what is kriging
From Wiki.GIS.com. Kriging is a group of statistical techniques to interpolate the value of a random field (e.g., the elevation, z, of the landscape as a function of the geographic location) at an unobserved location from observations of its value at nearby locations.riging belongs to the family of linear least squares estimation algorithms. As illustrated in Figure 1, the aim of kriging is to estimate the value of an unknown real-valued function, , at a point, , given the values of the function at some other points, .