Changes between Version 6 and Version 7 of PDAF_local_weights


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Timestamp:
Feb 22, 2023, 1:28:00 PM (15 months ago)
Author:
lnerger
Comment:

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  • PDAF_local_weights

    v6 v7  
    33This page documents the routine `PDAF_local_weights` of PDAF.
    44
    5 The routine is used for localization in the analysis step of a filter and computes weights according to the specified distances and the settings for the localizing function. The routine can be called in [wiki:prodRinvA_l_pdaf prodRinvA_l_pdaf] in the filters LESTKF, LETKF, and LSEIK. Also, the routine can be used for the LEnKF in the routine [localize_l_pdaf localize_l_pdaf].
     5The routine is used for localization in the analysis step of a filter and computes weights according to the specified distances and the settings for the localizing function. The routine can be called in [wiki:prodRinvA_l_pdaf prodRinvA_l_pdaf] in the domain-localized filters. Also, the routine can be used for the LEnKF in the routine [localize_covar_pdaf localize_covar_pdaf].
     6
     7This routine is usually only used in user-codes that do not use PDAF-OMI.
    68
    79The interface is the following:
     
    2224 * `PDAF_local_weights` does not support the regulated localization method (Nerger et al. ,Quarterly Journal of the Royal Meteorological Society, 138 (2012) 802-812; see [wiki:PublicationsandPresentations Publications]). To use the regulated localization one has to use the alternative routine [wiki:PDAF_local_weight PDAF_local_weight].
    2325
    24 There are currently only examples of using `PDAF_local_weight`, but not `PDAF_local_weights`. The examples for `PDAF_local_weight` can be found in the files `prodrinva_l_pdaf.F90` in the tutorial cases. Another example is, e.g. provided in the Lorenz-96 test case (see /testsuite/src/lorenz96/prodrinva_local.F90).
     26There are currently only examples of using `PDAF_local_weight`, but not `PDAF_local_weights`. The examples for using `PDAF_local_weight` can be found in the files `prodrinva_l_pdaf.F90` in the tutorial cases for the 'classical' (non-OMI) implentations in `tutorial/classical` and in the templates in templates/classical/.