[ncl-talk] About Rotated EOF patterns PCs

[Dennis Shea]

Standard EOF analysis is a mathematical operation that transforms data
into *orthogonal
*(*uncorrelated*) patterns. The PCs [time series] are created using these
orthogonal properties.

When the orthogonal patterns are rotated they are no longer uncorrelated.
try using the 'eofunc_ts' function. See what you get.

I suggest that you read:

*An Evaluation of Rotated EOF Analysis and Its Application to Tropical
Pacific SST* <https://doi.org/10.1175/JCLI-D-11-00663.1>

Good Luck

On Thu, Oct 25, 2018 at 2:51 AM Qiyun Ma <qiyun.ma at studium.uni-hamburg.de>
wrote:

> Dear Sir/Madam,
>
> I have got one question about REOFs in eof_5_640.ncl (
> https://www.ncl.ucar.edu/Applications/eof.shtml).
>
> My question is that:
>
> There is code to plat the PCs (EOF time series) of classic EOF, but there
> is no code to plot the PCs for REOF?
>
> Is there any methods to plot the PCs of REOF?
>
> Best regards,
> Qiyun
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