What you see in the e-grid in 2.36 is just what I threw together in a couple of hours to test out the system
Right now the only layer that actually does anything is O2. At the start of a sim, all values are randomized in this layer then the values gradually spread form high to low until the whole grid is homogenized.
Other than that though, there are no interactions with anything except for the special case that shots not hitting anything are dumped to the grid as temperature just to test the interaction. (possibly disabled in the release)
You can pretty much ignore the e-grid in 2.36 as it isn't any use to anybody yet.
I thought Num was going to disable it for this release anyway.
At least he disabled the grid interaction that was crashing on anything above size 1.