Sayın, I.Arıkan, F.Arıkan, Orhan2016-02-082016-02-082007-06http://hdl.handle.net/11693/26929Date of Conference: 14-16 June 2007Conference name: 3rd International Conference on Recent Advances in Space Technologies, RAST 2007Spatiotemporal variations in the ionosphere affects the HF and satellite communications and navigation systems. Total Electron Content (TEC) is an important parameter since it can be used to analyze the spatial and temporal variability of the ionosphere. In this study, the performance of the two widely used Kriging algorithms, namely Ordinary Kriging (OrK) and Universal Kriging (UnK), is compared over the synthetic data set. In order to represent various ionospheric states, such as quiet and disturbed days, spatially correlated residual synthetic TEC data with different variances is generated and added to trend functions. Synthetic data sampled with various type of sampling patterns and for a wide range of sampling point numbers. It is observed that for small sampling numbers and with higher variability, OrK gives smaller errors. As the sample number increases, UnK errors decrease faster. For smaller variances in the synthetic surfaces, UnK gives better results. For increasing variance and decreasing range values, usually, the errors increase for both OrK and UnK. © 2007 IEEE.EnglishAerospace industryErrorsFunction evaluationIonosphereIonospheric measurementSamplingSatellite communication systemsStatisticsTelecommunication systems(001) parameter(min ,max ,+) functionsIn orderIncreasing varianceinternational conferencesKrigingOrdinary kriging (OK)Sample numberSampling patternsSampling pointsSatellite communicationsSmall samplingSpace technology (ST)Spatial and temporal variabilitySpatially correlatedSpatio-temporal variationsSynthetic dataSynthetic data setsSynthetic surfacesTotal electron content (TEC)Universal krigingWide-rangeError analysisConference Paper10.1109/RAST.2007.4284019