Re: space-time spectra over a specified domain

Thank you Sir ... thanks for your support and appreciation.

Regards,

Bidyut Bikash Goswami
Research Fellow
Indian Institute of Tropical Meteorology
Dr. Homi Bhabha Road
Pashan
Pune-411008
Telephone:+91 20 25904226 (O)

----- Original Message -----
| From: "Dennis Shea" <shea@ucar.edu>
| To: "Bidyut Bikash Goswami" <bidyut@tropmet.res.in>
| Cc: ncl-talk@ucar.edu
| Sent: Thursday, February 9, 2012 12:21:31 AM
| Subject: Re: space-time spectra over a specified domain
| Hello,
|
| Very nice scientific objective ....
|
| BUT ...
|
| This is way above and beyond what support of a software tool
| is supposed to entail. I am not paid by the NCL project.
| I do this as a 'volunteer'.
|
| You are 'new to NCL' so that would make it even more time consuming,
| since I would have to discuss many NCL features. In practice,
| I would end up doing the programming. Some MJO diagnostics are
| zonally oriented. To to this meridionally would involve a complete
| rewrite.
|
| Very sorry, but I just don't have the time.
|
| Good luck on your project.
|
|
| On 2/8/12 11:29 AM, Bidyut Bikash Goswami wrote:
| > Thank you Sir.
| >
| > But my actual intention was to do a north-south space-time spectra.
| > That is the reason why I wanted to know how to do it over a bounded
| > domain, because unlike MJOs, the northward propagating Indian summer
| > monsoon ISOs are seen only over the Indian region.
| >
| > Can you please leave your suggestions in this regard ... how to do
| > it for north-south spectra.
| >
| > I have gone through the thread
| > http://www.ncl.ucar.edu/Support/talk_archives/2010/0071.html, but if
| > possible can you kindly be a little more elaborative ... as I am
| > still a newbie in NCL.
| >
| > Thanks and Regards.
| >
| > Bidyut Bikash Goswami
| > Research Fellow
| > Indian Institute of Tropical Meteorology
| > Dr. Homi Bhabha Road
| > Pashan
| > Pune-411008
| > Telephone:+91 20 25904226 (O)
| >
| > ----- Original Message -----
| > | From: "Dennis Shea"<shea@ucar.edu>
| > | To: "Bidyut Bikash Goswami"<bidyut@tropmet.res.in>
| > | Cc: ncl-talk@ucar.edu
| > | Sent: Wednesday, February 8, 2012 11:10:37 PM
| > | Subject: Re: space-time spectra over a specified domain
| > | This and other space-time functions in this package
| > | assume the data are periodic in longitude. I suggest
| > | altering the data that are input to just the region of interest.
| > |
| > | latS = -10. ; latitude band
| > | latN = 10. ; symmetric about equator
| > |
| > | lonL = 30. ; longitude segment
| > | lonR = 120.
| > |
| > | Then later,
| > |
| > | x = dim_avg_n_Wrap( X, 1 ) ; (time,lon)
| > | printVarSummary(x)
| > |
| > | ;************************************************************
| > | ; Create necessary regional data
| > | ; (a) Remove zonal (longitudinal) means at each time
| > | ; (b) Set all data outside chosen longitudes to 0.0
| > | ; (c) Taper the data in the region
| > | ;************************************************************
| > | xZon = dim_avg_n_Wrap( x, 1 )
| > | printVarSummary(xZon) ; xZon(time)
| > |
| > | x = x - conform(x, xZon, 0) ; remove zonal mean at each time step
| > | printVarSummary(x) ; [time | 9497] x [lon | 144]
| > |
| > | LON = conform(x, x&lon, 1)
| > | x = where(LON.lt.lonL .or. LON.gt.lonR, 0.0, x)
| > |
| > | x(:,{lonL:lonR}) = taper(x(:,{lonL:lonR}), 0.1, 0)
| > |
| > |
| > | On 2/7/12 10:56 PM, Bidyut Bikash Goswami wrote:
| > |> Hi,
| > |>
| > |> I want to plot the space-time spectra over a specified
| > |> domain(say
| > |> indian region) using
| > |> http://www.ncl.ucar.edu/Document/Functions/Diagnostics/mjo_wavenum_freq_season.shtml
| > |> (using the script mjoclivar_10.ncl).
| > |>
| > |> In order to do this, please suggest me regarding the required
| > |> modifications needed to be done in the file
| > |> http://www.ncl.ucar.edu/Document/Functions/Diagnostics/diagnostics_cam.shtml.
| > |> Please specify the places where I need to put the longitude
| > |> boundaries, in diagnostics_cam file.
| > |>
| > |> Regards,
| > |>
| > |> Bidyut Bikash Goswami
| > |> Research Fellow
| > |> Indian Institute of Tropical Meteorology
| > |> Dr. Homi Bhabha Road
| > |> Pashan
| > |> Pune-411008
| > |> Telephone:+91 20 25904226 (O)
| > |>
| > |> _______________________________________________
| > |> ncl-talk mailing list
| > |> List instructions, subscriber options, unsubscribe:
| > |> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
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Received on Wed Feb 8 23:04:28 2012