Spatial interpolation

Spatial interpolation is a technique for predicting spatial data in a place where there is no observed data. This technique uses observed data for interpolation. Now we'll work with arbitrary meteorological data recorded in several locations of areas surrounding Dhaka, Bangladesh. We'll predict temperature at every point of the raster that covers this area. For doing so, we consider the raster of the Digital Elevation Model (DEM) and use its extent to generate a raster and plot point data on this raster. Then, using different interpolation techniques, we'll predict temperatures at every other point of the raster file.

Nearest-neighbor interpolation

We'll then convert this raster data...