What method (using ArcGIS Pro 2.7) would you propose for carrying out simple area weighting interpolation (also called areal weighted interpolation)?
I do not want the intricate Areal Interpolation with models as is offered through the Geostatistical Wizard. My project is comparing a simple AWI to a dasymetric method; transferring population count from census tract to a raster format (after which it can be applied to any areal unit).
So I simply need to create a raster output whereby each grid cell is assigned a population value based on the percentage area of the host/source areal unit (census tract).
Thanks Dan - I think you're definitely onto something there. I couldn't quite figure out how to apply it so have gone a long way around:
This was probably a very clumsy way around. Please correct me if this could have been done a different way.
The only concern would be your 3rd step. You have spread the population amongst all the pixels which may not reflect the original distribution (aka, density)
Thanks Dan, definitely a warranted concern. Fortunately my data is population 'count', and the project is trying to provide a better alternative to simple area weighting interpolation to avoid this concern. But I'm currently trying to do this more simple areal weighting as a base to compare methods to.
Hope this makes a bit more sense in context?