Changes between Version 1 and Version 2 of PDAF_iau_add_inc
- Timestamp:
- Mar 25, 2025, 7:41:02 PM (7 days ago)
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PDAF_iau_add_inc
v1 v2 3 3 This page documents the routine `PDAF_iau_add_inc` of PDAF, which was introduced with PDAF V3.0. 4 4 5 This routine is used with the flexible parallelization mode if a routine PDAF3_put_state_X (or any other PDAF*_put_state) routine is used. Since PDAF*_put_state is only called after a model state is intergrated over the forecast period, this routine cannot apply the increment. For this one has to call `PDAF_iau_add_inc` at each model time step in the time stepping loop of the model. This routine adds the increment for the currently integrated ensemble member according to the specified IAU type and number of IAU steps.5 This routine is used with the flexible parallelization mode if a routine `PDAF3_put_state_X` (or any other PDAF*_put_state) routine is used. Since `PDAF*_put_state` is only called after a model state is integrated over the full forecast period, this routine cannot apply the increment. Hence, the routine `PDAF_iau_add_inc` has at each model time step in the time stepping loop of the model to apply the increment. This routine adds the increment for the currently integrated ensemble member according to the specified IAU type and number of IAU steps. 6 6 7 7 The routine has to be inserted in time stepping loop of the model code. It has to be called at each time step. … … 10 10 {{{ 11 11 SUBROUTINE PDAF_iau_add_inc(U_collect_state, U_distribute_state) 12 13 EXTERNAL :: U_collect_state, & ! Routine to collect a state vector 14 U_distribute_state ! Routine to distribute a state vector 12 15 }}} 13 with the following arguments:14 {{{15 EXTERNAL :: U_collect_state, & !< Routine to collect a state vector16 U_distribute_state !< Routine to distribute a state vector17 }}}