[gradsusr] OLR ANOMALY INDEX STANDARDIZATION

[Carlos Batista]

I see your date...

The normalized is make

your data value (X) minus the average this data (x), divided by the
standard deviation of a time series (y)

n=X-x/y

you'll do  average this your data by OLR?

2015-01-22 9:20 GMT-02:00 Rekha Bharali <rekha.bharali06 at gmail.com>:

> Thank you for your prompt reply.
>
> Actually what I am doing is :
>
> (1) Calculate mean for the base period 1981-2010
> (2) Calculate standard deviation  for the above period
> (3) Standardize the OLR anomaly by the following formula:
>
>                      (present OLR-base period mean) / standard deviation
>
> But I am not sure whether I am doing it correct or not. Because my
> result does not match with the standard value attached with this mail.
>
> I think the standardization method is different then what I am doing.
>
> I will follow your suggestion and let you know.
> Thank you
>
> On 1/22/15, Carlos Batista <krlosbatist at gmail.com> wrote:
> > You want to split the average standard deviation?
> >
> > ******************************************
> > * Remove by variable tend
> > ******************************************
> > *my variable number 1****
> >
> > ltrend vaz.2 vazm slope12 rmse12
> > define dvaz12=vaz.2-vazm
> >
> > ***** If you want to make average moving*****
> > rmean dvaz12 6 dvaz6mm
> > *************************************************
> > *my variable 2****
> > ltrend mediaan mediaand s e
> > define mediaanm=mediaan-mediaand
> >
> > ******************************************
> > * Here I normalizeted my variables  - Divided by the standard deviation
> > ******************************************
> >
> > dp1=sqrt(ave(pow(dvaz6mm,2),t=1,t=33))
> > set ccolor 1
> > set cthick 6
> > set cmark 0
> > d dvaz6mm/dp1
> >
> > dp2=sqrt(ave(pow(mediaanm,2),t=1,t=33))
> > set gxout bar
> > set bargap 40
> > set barbase 0
> > set baropts outline
> > set ccolor 4
> > d mediaanm/dp2
> >
> > **************************************
> >
> > The rmean you find in
> >
> > *...http://www.atmos.umd.edu/~bguan/grads/GrADS_Scripts.html
> > <http://www.atmos.umd.edu/~bguan/grads/GrADS_Scripts.html>*
> >
> > Carlos
> >
> >
> > 2015-01-22 3:33 GMT-02:00 Rekha Bharali <rekha.bharali06 at gmail.com>:
> >
> >> Can anybody please help me with a grads script to calculate Standardize
> >> OLR anomaly index
> >> using Grads. It will be agreat help.
> >>
> >> --
> >> .......................................................................
> >> Rekha Bharali Gogoi
> >> NE-SAC
> >> Dept. of Space
> >> Govt. of India
> >> Meghalaya
> >>
> >> _______________________________________________
> >> gradsusr mailing list
> >> gradsusr at gradsusr.org
> >> http://gradsusr.org/mailman/listinfo/gradsusr
> >>
> >>
> >
>
>
> --
> .......................................................................
> Rekha Bharali Gogoi
> Scientist 'SC'
> NE-SAC
> Dept. of Space
> Govt. of India
> Meghalaya
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>
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