Namelist Modifications

Many aspects of a CESM simulation can be customized through namelist settings. Namelists allow users to modify model behavior, output settings, and component-specific options without changing the source code.

In this chapter, you will learn how to work with CESM namelists and apply common namelist modifications to your simulations.

Specifically, this chapter covers:

• Overview – Introduces the CESM namelist workflow, including the files and directories involved in customizing a case.

• Documentation – Demonstrates how to find descriptions and valid values for namelist variables using the CESM documentation and online resources.

• Customizing Output – Shows how to modify model output, including changing output frequency, selecting variables, and creating custom history files.

• Exercises – Provides hands-on activities to practice creating and modifying namelist settings.