of the following values:
>>>>>>> (0) 'degrees_east' 'degrees-east' 'degree_east' 'degrees
>>>>>>> east' 'degrees_E' 'Degrees_east' 'degree_E' 'degreeE' 'degreesE' 'deg east'
>>>>>>>
>>>>>>> 2. after mentioning re at cnConstFEnableFill = True, getting warning
>>>>>>> as
>>>>>>> warning:ContourPlotInitialize: scalar field is constant; no contour
>>>>>>> lines will appear; use cnConstFEnableFill to enable fill
>>>>>>>
>>>>>>> 3. I want all 9 plots on single panel with scales vertical, instead
>>>>>>> I am getting it on two different pages
>>>>>>>
>>>>>>> I think, I have to manage or add more resources in pres1/pres2 such
>>>>>>> as (*vpXF
>>>>>>> <https://www.ncl.ucar.edu/Document/Graphics/Resources/vp.shtml#vpXF>*
>>>>>>> and *vpYF
>>>>>>> <https://www.ncl.ucar.edu/Document/Graphics/Resources/vp.shtml#vpYF>*)
>>>>>>> (*vpHeightF
>>>>>>> <https://www.ncl.ucar.edu/Document/Graphics/Resources/vp.shtml#vpHeightF>*
>>>>>>> and *vpWidthF
>>>>>>> <https://www.ncl.ucar.edu/Document/Graphics/Resources/vp.shtml#vpWidthF>*)
>>>>>>> , so that I may get 9 plots on single panel. If you know any link which
>>>>>>> resembles like the plot i want,Please let me know. side by I will again go
>>>>>>> through links given by you.
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Sat, Sep 23, 2017 at 9:30 AM, swati shewale <
>>>>>>> shewaleswati16 at gmail.com> wrote:
>>>>>>>
>>>>>>>> Thank you so much Mary....surely I will go through the link
>>>>>>>> provided by you....If come across any problem, will let you know
>>>>>>>>
>>>>>>>> On Sat, Sep 23, 2017 at 12:36 AM, Mary Haley <haley at ucar.edu>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Please see this page:
>>>>>>>>>
>>>>>>>>> http://www.ncl.ucar.edu/Applications/wrfgsn.shtml
>>>>>>>>>
>>>>>>>>> and look at the first example (wrf_gsn_1.ncl and wrf_nogsn_1.ncl)
>>>>>>>>> and the second example (wrf_gsn_2.ncl).
>>>>>>>>>
>>>>>>>>> These show how to use gsn to plot data and it compares the plot
>>>>>>>>> with using WRF functions.
>>>>>>>>>
>>>>>>>>> In the wrf_gsn_1.ncl plot, you can see that the
>>>>>>>>> gsnLeft/RightString resources are being set automatically, because the data
>>>>>>>>> has a description and units attribute.
>>>>>>>>>
>>>>>>>>> Try this script as a start on your own data, and also look at
>>>>>>>>> wrf_gsn_2.ncl to see how to further customize your plot.
>>>>>>>>>
>>>>>>>>> If you are unable to get the plot to look as nice as you want,
>>>>>>>>> email ncl-talk at ucar.edu again with your new script and what you
>>>>>>>>> want it to look like, and we can help further.
>>>>>>>>>
>>>>>>>>> Good luck,
>>>>>>>>>
>>>>>>>>> --Mary
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Fri, Sep 22, 2017 at 3:21 AM, swati shewale <
>>>>>>>>> shewaleswati16 at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Thank you Mary... its wrf file, I just renamed it for my
>>>>>>>>>> convenience. Actually I am able to plot it using wrf function but unable to
>>>>>>>>>> put left/right/centre strings, as those are related to gsn functions. so to
>>>>>>>>>> overcome the difficulty of left/right/centre, I thought to make a plot
>>>>>>>>>> using gsn functions injstead of wrf functions. but inbuilt wrf functions
>>>>>>>>>> gives nicer plots than gsn one.
>>>>>>>>>>
>>>>>>>>>> On Fri, Sep 22, 2017 at 3:48 AM, Mary Haley <haley at ucar.edu>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> It's hard for somebody to simply look at a script to see if it's
>>>>>>>>>>> correct or not. I do see some errors, but even if I correct the errors, I
>>>>>>>>>>> can't be sure it's 100% correct without having access to your data.
>>>>>>>>>>>
>>>>>>>>>>> The problems are:
>>>>>>>>>>>
>>>>>>>>>>> [1]
>>>>>>>>>>>
>>>>>>>>>>> Your data file is called "patna_data.nc". You are using
>>>>>>>>>>> wrf_xxxx functions to plot this data. Since WRF-ARW output files are
>>>>>>>>>>> normally called something like "wrfout_d02_2005-08-29_00:00:00",
>>>>>>>>>>> I can't be sure that you are actually plotting WRF-ARW data. You can only
>>>>>>>>>>> use wrf_xxx plotting functions on WRF-ARW data.
>>>>>>>>>>>
>>>>>>>>>>> [2]
>>>>>>>>>>>
>>>>>>>>>>> You have:
>>>>>>>>>>>
>>>>>>>>>>> t = a->T2(0:7,:,:)
>>>>>>>>>>> ter = dim_avg_n( ter1, 0 )
>>>>>>>>>>> ter = ter - 273
>>>>>>>>>>>
>>>>>>>>>>> I don't know what your objective, so I don't know if the above
>>>>>>>>>>> is correct. However, you are calling "dim_avg_n" on "ter1" which doesn't
>>>>>>>>>>> exist. Did you mean:
>>>>>>>>>>>
>>>>>>>>>>> ter = dim_avg_n( t, 0 )
>>>>>>>>>>>
>>>>>>>>>>> The above will take an average of the first 8 times teps of your
>>>>>>>>>>> data, assuming that the leftmost dimension of T2 represents time.
>>>>>>>>>>>
>>>>>>>>>>> Further, you should use the _Wrap version of this function, so
>>>>>>>>>>> metadata is maintained:
>>>>>>>>>>>
>>>>>>>>>>> ter = dim_avg_n_Wrap( t, 0 )
>>>>>>>>>>>
>>>>>>>>>>> [3]
>>>>>>>>>>>
>>>>>>>>>>> You have:
>>>>>>>>>>>
>>>>>>>>>>> ter = ter - 273
>>>>>>>>>>>
>>>>>>>>>>> Since you are changing the units, you should update the "units"
>>>>>>>>>>> attribute to something like this:
>>>>>>>>>>>
>>>>>>>>>>> ter at units = "degC"
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> The rest of the script looks okay, but again, the wrf_contour
>>>>>>>>>>> and wrf_map_overlays procedures will only work if you are actually plotting
>>>>>>>>>>> WRF-ARW data.
>>>>>>>>>>>
>>>>>>>>>>> --Mary
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Thu, Sep 7, 2017 at 10:02 PM, swati shewale <
>>>>>>>>>>> shewaleswati16 at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Thank you. I will try with your script. yesterday I tried it
>>>>>>>>>>>> with below script. Please have a look and let me know, whether it is
>>>>>>>>>>>> correct or not.
>>>>>>>>>>>>
>>>>>>>>>>>> On Fri, Sep 8, 2017 at 12:54 AM, Mary Haley <haley at ucar.edu>
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> If I understand you correctly, then you need to reshape your X
>>>>>>>>>>>>> array so that it is NTIM x 8 x NLAT x NLON, and then you can average across
>>>>>>>>>>>>> the second dimension from the left.
>>>>>>>>>>>>>
>>>>>>>>>>>>> I've attached a modified version of your script, which is
>>>>>>>>>>>>> UNTESTED. You may need to modify it to do the right thing with regard to
>>>>>>>>>>>>> copying over the required metadata. I did this a little with copy_VarAtts,
>>>>>>>>>>>>> and copy_coords.
>>>>>>>>>>>>>
>>>>>>>>>>>>> --Mary
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Thu, Sep 7, 2017 at 3:42 AM, swati shewale <
>>>>>>>>>>>>> shewaleswati16 at gmail.com> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Hiii,
>>>>>>>>>>>>>> using ncrcat I have single file containing 24 time step
>>>>>>>>>>>>>> (3hrly, 3 days). Now I want to plot temperature variable (average for each
>>>>>>>>>>>>>> day, spatial, panel plot). I am unable to take out time step for 1st day
>>>>>>>>>>>>>> (0:7) and then do average of it...then second day (8:15) ...likewise for
>>>>>>>>>>>>>> third day (16:23). I wrote a script, in that it takes average over all time
>>>>>>>>>>>>>> steps. what changes should I make so that I can get average over specific
>>>>>>>>>>>>>> time step? attached herewith script.
>>>>>>>>>>>>>> summary of variable temperature is as follow.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Variable: X
>>>>>>>>>>>>>> Type: float
>>>>>>>>>>>>>> Total Size: 5658552 bytes
>>>>>>>>>>>>>> 1414638 values
>>>>>>>>>>>>>> Number of Dimensions: 3
>>>>>>>>>>>>>> Dimensions and sizes: [Time | 23] x [south_north | 201] x
>>>>>>>>>>>>>> [west_east | 306]
>>>>>>>>>>>>>> Coordinates:
>>>>>>>>>>>>>> Number Of Attributes: 6
>>>>>>>>>>>>>> FieldType : 104
>>>>>>>>>>>>>> MemoryOrder : XY
>>>>>>>>>>>>>> description : TEMP at 2 M
>>>>>>>>>>>>>> units : K
>>>>>>>>>>>>>> stagger :
>>>>>>>>>>>>>> coordinates : XLONG XLAT XTIME
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Thu, Sep 7, 2017 at 3:04 PM, swati shewale <
>>>>>>>>>>>>>> shewaleswati16 at gmail.com> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Thank you. I will try with it.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On Wed, Sep 6, 2017 at 8:39 PM, Mary Haley <haley at ucar.edu>
>>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> The error message is telling you that there's something
>>>>>>>>>>>>>>>> wrong with argument 0 passed to wrf_contour. Argument 0 refers to the
>>>>>>>>>>>>>>>> first argument in the list, which is "a(itime)" in this case.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> The issue is that when you use addfiles to open a series of
>>>>>>>>>>>>>>>> files, you need to use square brackets, [], to access a single file, and
>>>>>>>>>>>>>>>> not curved brackets, (). This is because addfiles returns a "List" object,
>>>>>>>>>>>>>>>> and lists in NCL need to be access with square brackets.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> You have:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> contour = wrf_contour(a(itime),wks,t,t_res)
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> and this should be:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> contour = wrf_contour(a[itime],wks,t,t_res)
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> --Mary
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On Mon, Sep 4, 2017 at 4:40 AM, swati shewale <
>>>>>>>>>>>>>>>> shewaleswati16 at gmail.com> wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Hiiii
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> I want to do panel plotting using WRF output. I have total
>>>>>>>>>>>>>>>>> 8 files, each contains single time step (one day, 3 hrly datafiles so total
>>>>>>>>>>>>>>>>> 8 files). out of eight times I want to plot 6 time step (panel plot) for
>>>>>>>>>>>>>>>>> variable slp and temperature.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> It shows below error.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> fatal:Argument type mismatch on argument (0) of
>>>>>>>>>>>>>>>>> (wrf_contour) can not coerce
>>>>>>>>>>>>>>>>> fatal:["Execute.c":8567]:Execute: Error occurred at or
>>>>>>>>>>>>>>>>> near line 44 in file temp.ncl
>>>>>>>>>>>>>>>>> (0) Error: gsn_panel: all of the plots passed to
>>>>>>>>>>>>>>>>> gsn_panel appear to be invalid
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Attached herewith script.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Thank you in advance. Any help will be appreciated
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>>>> 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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