ABSTRACT
Spatial interpolation methods are important techniques for computation of spatial data at unsampled locations from sample data available in the domain. A number of methods have been developed for spatial interpolation in various disciplines and there are a number of different terms used to distinguish them, such as ‘interpolating’ and ‘non-interpolating’ methods or ‘interpolators’ and ‘non-interpolators’. In this chapter, all these methods are referred to as spatial interpolation methods or spatial interpolators. Many of these methods have modified versions suitable to compute different variants of spatial data. The spatial interpolation methods covered in this chapter are only those commonly used in GIS and other spatial domains. As such, the list of the methods discussed in this chapter is not exhaustive. Only the frequently used methods and their variants are discussed.
