[ncl-talk] Function for computing u, v components of the divergence

[Dennis Shea]

Sorry, there is no NCL function to derive the divergent components of the
wind from the divergence.
As you note, only for global grids.

*https://www.ncl.ucar.edu/Applications/wind.shtml*
<https://www.ncl.ucar.edu/Applications/wind.shtml>

On Thu, Oct 1, 2020 at 8:26 AM Barry Lynn via ncl-talk <
ncl-talk at mailman.ucar.edu> wrote:

> Hello:
>
> If you are using WRF output, why not just use the u,v fields from WRF
> itself?
>
> Perhaps I don't understand your question.
>
> Barry
>
> On Thu, Oct 1, 2020 at 4:44 PM Pei, Lisi via ncl-talk <
> ncl-talk at mailman.ucar.edu> wrote:
>
>> Hi there,
>>
>> As the function uv2dv_cfd can give the divergence field for a regional
>> data at fixed grid, I am wondering if there is a function similar to dv2uvf
>> (this function only works for global grids) that can generate the u, and v
>> component for the divergence derived from uv2dv_cfd. There seem to be a lot
>> built-in function similar to dv2uvf (e.g. *dv2uvF_Wrap*
>> <https://www.ncl.ucar.edu/Document/Functions/Contributed/dv2uvF_Wrap.shtml>
>> , *dv2uvG*
>> <https://www.ncl.ucar.edu/Document/Functions/Built-in/dv2uvG-1.shtml>,
>> *dv2uvg*
>> <https://www.ncl.ucar.edu/Document/Functions/Built-in/dv2uvg.shtml>, *uv2dvF
>> <https://www.ncl.ucar.edu/Document/Functions/Built-in/uv2dvF-1.shtml>*)
>> but none of them would suite a regional grid such as WRF outputs. If I am
>> not missing anything, would anybody be able to share an efficient way to
>> calculate the u and v component of a 2-D divergence field at pressure level
>> by NCL?
>>
>> Thanks for any help in advance.
>>
>> Best,
>> Lisi
>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at mailman.ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> https://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 mailman.ucar.edu
> List instructions, subscriber options, unsubscribe:
> https://mailman.ucar.edu/mailman/listinfo/ncl-talk
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20201005/f7beee83/attachment.html>