3. Coupled Mode Example Model

pyHS2MF6 was designed and constructed under the premise that it would be applied to link existing HSPF and MODFLOW models into a dynamically coupled, integrated hydrologic model. Consequently, coupled mode is the primary simulation mode. A standalone mode is provided so that they user can check that pyHS2MF6 is satisfactorily reproducing the solutions of the standalone HSPF and MODFLOW models.

An example model is provided as a case study and test case to walk the user through the process of transitioning from standalone HSPF and MODFLOW models to a fully coupled simulation. This case study also explains and provides samples of pyHS2MF6 inputs and outputs.

Note

The case study models were derived solely for use in testing coupled mode simulation. Consequently, there was not an existing HSPF or MODFLOW 6 model available for the test case. As a result, the case study focuses on pyHS2MF6 implementation and simulation rather than on scientific analysis of the study site.

Caution

It is assumed for this test case that the user is an expert user of both HSPF and MODFLOW 6.

Note

It is the user’s responsibility to ensure that pyHS2MF6 is satisfactorily reproducing the standalone model representations.

Section Contents

• 3.1. Study Site
• 3.2. Standalone HSPF Model
  • 3.2.1. HSPF Model Layout and Configuration
    • 3.2.1.1. Calibration
  • 3.2.2. HSPF Software Packages and Conversion
  • 3.2.3. Running a Standalone mHSP2 Simulation
• 3.3. Standalone MODFLOW 6 Model
  • 3.3.1. MODFLOW 6 Model Layout and Configuration
    • 3.3.1.1. Boundary Conditions
  • 3.3.2. Standalone Calibration
  • 3.3.3. Running a Standalone pyMF6 Simulation
• 3.4. Coupled Mode Simulation and Results
  • 3.4.1. Coupled Mode Modifications and Inputs
    • 3.4.1.1. HSPF Model Modifications for Coupling
    • 3.4.1.2. MODFLOW 6 Model Modifications for Coupling
    • 3.4.1.3. Coupled Mode Input File
    • 3.4.1.4. Spatial Mapping for Coupling
  • 3.4.2. Coupled Mode Calibration and Results
    • 3.4.2.1. Coupled Mode Results
  • 3.4.3. Running a Coupled pyHS2MF6 Simulation