Calculating MCS Index

[Arlindo da Silva]

On Tue, Jul 21, 2009 at 1:44 AM, Piotr Djaków <pdjakow at gmail.com> wrote:

> Hello
>
> I've try to calculate MCS Index based on:
> http://rammb.cira.colostate.edu/projects/MCSIndex/mcsindexdescription.htm
>
> and i have one problem with:
>
>  "where each term (i.e., lifted index (LI), 0-3 km shear, and 700 mb
> temperature advection) is normalized by subtracting the MCS sample
> mean and dividing by the sample standard deviation.".
>

It is not your English, it is very confusing. From the text it seems to
imply that each of the input fields is to be "centered" and "scaled",
resulting in a non-dimensional quantiy. But this is inconsistent with the
units in the formula. I guess what they mean is that in each term, say

      (700mbTA - 4.5 10**(-5) ) / 7.3 10**(-5)

the "4.5 10**(-5)" is the MCS sample mean and "7.3 10**(-5)" is the MCS
sample stdv.

  This is my best guess.

      Arlindo




>
> I think that my english is to weak and i don't understand that...
> Can you tell my what i must do?
>
>
> Best Regards
> Piotr Djakow
>



-- 
Arlindo da Silva
dasilva at alum.mit.edu
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