[ncl-talk] Fourier decomposition

Lyndz olagueralyndonmark429 at gmail.com
Fri Feb 28 07:10:51 MST 2020


Hi Jalal and Sir Dennis,

Thank you so much for this. I will study this in detail.

Sincerely,
Lyndz

On Fri, Feb 28, 2020 at 9:11 PM Dennis Shea <shea at ucar.edu> wrote:

>
> [1] Spherical harmonic analysis
>      Gaussian grid: (*shagC
> <https://www.ncl.ucar.edu/Document/Functions/Built-in/shagC-1.shtml>)* and
> synthesis (*shsgC*
> <https://www.ncl.ucar.edu/Document/Functions/Built-in/shsgC-1.shtml>)
>      Equally spaced grid: (*shaeC)*
> <https://www.ncl.ucar.edu/Document/Functions/Built-in/shseC-1.shtml> and
> synthesis (*shseC*
> <https://www.ncl.ucar.edu/Document/Functions/Built-in/shseC-1.shtml>)
>
> [2]  *ezfftf
> <https://www.ncl.ucar.edu/Document/Functions/Built-in/ezfftf.shtml>*and
> *ezfftb*
> <https://www.ncl.ucar.edu/Document/Functions/Built-in/ezfftb.shtml>
> ================================
> Also:* fourier_info*
> <https://www.ncl.ucar.edu/Document/Functions/Built-in/fourier_info.shtml>
> may be of interest
>
> See attached
>
> Thae data file is distributed with NCL
> https://www.ncl.ucar.edu/Applications/Data/
>
> On Fri, Feb 28, 2020 at 2:07 AM Md. Jalal Uddin via ncl-talk <
> ncl-talk at ucar.edu> wrote:
>
>> I think the following link would help you.
>>
>> https://www.ncl.ucar.edu/Document/Functions/Built-in/ezfftb.shtml
>>
>> ——
>> Jalal
>>
>>
>> ৯:৪৯ AM এ শুক্র, ২৮ ফেব, ২০২০ এ Lyndz via ncl-talk <ncl-talk at ucar.edu>
>> লিখেছেন:
>>
>>> Dear NCL-experts,
>>>
>>> I am wondering if there is an example application of Fourier
>>> decomposition in NCL.
>>>
>>> I would like to apply this on the stream function (netcdf) and extract
>>> the waves 0-1(base flow) and waves 2-23.
>>>
>>> I'll appreciate any suggestions on how I can do this in NCL.
>>>
>>> Sincerely,
>>> Lyndz
>>> _______________________________________________
>>> ncl-talk mailing list
>>> ncl-talk at ucar.edu
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>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>> --
>> *Md. Jalal Uddin*
>> M.Sc. in Applied Meteorology
>> Nanjing University of Information, Science and Technology, China.
>> B.Sc. in Disaster Management (Hons.)
>> Patuakhali Science and Technology University, Bangladesh.
>> Cell: +8613260859092, +8801792052662
>> Web: www.dmjalal90.weebly.com
>> Researchgate: https://www.researchgate.net/profile/Md_Uddin125
>> _______________________________________________
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>
>
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