Re: Question

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Thu Apr 12 2012 - 11:09:51 MDT

I have not looked at the MJO diagnostics in a *long* time.

===
I did not provide an option for the labels. It has some
hard wired lines.

You can copy the diagnostics_cam.ncl and modify the
'mjo_phase_background' procedure. It is just an NCL script.

%> cp $NCARG_ROOT/lib/ncarg/nclscripts/csm/diagnostics_cam.ncl
my.diagnostics_cam.ncl

and then modify as you desire. If you get something you think
others might prefer, your procedure could be added as a separate
procedure and be added to future NCL releases.

===
Re: mjoclivar_14.ncl

Obviously, making the suggested change is trivial.
My question ... Is

mjo_ts_index = eof_ts_cdata(0,:)^2 + eof_ts_cdata(1,:)^2

a mistake? This is a variance. The sqrt(..) is not a variance.

As I recall, I matched the results I obtained with existing diagnostics
from the MJO CLivar site.

D

On 04/12/2012 10:09 AM, Ventrice, Michael J wrote:
> Hi,
>
> I'm wondering if it is possible to change the different geographical
> location strings when plotting the RMM Phase space diagram plot that has
> been made available,
>
> http://www.ncl.ucar.edu/Document/Functions/Diagnostics/mjo_phase_background.shtml
>
> Further, we believe that you may need to add a new variable using the
> sqrt() function to the script named mjoclivar_14.ncl when trying to plot
> the "MJO Strong Index" x-y plot.
>
> Original:
>
> mjo_ts_index = eof_ts_cdata(0,:)^2 + eof_ts_cdata(1,:)^2
>
> Suggested New Variable:
>
> sqrt_mjo_ts_index = sqrt(eof_ts_cdata(0,:)^2 + eof_ts_cdata(1,:)^2)
>
> You would need to take the 91 day running average of the new variable,
> and change the original variable to the new variable in the "MJO Strong
> Index" part of the script towards the bottom.
> Best,
> Mike
>
> --
> Michael J. Ventrice
> Department of Atmospheric and Environmental Sciences
> University at Albany, New York, ES 218
> MVentrice@albany.edu <mailto:MVentrice@albany.edu>
> Mike.Ventrice@gmail.com <mailto:Mike.Ventrice@gmail.com>
> http://mikeventrice.weebly.com/index.html
>
>
>
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Received on Thu Apr 12 11:10:00 2012

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