[ncl-talk] serious bugs of fourier_info in NCL v.6.2.0

[Maria Gehne - NOAA Affiliate]

>From your figures it also looks like the patterns could be the same and
that just the scaling is different. Did you look at the actual values?

Maria

On Mon, Mar 2, 2015 at 5:36 PM, Dennis Shea <shea at ucar.edu> wrote:

> Just sending these figures would indicate an issue. However, it does not
> help in finding the source.
> Checking the history of functions ...
>    http://www.ncl.ucar.edu/prev_releases.shtml
>
> This does not indicate that any explicit change has occurred in
> 'fourier_info' since its introduction.
>
> Are the number of  values odd or even ...
> Really, nothing can be done without more information.
>
> On Mon, Mar 2, 2015 at 3:27 PM, Thomas Tobian <thomastobian at gmail.com>
> wrote:
>
>> Dear NCL developer,
>>
>> I found serious bugs for the fourier_info function in NCL v.6.2.0,
>> Attached, please find an example to illustrate it:
>> The first two rows are the amplitude of ozone wave1 based on NCL. v. 6.1.2
>> and the 3rd-4th rows are computed based on NCL v.6.2.0? The results from
>> v.6.2 seems to be not realistic and incorrect.. Could you please find the
>> source of the errors? This case also applies for the phase and explained
>> variance results.
>>
>> Thanks
>> Thomas Tobian
>>
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