Inverse distance weighting for creating a surface from sample points
A conceptual explanation of how the Inverse Distance Weighting tool in ArcGIS is used to interpolate values between sample points to estimate a surface.
Data used is from:
Burrough, P. A., & McDonnell, R. A. (1998). Principles of Geographical Information Systems. Oxford: Oxford University Press.
Created by Don Boyes, Dept. of Geography and Planning, University of Toronto