[ncl-talk] Problem plotting wavelet from a time series

Dennis Shea shea at ucar.edu
Sat Oct 2 12:02:13 MDT 2021


A wavelet expert I am not.

However, the data series you use as input is composed of temporal (JJAS)
**segments**. Each series is independent. [The series has yearly time gaps
(ONDJFMAM). ] Appending these to obtain a single 'time series' is not
appropriate.

I **speculate** that you should compute the yearly values; average; then
plot the result. Something like:

Example 5
*https://www.ncl.ucar.edu/Document/Functions/Built-in/specx_anal.shtml*
<https://www.ncl.ucar.edu/Document/Functions/Built-in/specx_anal.shtml>






On Sat, Oct 2, 2021 at 10:25 AM Lyndz via ncl-talk <
ncl-talk at mailman.ucar.edu> wrote:

> Dear Jonathan, Joseph, and NCL-experts,
>
> Thank you for your suggestions.
>
> I tried modifying the script following the suggestions above.
>
> But I'm still getting the plot incorrectly..
>
> My input file has 121 days x 40 years data. Not a complete year (only
> JJAS). So I set something like 121/365=0.33 for dt.
> Is this correct?
>
> Attached to this email is the output of the script, the script, and the
> input file.
>
> Any suggestions how to do this correctly
>
>
>
> _______________________________________________
> ncl-talk mailing list
> ncl-talk at mailman.ucar.edu
> List instructions, subscriber options, unsubscribe:
> https://mailman.ucar.edu/mailman/listinfo/ncl-talk
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20211002/b8f182a8/attachment.html>


More information about the ncl-talk mailing list