[gradsusr] Fw: EOF and spectral analysis on GrADS

[Jose Augusto Paixão Veiga]

Dear EOF expertise,

one of you would have a material given instruction (if possible step by step) on how to calculate EOF?

I would like to do a fortran program, from the initial point (for example: 1-read a 3-d matrix data, 2-calculate its inversion, 3-multiply it by its ....), to calculate EOF for climate study purposes.

A flux diagram will be very appreciated. 

Thanks in advance.   

Augusto


On Jan 26, 2013, at 3:41 PM, Tamer Nada <tamer540 at gmail.com> wrote:

> on Grads No, but you can use NCL  or R to compute EOF; and Only R  or Matlab to Compute CCA ,But also you can Use NCL to compute "SVD" and after that you can compute CCA ,actually NCL have function to compute CCA ,But not efficient because  its use old IBM Fortran subroutine ,so its not work fine with big array of data and may be hang in calculation ,so i prefer to use SVD function and after that you can compute CCA    
> 
> On Sat, Jan 26, 2013 at 9:58 AM, ugo okoro <uknac23 at yahoo.com> wrote:
> 
> Dear all,
> 
> Please any info on how to run EOF and spectral analysis (frequency-time) on GrADS?
> 
> Anticipating prompt response.
> 
> Thanks.
> 
> Ugo Okoro.
> CMSR-IAP
> CAS, Beijing.
> 
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> 
> -- 
> =====================
> Tamer Ali Nada 
> Research Worker
> Cairo Numerical Weather Prediction Center { CNWP}
> Egyption Meteorological Authority   { EMA }
> Cairo , Egypt
> ============================
> tamer540 at yahoo.com
> tamer540 at gmail.com
> tamer.nada at noaa.gov
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