Re: [ferret_users] fill ffta with respect to period

[Abhisek Chatterjee <abhi.iitkgp@xxxxxxxxxxx>]

Dear Nuncio,

>why dont you try saving period and respective amplitudes at each depth. You >can then  do your plotting eaisly.  This may not be the best method though.
>nuncio

In fact I thought of it, but how to do it ?

Abhisek Chatterjee
POD, NIO
Dona Paula
Goa-403004

Ph.N- +91-9371679339


--- On Wed, 27/4/11, nuncio@xxxxxxxxx <nuncio@xxxxxxxxx> wrote:

From: nuncio@xxxxxxxxx <nuncio@xxxxxxxxx>
Subject: Re: [ferret_users] fill ffta with respect to period
To: "Abhisek Chatterjee" <abhi.iitkgp@xxxxxxxxxxx>
Date: Wednesday, 27 April, 2011, 3:05 PM

why dont you try saving period and respective amplitudes at each depth. You can then  do your plotting eaisly.  This may not be the best method though.
nuncio

National Centre for Antarctic and Ocean Research
Headland Sada, Vasco Da Gama
Goa, 403804
India.
Ph: Cell-91 9890357423
    off- 91 832 2525428

----- Original Message -----
From: "Abhisek Chatterjee" <abhi.iitkgp@xxxxxxxxxxx>
To: nuncio@xxxxxxxxx
Cc: "Ferret users" <oar.pmel.ferret_users@xxxxxxxx>
Sent: Wednesday, April 27, 2011 2:49:29 PM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi
Subject: Re: [ferret_users] fill ffta with respect to period

Dear Nuncio,

>Is this what you are looking for?

>http://ferret.pmel.noaa.gov/FERRET_17sep07/Demos/ef_fft_demo/ef_fft_demo.html
>nuncio


this script only creates period as variable, then someone can do a line plot of "ffta vs per" for a particular depth. But "/vs " command is not applicable, when you try to use fill option.

Please let me know if this script can be modified to suit the purpose.

Thank you

Abhisek Chatterjee
POD, NIO
Dona Paula
Goa-403004

Ph.N- +91-9371679339


--- On Wed, 27/4/11, nuncio@xxxxxxxxx <nuncio@xxxxxxxxx> wrote:



From: nuncio@xxxxxxxxx <nuncio@xxxxxxxxx>
Subject: Re: [ferret_users] fill ffta with respect to period
To: "Abhisek Chatterjee" <abhi.iitkgp@xxxxxxxxxxx>
Date: Wednesday, 27 April, 2011, 12:08 PM


Hi,
Is this what you are looking for?

http://ferret.pmel.noaa.gov/FERRET_17sep07/Demos/ef_fft_demo/ef_fft_demo.html
nuncio

National Centre for Antarctic and Ocean Research
Headland Sada, Vasco Da Gama
Goa, 403804
India.
Ph: Cell-91 9890357423
off- 91 832 2525428

----- Original Message -----
From: "Abhisek Chatterjee" < abhi.iitkgp@xxxxxxxxxxx >
To: "Ferret users" < oar.pmel.ferret_users@xxxxxxxx >
Sent: Wednesday, April 27, 2011 11:45:44 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi
Subject: [ferret_users] fill ffta with respect to period

Dear all,

I have a current data over the water column at a particular station. To understand the period present in this time series, what I did as the following:

let fftv=ffta(v)
fill fftv

but this gives amplitude in terms of depths vs frequencies.
My interest is to make a fill plot in terms of depth and period, instead of frequencies.

I could not succeed to regrid it in days.

Is it possible to resolve this issue.

Thanks in advance

Regards,

Abhisek Chatterjee
POD, NIO
Dona Paula
Goa-403004

Ph.N- +91-9371679339