I have tried searching for an answer but can't think of a way to generalize my question to other scenarios. Looking for answers using ArcMAP 10.1.
I currently have two shapefiles. One contains different values for the quantity of dry matter (DM) per hectare (e.g. one patch of 100 metric tonnes (t) of dm per hectare, another of 50, another 70 and so on...). The other shapefile has 1 km pixels scattered over different locations, and each of these pixels has its own time and date stamp attached to it.
If two pixels overlap I want to distribute the percentage of that 100 t per hectare that between the two (or more) overlapping areas proportionatly to the area.
For example If two 1 ha pixels (ha to make it simple) have a 50% overlap, both features would have 25 t for the overlapping area (in reality we would now have 4 pixels); and if their were four 4 ha pixels with 50% overlap in the same space it will be 12.5 t (with 8 pixels)etc. (example picture below)
I would like to apply the above workflow in a model in ArcGIS 10.1 to a big dataset. I am happy to convert the shapefiles to rasters etc and have full access to the different tools.