[ncl-talk] Coefficient_of Divergence

[Kunal Bali]

Dear NCL user

Suppose, I have 2 datasets
e.g.

data1 = of single point lat & lon (e.g 28N, 72E) with time steps 365
(having filling values)
data2 = of grid box (24-32N, 68-76E) with time steps 365  (having filling
values)

Now I want to calculate the CoD from one single point to 400km grid box
area and then lot the spatial map of the calculated product.

Formula for CoD is GIVEN BELOW
​

So I calculated in NCL as

CoD1 = ((data1 - data2)/(data1 + data2))^2
CoD_final = (sqrt(sum(CoD1)))/3

please let me know is it the right way to do?

I tried to plot the final product CoD_final with the attached script, but
error comes as

fatal:Minus: Number of dimensions do not match, can't continue
fatal:["Execute.c":8578]:Execute: Error occurred at or near line 116 in
file plot.ncl



regards
Kunal Bali
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