[ncl-talk] Components of Divergence in NCL

[Lyndz]

Hi Sir Barry and Sir Dennis,

Thank you so much for your support. This is exactly what I needed!

Sincerely,

Lyndz


On Thu, May 2, 2019 at 10:37 PM Dennis Shea <shea at ucar.edu> wrote:

> The latest release: 6.6.2:
> *https://www.ncl.ucar.edu/current_release.shtml*
> <https://www.ncl.ucar.edu/current_release.shtml>
>
>     *shear_stretch_deform*
> <https://www.ncl.ucar.edu/Document/Functions/Contributed/shear_stretch_deform.shtml>
> - Using spherical harmonics, estimate the kinematic shear-deformation,
> stretch-deformation and total-deformation of a global horizontal
> (east-west) wind field.
>
>     *shear_stretch_deform_cfd*
> <https://www.ncl.ucar.edu/Document/Functions/Contributed/shear_stretch_deform_cfd.shtml>
> - Using centered-finite-differences, estimate the kinematic
> shear-deformation, stretch-deformation and total-deformation of a global or
> regional horizontal (east-west) wind field
> ~
>
>
> *https://www.ncl.ucar.edu/Applications/gradients.shtml  *
> <https://www.ncl.ucar.edu/Applications/gradients.shtml>
>
> See the* shear_stretch_deform_1.ncl *example.
>
> The codes are located in contributed.ncl
>
> You could look at these and, possibly, modify as needed.
>
> Good Luck
>
>
> On Thu, May 2, 2019 at 5:28 AM Barry Lynn <barry.h.lynn at gmail.com> wrote:
>
>> Hi:
>>
>> You need to have someone from the NCL "team" send you the fortran code,
>> and then you can edit it and use "WRAPIT" to obtain the terms you want.
>>
>> Barry
>>
>> On Thu, May 2, 2019 at 10:19 AM Lyndz <olagueralyndonmark429 at gmail.com>
>> wrote:
>>
>>> Dear NCL experts,
>>>
>>> I have been using the divergence (via spherical harmonics) routine in
>>> NCL:
>>> https://www.ncl.ucar.edu/Document/Functions/Built-in/uv2dvF-1.shtml
>>>
>>> Based on previous literatures, the divergence can be decomposed to its
>>> directional (diffluence) and speed (stretching) components (natural
>>> coordinates).
>>>
>>> https://www.weather.gov/media/wrh/online_publications/TAs/ta9139.pdf
>>>
>>> http://www.inscc.utah.edu/~steenburgh/classes/5110/lecture_notes/divergence+deformation.pdf
>>>
>>> [1] Is it possible to extract these terms in NCL?
>>> [2] If yes, I would like to ask for suggestions on how to do this in NCL.
>>>
>>> Sincerely,
>>>
>>> Lyndz
>>> _______________________________________________
>>> ncl-talk mailing list
>>> ncl-talk at ucar.edu
>>> List instructions, subscriber options, unsubscribe:
>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>
>>
>>
>> --
>> Barry H. Lynn, Ph.D
>> Senior Associate Scientist, Lecturer,
>> The Institute of the Earth Science,
>> The Hebrew University of Jerusalem,
>> Givat Ram, Jerusalem 91904, Israel
>> Tel: 972 547 231 170
>> Fax: (972)-25662581
>>
>> C.E.O, Weather It Is, LTD
>> Weather and Climate Focus
>> http://weather-it-is.com
>> Jerusalem, Israel
>> Local: 02 930 9525
>> Cell: 054 7 231 170
>> Int-IS: x972 2 930 9525
>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20190503/7e48b285/attachment.html>