Interfaces for user-defined code

Description: The following table describes the available interfaces for user-defined code in the model, the names and possible arguments of the subroutines involved as well as actions which can be accomplished in these subroutines. The respective name of a source code files is the subroutine name followed by ".f90". Exception: the file containing the module user has the name user_module.f90.

Call location	Subroutine name and argument(s)	Possible actions
---	MODULE user	All user-defined variables which are used outside the respective local scopes of the user-defined subroutines have to be declared here.