PEST (Parameter Estimation) Workflow > Making Changes after a PEST Run

Navigation:  PEST (Parameter Estimation) Workflow >

Making Changes after a PEST Run

After PEST has been run to completion, you may need to make changes to the defined PEST inputs, and/or the numerical model.  Please follow the steps below in the case of these changes:

 

Numerical Model

 

If you change the model engine, you must go back to the start of the PEST workflow, and click Apply and Next at each step right up to the Run PEST step

 

If you change the Translation settings (eg. Solver, Package settings) and or the property package (LPF vs BCF), just go back to the Define Kriging parameters step, click [Apply] button, then you can go directly to Run PEST.

 

If you need to change the parameter zonation (eg. add or remove Conductivity zones), this is something that is not yet updated in the PEST workflow.  Please make a clone of the model run, change the parameter zonation in this clone, then launch a PEST run from this model clone.

 

PEST Inputs

 

If you change the Observations and/or Weights:

 

Return to this step in the PEST workflow and make the necessary changes

Click [Apply] button at the top of the workflow toolbar

Go to the Run PEST step

 

If you change the Property Zone parameter min/max values

 

Make the changes at this step in the workflow

Click [Apply] button

Go to Define Kriging Variograms, and click [Apply] to re-generate these PEST input files.

Go to the desired regularization step, and Regenerate the PEST Control file.

Go to the Run PEST step and Run PEST.

 

 

If you change the pilot point values, or add new pilot points

 

Make the changes at this step in the workflow

Click [Apply] button

Go to Define Kriging Variograms, and click [Apply] to re-generate these values

Go to the Run PEST step.

 


Page url:http://www.waterloohydrogeologic.com/help/vmod-flex/index.html?vm_pest_making_changes_after_run.htm