Changes between Version 1 and Version 2 of PDAF_diag_stddev


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Timestamp:
Mar 21, 2025, 6:27:46 PM (11 days ago)
Author:
lnerger
Comment:

--

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  • PDAF_diag_stddev

    v1 v2  
    1919  REAL, INTENT(in)    :: ens_p(dim_p, dim_ens) ! process-local state ensemble
    2020  REAL, INTENT(out)   :: stddev_g              ! Global mean standard deviation of ensemble
    21   INTEGER, INTENT(in) :: do_mean               ! Whether to compute ensemble mean
     21  INTEGER, INTENT(in) :: do_mean           !< 1 to also compute ensemble mean; 0 for no computation of mean
    2222  INTEGER, INTENT(in) :: COMM_filter           ! Filter communicator
    2323  INTEGER, INTENT(out) :: status               ! Status flag (0=success)
    … …  
    2626**Note:**
    2727 * The ensemble standard deviation is a common measure of the estimate model root mean square error. It is typically computed in `prepoststep_pdaf` to monitor the assimilation process.
     28 * The option `do_mean` exists mainly for performance reasons. If `state_p` contains is ensmeble mean state it does not need to be computed again.