Re: about wavelet

Not sure the scaling constant was used. It is a donated script.

The
scaleavg = dj*dt/Cdelta*dim_sum_Wrap(powernorm(time|:,{period|2.:8.}))

is effectively,

scaleavg = (dj*dt/Cdelta)*dim_sum_Wrap(powernorm(time|:,{period|2.:8.}))

Perhaps, this is more clear.

On 8/30/12 6:40 AM, JinQ Liu wrote:
> hi,
> I wonder why in script wavelet_2.ncl
> <http://www.ncl.ucar.edu/Applications/Scripts/wavelet_2.ncl> it uses
>
> scaleavg = dj*dt/Cdelta*dim_sum_Wrap(powernorm(time|:,{period|2.:8.}))
>
> to caculate the average power of 2-8 yr. Why do not use
>
> scaleavg = dim_sum_Wrap(powernorm(time|:,{period|2.:8.}))
>
> directly?
>
> Thanks in advance.
>
>
> JinQ
>
>
> --
> JinQing LIU M.S.
> Ocean University of China
> --
>
>
>
>
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Received on Fri Aug 31 04:47:03 2012