[ncl-talk] Vertical Feature Mask (VFM) diagram using CALIPSO

[Dennis Shea]

re: "exactly for latitude between 32 N and  38 N, please?"

The words "exactly" and "between" makes this unclear to me.

Do you mean "exactly" 36N?  (32N + 36N)/2 = 36N

Do you mean all latitudes "between" 32N and 36N?

I am not very familiar with CALIPSO data grids.

You may have to interpolate the data to some standard grid which includes
the latitude:

One dimensional coordinate variable:

NCL's coordinate subscripting:   {...}
  x = data(*{*36*}*,:)   ;  all data at or hear 36N

To find indices (subscripts) corresponding to specific 'targets

One-dimensional coordinates

*ind* <https://www.ncl.ucar.edu/Document/Functions/Built-in/ind.shtml>

   il = ind(lat.ge.32 .and. lat.le.36)    ; lat(lat)

Two-dimensional coordinates
*region_ind*
<https://www.ncl.ucar.edu/Document/Functions/Contributed/region_ind.shtml>
*getind_latlon2d*
<https://www.ncl.ucar.edu/Document/Functions/Contributed/region_ind.shtml>

=============
THe HDF EOS group has many examples using Matlab, NCL, Python and IDL
*    http://hdfeos.org/zoo/* <http://hdfeos.org/zoo/>
perhaps, one of the NCL examples could help.


On Wed, Nov 23, 2022 at 2:12 AM Setareh Rahimi <setareh.rahimi at gmail.com>
wrote:

> Dear Dennis,
> I could find the script I was looking for (
> http://hdfeos.org/zoo/MORE/LaRC/CALIPSO/CAL_LID_L2_VFM-Standard-V4-10.2009-07-13T08-27-14ZD.hdf.v.ncl
> ) under this page: http://hdfeos.org/zoo/LaRC_CALIPSO_ncl.php.
>
> I need to plot the following latitude: 32 N - 38 N.
>
> I should plots CALIPSO data for different months for my study area.
> However, as CALIPSO overpasses are not the same for a certain area, after
> setting the below command lines in the script I got plots for another
> latitude.
>
> lat = hdf_file->Latitude(1650:1500,0)
> profile = fcf(1650:1500,1165:5514)
>
> So how can I have plots exactly for latitude between 32 N and  38 N,
> please?
>
> Many thanks in advance,
> Best wishes,
>
>
>
>
>
> On Fri, Nov 18, 2022 at 3:42 AM Dennis Shea <shea at ucar.edu> wrote:
>
>> re: "... need to know how to indicate the names of available particles in
>> the atmosphere (like dust, Black carbon,...) using NCL"
>> ===
>> I must admit, I doin't understand "names of available particles"
>>
>> D
>>
>>
>> On Wed, Nov 16, 2022 at 11:04 PM Setareh Rahimi <setareh.rahimi at gmail.com>
>> wrote:
>>
>>> Dear Dennis,
>>> Thank you for your advice. I already visited this section of NCL page,
>>> but I need to know how to indicate the names of available particles in the
>>> atmosphere (like dust, Black carbon,...) using NCL.
>>> I appreciate any suggestions.
>>> Best wishes,
>>>
>>> On Wed, Nov 16, 2022 at 9:44 PM Dennis Shea <shea at ucar.edu> wrote:
>>>
>>>> To me, it looks like NCL was used to generate the plot.
>>>>
>>>> *https://www.ncl.ucar.edu/Applications/*
>>>> <https://www.ncl.ucar.edu/Applications/>
>>>>
>>>> Under Datasets: click* Calipso*
>>>>
>>>> These types of plots can be 'complicated'
>>>>
>>>> Maybe you can contact the person/group that created the VFM.png plot
>>>>
>>>>
>>>>  ..... Good Luck
>>>>
>>>> On Wed, Nov 16, 2022 at 9:37 AM Setareh Rahimi via ncl-talk <
>>>> ncl-talk at mailman.ucar.edu> wrote:
>>>>
>>>>>
>>>>> Dear all NCL users,
>>>>>
>>>>> I want to plot a Vertical Feature Mask (VFM) diagram using CALIPSO
>>>>> data, like the attached one. But I am not familiar with the type of
>>>>> data. So please advise me in this regard.
>>>>>
>>>>> Thank you so much for your attention and participation.
>>>>> Best wishes,
>>>>> --
>>>>> S.Rahimi
>>>>>
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
>>>>> ncl-talk at mailman.ucar.edu
>>>>> List instructions, subscriber options, unsubscribe:
>>>>> https://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>
>>>>
>>>
>>> --
>>> S.Rahimi
>>>
>>>
>
> --
> S.Rahimi
>
>
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