Using universal kriging to create a prediction map
Universal kriging assumes a trending mean. The data points need to be sampled from a phenomenon that is continuous in space. Important parameters are the trend surface, transformations, covariance/semivariogram models, and the search neighborhood.
Etapes :
- Click the Geostatistical Analyst Wizard button on the Geostatistical Analyst toolbar.
- Select Kriging/CoKriging and choose a dataset and attribute field, then click Next.
- Choose Universal kriging and set the Transformation type to None.
- Set the Order of Trend Removal to the desired order, then click Next.
- Specify the desired parameters on the next dialog box and click Next.
- Specify the desired parameters on the Semivariogram/Covariance Modeling dialog box and click Next.
- Specify the desired parameters on the Searching Neighborhood dialog box and click Next.
- Examine the results on the Cross Validation dialog box and click Finish.
- Click OK on the Method Report dialog box.
Rubriques connexes
7/10/2012