[ncl-talk] Data required for wave no frequency plot (example 10)

[Dr. Suman Maity]

Hi Dennis
Thanks a lot. I have couple of queries regarding wavenumber-freqency plots
using "*mjo_wavenum_freq_season*" which are mentioned below:
1. I saw the function calculates wavenumber and frequency. As per my
knowledge, positive frequency correspnds to easward propogating waves while
negative frequency associated with westward waves. But what about the
wavenumber? I mean what the negative wavenumber physically mean? will you
please comment?
2. Both these functions "*mjo_wavenum_freq_season*" and "
*mjo_wavenum_freq_season_plot*" are only applicable for zonal waves? I am
interested in the meridional waves. I mean I need the wavenumber-freqency
spectra in meriodional direction. How to implement that? Will you guide me?
Please reply.

Best
Suman
++++++++++++++++++++++++++++++++++++++++++
Dr. Suman Maity
Research Associate
School of Atmospheric Science
Sun Yat-sen University, Zhuhai campus,Tangjiawan Town
Zhuhai, Guangdong, Postcode-519082,China.
Phone:+86-13543861045 (China), +91-9732636778 (India)
skype: reach2suman
https://www.researchgate.net/profile/Suman_Maity
++++++++++++++++++++++++++++++++++++++++++


On Wed, Sep 16, 2020 at 3:37 AM Dennis Shea <shea at ucar.edu> wrote:

> It is there now. It is not compressed:  approx 799MB
>
> *uwnd.day.850.anomalies.1980-2005.nc
> <http://uwnd.day.850.anomalies.1980-2005.nc>*
>
> Good luck
>
> On Tue, Sep 15, 2020 at 2:10 AM Dr. Suman Maity <suman.buie at gmail.com>
> wrote:
>
>> Dear Dennis
>> Thanks a lot for your reply. But that directory doesn't contain "
>> *uwnd.day.850.anomalies.1980-**2005.nc <http://2005.nc>*". Since The
>> example 10 (
>> http://www.ncl.ucar.edu/Applications/Scripts/mjoclivar_10.ncl) uses "
>> *uwnd.day.850.anomalies.1980-**2005.nc <http://2005.nc>*" therefore it
>> would be helpful if you provide that data.
>> Thanks once again.
>>
>> Best
>> Suman
>> ++++++++++++++++++++++++++++++++++++++++++
>> Dr. Suman Maity
>> Research Associate
>> School of Atmospheric Science
>> Sun Yat-sen University, Zhuhai campus,Tangjiawan Town
>> Zhuhai, Guangdong, Postcode-519082,China.
>> Phone:+86-13543861045 (China), +91-9732636778 (India)
>> skype: reach2suman
>> https://www.researchgate.net/profile/Suman_Maity
>> ++++++++++++++++++++++++++++++++++++++++++
>>
>>
>> On Tue, Sep 15, 2020 at 3:32 AM Dennis Shea <shea at ucar.edu> wrote:
>>
>>> ftp ftp.cgd.ucar.edu
>>> anonymous
>>> your_email
>>> cd pub/shea
>>> get olr.day.anomalies.1980-2005.nc.gz
>>> get uwnd.day.200.anomalies.1980-2005.nc.gz
>>> exit
>>>
>>>
>>> That directory [* /ftp/pub/shea/* ]also has other files used in some
>>> examples
>>>
>>>
>>>   74708150 Aug 29 12:13
>>> b40.20th.track1.2deg.001.cam2.h0.PSL.1850-01_cat_2005-12.nc.gz
>>>   14503022 Aug 24 07:11 OLR.12hr_2yrs.wheeler.nc.gz
>>>  673870798 Aug 24 07:11 olr.day.anomalies.1980-2005.nc.gz
>>>  133593734 Aug 24 07:11 OMEGA.2001-2005.nc.gz
>>>        34 Aug 24 07:11 README
>>>   22455957 Aug 24 07:11 slp.mon.mean.nc.gz
>>>  451601700 Sep  8 21:17 TRMM_3B43V7.199801-201404.pcp.nc
>>>  383457631 Aug 24 07:11 u.200.1999-2001.nc.gz
>>>  732075565 Aug 24 07:11 uwnd.day.200.anomalies.1980-2005.nc.gz
>>>
>>> If you want all the files, perhaps
>>>
>>> mget *
>>>
>>> will work.
>>>
>>> Good luck
>>>
>>> On Mon, Sep 14, 2020 at 1:47 PM Dr. Suman Maity via ncl-talk <
>>> ncl-talk at mailman.ucar.edu> wrote:
>>>
>>>> Dear all
>>>> I need the following datasets used in the example 10 for wave no
>>>> frequency plot (
>>>> http://www.ncl.ucar.edu/Applications/Scripts/mjoclivar_10.ncl):
>>>> 1. uwnd.day.850.anomalies.1980-2005.nc
>>>> 2. olr.day.anomalies.1980-2005.nc
>>>> It will help me to understand the example and consequently to customize
>>>> it.
>>>> Thanking you in advance.
>>>>
>>>> Best
>>>> Suman
>>>> ++++++++++++++++++++++++++++++++++++++++++
>>>> Dr. Suman Maity
>>>> Research Associate
>>>> School of Atmospheric Science
>>>> Sun Yat-sen University, Zhuhai campus,Tangjiawan Town
>>>> Zhuhai, Guangdong, Postcode-519082,China.
>>>> Phone:+86-13543861045 (China), +91-9732636778 (India)
>>>> skype: reach2suman
>>>> https://www.researchgate.net/profile/Suman_Maity
>>>> ++++++++++++++++++++++++++++++++++++++++++
>>>> _______________________________________________
>>>> ncl-talk mailing list
>>>> ncl-talk at mailman.ucar.edu
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>>>
>>>
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