topic Kriging Model Types in ArcGIS GeoStatistical Analyst Questions https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-model-types/m-p/622633#M1395 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have found that the model type used in Kriging can have a large influence on the RMSE of my model, but don't really understand how they work. For example, having ran lots of cross-validations with different data sets, I've found the K-Bessel model to yield the lowest RMSE, but cannot really explain why. I would like to briefly comment on the fundamentals of these models but cannot seem to find much information. Any links/references would be a great help, thank!</SPAN><BR /><BR /><SPAN>Dean</SPAN></BODY></HTML> Tue, 21 Aug 2012 16:13:21 GMT DeanMorgan 2012-08-21T16:13:21Z Kriging Model Types https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-model-types/m-p/622633#M1395 <HTML><HEAD></HEAD><BODY><SPAN>Hi,</SPAN><BR /><BR /><SPAN>I have found that the model type used in Kriging can have a large influence on the RMSE of my model, but don't really understand how they work. For example, having ran lots of cross-validations with different data sets, I've found the K-Bessel model to yield the lowest RMSE, but cannot really explain why. I would like to briefly comment on the fundamentals of these models but cannot seem to find much information. Any links/references would be a great help, thank!</SPAN><BR /><BR /><SPAN>Dean</SPAN></BODY></HTML> Tue, 21 Aug 2012 16:13:21 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-model-types/m-p/622633#M1395 DeanMorgan 2012-08-21T16:13:21Z Re: Kriging Model Types https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-model-types/m-p/622634#M1396 <HTML><HEAD></HEAD><BODY><A href="http://dusk.geo.orst.edu/gis/geostat_analyst.pdf">http://dusk.geo.orst.edu/gis/geostat_analyst.pdf</A><BR /><BR /><SPAN>The formulas for the semivariogram models are in Appendix A, page 256 (page 262 of the pdf).&nbsp; Each model corresponds to a different underlying physical process.</SPAN><BR /><BR /><SPAN>K-Bessel and Stable often produce the best results because they take an additional shape parameter that allows the models to change curvature while still maintaining the same nugget, range, and sill.</SPAN></BODY></HTML> Tue, 21 Aug 2012 16:47:10 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-model-types/m-p/622634#M1396 EricKrause 2012-08-21T16:47:10Z Re: Kriging Model Types https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-model-types/m-p/622635#M1397 <HTML><HEAD></HEAD><BODY><SPAN>Eric, prolific answers as usual, thank you!</SPAN></BODY></HTML> Tue, 21 Aug 2012 18:08:23 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-model-types/m-p/622635#M1397 DeanMorgan 2012-08-21T18:08:23Z