[ncl-talk] NCL Query

[Kyle Griffin]

Please remember to use reply-all so everyone on the list can see your
comments.

I sent you a link for example 8, which contains some information about
setting tick marks. Please read this. Also, a simple search for tick marks
turns up this page: http://ncl.ucar.edu/Applications/tickmarks.shtml -
everything you need to know about setting the major ticks, minor ticks, and
the labels for each is here. Good luck!


Kyle

----------------------------------------
Kyle S. Griffin
Department of Atmospheric and Oceanic Sciences
University of Wisconsin - Madison
Room 1421
1225 W Dayton St, Madison, WI 53706
Email: ksgriffin2 at wisc.edu

On Wed, Sep 10, 2014 at 9:36 AM, Kunal Bali <kunal.bali9 at gmail.com> wrote:

> Dear Kyle
>
> Thank You so much for replying. Yes, its my mistake that i was mentioning
> 0 hpa actually i wanted to pointed out 10 hpa pressure level.
>
> And what i wanted to say is that as you see in the figure we can see
> directly where is 200 hpa level or 600 hpa level but after 200 hpa level (
> as you said lot of data above 200 hpa, you are right ) but I can not see
> where exactly 50 hpa levelt is ??  Are you getting my point. I want to
> point out each and every pressure levels in the data so that i can see
> where is 50 hpa and where is 20 hpa level in the figure.
>
> Hope you will understand my query
>
>
>
> Kunal Bali
> Research Scholar
> Radio & Atmospheric Science Division
> CSIR - National Physical Laboratory
> New Delhi - 110012
>
>
>
>
>
>
> On Wed, Sep 10, 2014 at 7:43 PM, Kyle Griffin <ksgriffin2 at wisc.edu> wrote:
>
>> Kunal,
>>
>> PLEASE look at your graph and understand what it is saying. First, your
>> plot goes far above 200 hPa. There is a LOT of data above 200 hPa. This
>> appears to be plotting all available data you have, which appears to be up
>> to or at least near 0 hPa based on the tick marks (perhaps it is up to 10
>> hPa?). Also, there is no such level as 0 hPa in the atmosphere, so be
>> careful using this for anything meaningful.
>>
>> This ENTIRE PAGE of examples (see link below) shows you how to make the
>> plot you are working on. It may have been sent to you in your previous
>> posts - if not, it is very easily searchable if you type "pressure latitude
>> plot" in the wonderful search box on the website. It is important to look
>> at ALL of the examples, as most of the common functionality with these
>> plots are presented in some combination of the examples.
>>
>> http://ncl.ucar.edu/Applications/height_lat.shtml
>>
>> In this case, please refer to example 8. However, I don't think this will
>> help you unless your data actually extend to 0 hPa (which I think is
>> unlikely), as you can't plot data that you don't have. It might be a good
>> idea to use printVarSummary to figure out the name of your vertical
>> coordinate variable and then print(name_of_that_variable) so you can see
>> how far it extends. I also think you might run into problems trying to have
>> a logarithmic plot include a zero value, which would need to be infinitely
>> far away from all other numbers. So, overall, be careful and you might need
>> to accept that this is potentially all the data you can plot.
>>
>>
>> Kyle
>>
>> ----------------------------------------
>> Kyle S. Griffin
>> Department of Atmospheric and Oceanic Sciences
>> University of Wisconsin - Madison
>> Room 1421
>> 1225 W Dayton St, Madison, WI 53706
>> Email: ksgriffin2 at wisc.edu
>>
>> On Wed, Sep 10, 2014 at 7:24 AM, Kunal Bali <kunal.bali9 at gmail.com>
>> wrote:
>>
>>> Dear NCL
>>>
>>> I have plotted the pressure vs latitude graph.
>>> But in that pressure levels values is not coming from 0 to 1000. its
>>> coming from 200 to 1000 hpa. I need to display pressure levels from 0 to
>>> 1000.
>>>
>>> So how to correct the script. I used the script for this plot given below
>>>
>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
>>>
>>> begin
>>>  in  = addfile("14-01.nc","r")
>>>   ts  = in->CH4_VMR_A
>>> zave = dim_avg_Wrap(ts)
>>>  wks  = gsn_open_wks("pdf","zonal")
>>>   gsn_define_colormap(wks,"BlAqGrYeOrRe")
>>>   res            = True
>>>   res at cnFillOn = True
>>>   res at mpFillOn = True
>>>   res at mpFillColors = (/ -1,-1,103,-1/)
>>> ;  res at mpMinLatF = -70.
>>> ;  res at mpMaxLatF = 70.
>>>
>>>   res at tiMainString = " Is it OK "
>>>
>>>   res at trYReverse = True                            ; reverse Y axis
>>>   res at trXReverse = True                            ; reverse X axis
>>>
>>>   plot=gsn_csm_contour(wks,zave(:,:),res)
>>> ;***********************************************
>>> end
>>>
>>>
>>> Kunal Bali
>>> Research Scholar
>>> Radio & Atmospheric Science Division
>>> CSIR - National Physical Laboratory
>>> New Delhi - 110012
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> ncl-talk mailing list
>>> List instructions, subscriber options, unsubscribe:
>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>
>>>
>>
>
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