Module PDAF

The module PDAF was introduced with PDAF V3.0 and replaces the previous module PDAF_interfaces_module.

The module PDAF has to be included with use in all routines that call PDAF routines or functions:

  use PDAF

The module provides interface definitions for the routines of PDAF. With this, one obtains an explicit Fortran interface, allowing the compiler to check the consistency of arguments.

The module also provides the definition of types of DA methods as named parameters of the form PDAF_DA_X, e.g., the LESTKF with PDAF_DA_LESTKF, and their related DA-method value which is specified in the call to PDAF_init. One can print a list of the DA-method types using PDAF_print_DA_types.