Re: [ferret_users] Differences in mean computation CDO/Ferret?

[Martin Schmidt <martin.schmidt@xxxxxxxxxxxxxxxxx>]

Nicolas,

it would help to see your scripts, may be only the most important lines.


Best,
Martin
Am 23.05.2016 um 12:13 schrieb Nicolas Freychet:
> Dear Ferret users,
>
> I computed composites of the geopotential by selecting specific days 
> only (using Ferret condition IF (....) then .... ), and created a file 
> with only these days (thus it's continuous serie but the calendar is 
> not continous are there are gaps in the days)
>
> I then computed the time-mean from the composites with CDO (cdo 
> -timmean .....) and Ferret ( L=@ave ) and I can notice strong 
> differences between the 2 results (attached, left is CDO and right is 
> Ferret). It's not just the magnitude, also the patterns differ (though 
> the main signal is quite close), which is really strange.
>
> I dont know if it's a Ferret or CDO problem, or if it comes from the 
> gaps in the calendar of the composites... But even so, the patterns 
> should at least look similar.
>
> Best,
> Nicolas