| | 1 | = PDAFomi_assimilate_local_nondiagR_si = |
| | 2 | |
| | 3 | This page documents the routine `PDAFomi_assimilate_local_si` of PDAF which is used in case of a non-diagonal observation error covariance matrix. This routine was introduced with PDAF V2.3. |
| | 4 | |
| | 5 | The routine is typically called in `assimilate_pdaf` or directly in the model code. |
| | 6 | |
| | 7 | `PDAFomi_assimilate_local_nondiagR_si` is the variant of [wiki:PDAFomi_assimilate_local_nondiagR PDAFomi_assimilate_local_nondiagR] with the [PdafSimplifiedInterface simplified interface]. The difference between both routines is that in the simplified interface the names of the call-back subroutines are not specified. Instead the routine assumes that the call-back routines have a standard name as specified at the end of this page. |
| | 8 | |
| | 9 | This routine is used with [wiki:PDAF_OMI_Overview PDAF-OMI] to execute the [ImplementAnalysisLocal analysis step with domain-localized filters]. The routine is used in the 'fully-parallel' implementation variant of the data assimilation system. With the 'flexible' implementation variant, the routines `PDAFomi_put_state_*' are used. |
| | 10 | |
| | 11 | The interface is the following: |
| | 12 | {{{ |
| | 13 | SUBROUTINE PDAFomi_assimilate_local_nondiagR_si(status_pdaf) |
| | 14 | }}} |
| | 15 | with the following arguments: |
| | 16 | * `status_pdaf`: The integer status flag. It is zero, if the routine is exited without errors. |
| | 17 | |
| | 18 | The routine calls several user-supplied call-back routines. They are described on the page on [ImplementAnalysisLocal implementing the analysis step of the local filter algorithms]. |
| | 19 | |
| | 20 | It is recommended that the value of `status_pdaf` is checked in the program after thie routine is executed. Only if its value is 0 the initialization was successful. |
