[ncl-talk] how to prepare data to plot some lightning strike density maps

[Damjan Jelić]

Dear NCL support,

im trying to prepare data to plot some lightning strike density maps. 
Problem is efficient way of sorting informations (lat-lon pairs). For 
now im using matlab functions like "hist3" which is very fast in sorting 
my data into bins of equal values so on the end i get 2d field with 
values of strikes per bin. However I would like to do all of my work in 
NCL and im hoping that NCL has something appropriate for the job. Im 
attaching a test file containing coordinate pairs i would like to sort 
with accuracy of ~0.01° and ~0.0002°. Can you help me in any way?

Sincerely,
Damjan
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