https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/semivariogram-sensitivity-tool/m-p/1253377#M1789 <P><a href="https://community.esri.com/t5/user/viewprofilepage/user-id/593872">@brghtwk</a>&nbsp;The main idea behind the tool is to investigate the impact of slightly changing the semivariogram parameters of an existing model (often called a "sensitivity analysis").&nbsp; Since you must choose specific values for semivariogram parameters, it is reassuring if you get nearly the same results by using slightly different semivariogram parameters.&nbsp; If the predictions change a lot for small changes of the semivariogram parameters, then your results may only reflect the arbitrary parameter choices, rather than an accurate representation of the underlying process.</P><P>The tool tests this by adding random noise to the semivariogram parameters (range, nugget, sill, etc) and recomputing predictions.&nbsp; You must provide the initial model (a geostatistical layer) using the Geostatistical Wizard.&nbsp; You'll define the semivariogram model (Spherical, Exponential, etc) along with initial parameter values.&nbsp; The Semivariogram Sensitivity tool then adds the noise to the parameters.</P> Tue, 31 Jan 2023 15:56:03 GMT EricKrause 2023-01-31T15:56:03Z https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/semivariogram-sensitivity-tool/m-p/1251500#M1788 <P>Hi Community,</P><P>I want to perform sensitivity of different types of semivariogram models. However, I am facing difficulty in intuitively understanding how the tool work. I need assistance to confidently employ this tool.</P><P>Thanks for your help in advance.&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Wed, 25 Jan 2023 18:59:48 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/semivariogram-sensitivity-tool/m-p/1251500#M1788 brghtwk 2023-01-25T18:59:48Z https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/semivariogram-sensitivity-tool/m-p/1253377#M1789 <P><a href="https://community.esri.com/t5/user/viewprofilepage/user-id/593872">@brghtwk</a>&nbsp;The main idea behind the tool is to investigate the impact of slightly changing the semivariogram parameters of an existing model (often called a "sensitivity analysis").&nbsp; Since you must choose specific values for semivariogram parameters, it is reassuring if you get nearly the same results by using slightly different semivariogram parameters.&nbsp; If the predictions change a lot for small changes of the semivariogram parameters, then your results may only reflect the arbitrary parameter choices, rather than an accurate representation of the underlying process.</P><P>The tool tests this by adding random noise to the semivariogram parameters (range, nugget, sill, etc) and recomputing predictions.&nbsp; You must provide the initial model (a geostatistical layer) using the Geostatistical Wizard.&nbsp; You'll define the semivariogram model (Spherical, Exponential, etc) along with initial parameter values.&nbsp; The Semivariogram Sensitivity tool then adds the noise to the parameters.</P> Tue, 31 Jan 2023 15:56:03 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/semivariogram-sensitivity-tool/m-p/1253377#M1789 EricKrause 2023-01-31T15:56:03Z https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/semivariogram-sensitivity-tool/m-p/1307017#M1794 <P>Thank you</P> Mon, 10 Jul 2023 18:18:49 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/semivariogram-sensitivity-tool/m-p/1307017#M1794 BrightAwuku1 2023-07-10T18:18:49Z