Re: Taylor Diagram

[1] You can use any reference grid. As to what is appropriate for
     one year of daily data, I don't know. You have to make that
     decision.

[2] for only an 8 degree latitude span, the results will be
     more or less the same. Again, you shuld make that choice.

Good luck

On 11/15/11 8:37 AM, I N wrote:
> Dear All,
> I have a one year daily precipitation data from different setups of
> the same RCMl and observed precipication, all on the same curvilinear
> grid (Lambert conformal projection).
> The task is to create taylor diagram for whole year, Winter, Summer
> and 4 seasons (DJF,MAM,....).
> The latitude span of domain is from 42N to 50N (8 degree)
>
> I have few questions:
>
> 1) From NCL website, second line on the page "Special Topics: Taylor Diagrams"
>
> "The plotted values are generally derived from monthly or seasonal
> climatological means of one or more variables"
>
> This means that it is recommended to use monthly/seasonal climatology.
> Does it apply to all cases or in my case (only 1 year of data)
> I can use daily data. What is advantage/disadvantage of using daily data?
>
>
> 2) From ncl-talk archive of May 21, 2010.
>
>>> If the region being tested is 'large' then a weight variable [wgt]
>>> should be created. If your region is 'small', you can ignore the
>>> weight [wgt=1]. Given that you are looking at a very small area, you
>>> can ignore any weighting. Also you have masked out all points outside
>>> your area of interest.
>
> Small and large are relative terms!! If the latitude span is 8 degree,
> it is considered small or not?
> I find significant differences between wgt=1 and
> wgt=cos(lat2d*0.01745329) versions of taylor diagram.
>
> Thanks in advance
> Regards
> Nadeem
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Received on Tue Nov 15 09:01:44 2011