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Revision of ModelMuse to Support the Use of PEST Software With MODFLOW and SUTRA Models

Techniques and Methods 6-A64
Water Availability and Use Science Program
By:
https://doi.org/10.3133/tm6A64

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Executive Summary

ModelMuse is a graphical user interface for several groundwater modeling programs. ModelMuse was updated to generate the input files for the parameter estimation software suite PEST. The software is used with MODFLOW or SUTRA models to run PEST-based parameter estimation and display the updated model inputs after parameter estimation. The PEST input files can also be used with the PEST++ version 5 software suite.

Parameter estimation typically requires defining the parameters being adjusted during calibration and observations for assessing calibration quality. After a parameter is defined in ModelMuse, it can be applied to all or part of a model dataset. Pilot points—a parameterization device that facilitates higher levels of parameterization—can be used to assign spatially variable distributions of model inputs. Parameters can be applied to temporally varying features, such as boundary conditions, by either applying them to all the values in a series in one step or by applying separate parameters to individual members of a series. ModelMuse allows the definition of many observation types from various model output files. For MODFLOW 6 and SUTRA models, new options were added to ModelMuse to allow it to display the changed input after parameter estimation is complete. For MODFLOW–2005 and MODFLOW–NWT models, ModelMuse can import an entire model for visualization. An example illustrates the use of PEST with a MODFLOW 6 model in ModelMuse.

Suggested Citation

Winston, R.B., 2024, Revision of ModelMuse to support the use of PEST software with MODFLOW and SUTRA models: U.S. Geological Survey Techniques and Methods book 6, chap. A64, 56 p., https://doi.org/10.3133/tm6A64.

ISSN: 2328-7055 (online)

Table of Contents

  • Acknowledgments
  • Executive Summary
  • Introduction
  • Installing PEST
  • Using Parameters With Datasets
  • Using PEST Parameters With Model Features
  • PEST Calibration Observations
  • PEST Control Variables
  • Running PEST
  • Using SVD-Assist
  • Visualizing Residuals
  • Visualizing Modified Model Input
  • Limitations
  • Example
  • Summary
  • References Cited
  • Appendix 1. "EnhancedTemplateProcessor"
  • Appendix 2. "Mf6ObsExtractor"
  • Appendix 3. "Mf2005ObsExtractor"
  • Appendix 4. "SutraObsExtractor"
Publication type Report
Publication Subtype USGS Numbered Series
Title Revision of ModelMuse to support the use of PEST software with MODFLOW and SUTRA models
Series title Techniques and Methods
Series number 6-A64
DOI 10.3133/tm6A64
Year Published 2024
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) WMA - Integrated Modeling and Prediction Division
Description Report viii, 56 p.; Software Release
Online Only (Y/N) Y
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details