Changes between Version 3 and Version 4 of PDAF_diag_rmsd_nompi


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Timestamp:
Apr 1, 2025, 9:17:43 AM (3 days ago)
Author:
lnerger
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  • TabularUnified PDAF_diag_rmsd_nompi

    v3 v4  
    1 = PDAF_diag_rsmd_nompi =
     1= PDAF_diag_rmsd_nompi =
    22
    33This page documents the routine `PDAF_diag_rmsd_nompi` of PDAF, which was introduced with PDAF V3.0.
    … …  
    2222
    2323**Note:**
    24  * The routine is used to compute the RMSD with regard to some reference state. To compute the ensemble-sampled standard deviation, i.e. the estimated RMSD from the data assimilation, there are the routines [wiki:PDAF_diag_stddev_nompi] and [wiki:PDAF_diag_stddev].
     24 * The routine is used to compute the RMSD between two state vectors. To compute the ensemble-sampled standard deviation, i.e. the estimated RMSD from the data assimilation, there are the routines [wiki:PDAF_diag_stddev_nompi] and [wiki:PDAF_diag_stddev].
    2525 * We recommend to use this routine only in cases where the MPI parallelization is not initialized, e.g. in separate post-analysis programs. In assimilation programs, where the parallelization is initialized for PDAF, we recommend to use the routine `PDAF_diag_rmsd` for better overall compatibility.
    2626 * The routine does not perform any MPI operations and can also be used if PDAF was not initialized by calling `PDAF_init`.