$ 0 0 Third and fourth days of the Winter School on the GEOframe system about GEOframe are dedicated to interpolation by using Kriging and the use of Particle Swarm Calibrator.The Kriging's equationsVariographyThe GEOframe Spatial interpolation Package (SIK)Error estimation within SIK.sim Files IllustrationExercisesRainfall data analysis (data here)Resample rainfall time seriesParticle Swarm