This chapter begins with the assumption that the user has followed the instructions in the previous chapter and has successfully built a pop executable. A second assumption is that the user might want to actually run an ocean simulation with the code, thereby impressing friends and colleagues and becoming a card-carrying member of the POP user's club. Given these assumptions, the following describes all the many options for configuring an ocean simulation with POP.
POP requires some input data to run correctly. The first requirement is a file called pop_in that contains many namelists that determine options and parameter values for the run. A sample input file should have been created in the run directory, but can also be found in the input_templates directory.
In addition to the namelist input file, files will be required to initialize grids, preconditioners, fields for output and possibly other options. These will be discussed in more detail below and in later chapters.
The namelists and the model features that they control are presented below. Each namelist appears in a table whose columns contain:
This script will contain a collection of pre-determined settings that were selected based on the particular $CASE configuration. A user may choose to change any of these settings, but caution should be used because many subtle interactions between the namelist variable settings are normally handled "behind the scenes" by the CESM1 POP2 setup scripts.