Code Modifications

The goal of this chapter is to understand how to modify the CESM code. This is referred to as source code modifications.

• The section Overview describes the steps for making source modifications and provides a visual representation of the directories and files that need to be modified.

• The section Source Code Modification Example provides detailed instructions on how to add a new variable to CAM: the atmospheric temperature at 750hPa.

• The section Exercises offers opportunities to practice the concepts learned in this chapter.