Hello,

I want to analyse the standard deviation of the NDVI index for one given month on for multiple years (the maximum is the better, 20 years of MODIS is the best).

I need all the scenes of a given month for the maximum number of years. It make, with one per day, 30x20 = 600 scenes.

I think I can reduce this a bit, like 15x20 or 10x20.

I did a script respecting the optimisation recommandation the best as I can. It is here : https://raw.githubusercontent.com/Dessoul/ibisa-eo/master/Modis/NDVISD.js

The problem is that it do not work with more than some years (~4). After, I get a 504 Gateway Time-out

Is there a way to make it run on more historical data ?

How frustrating it is to have 20 years but only use 4

Thank you !