The program model_mod_check.f90 can be used to test the routines individually before running them with filter. Add a mkmf_model_mod_check and path_names_model_mod_check to your DART/models/your_model/work subdirectory. You might find it helpful to consult another model matching your model type (simple or complex). See the documentation for model_mod_check
<../assimilation_code/programs/model_mod_check/model_mod_check> in DART/assimilation_code/programs/model_mod_check for more information on the tests available.