Calculate an average for many many time steps

Discussion created by sakuraono on Oct 16, 2011
Latest reply on Jan 11, 2012 by philmorefield
Hello all,

I have a netCDF file of temperature. It has 1308 time steps (12 months for 109 years).
I was wondering how would I go about calculating the average for the 1308 time steps?

I am trying to do this in Model Builder. If I had only a couple time steps, I would just add them up and then divide them using simple math tools in the toolbox. However, because I have 1308 of them, what should I do to make the summing automatic (so I don't have to manually specify the time step in the "make netCDF raster layer" tool for 1308 times!)?

I get a feeling that I might need to do this in python? or I can achieve this in Model builder as well? I'm fairly new to ArcGIS and my programming skills are not so stellar, so I don't know how to do that. :(  although if python is the only way to do, I wouldn't mind learning it, although I would really appreciate any pointers or suggestions (books, web resources...etc.) on how I can quickly learn it.

I'm using ArcGIS 9.2 (although my school has ArcGIS 10, so suggestions on either or both would do!)

thanks so much for your help! :)