Changes between Version 5 and Version 6 of PDAF_local_weight


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Timestamp:
Feb 22, 2023, 1:25:41 PM (21 months ago)
Author:
lnerger
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  • PDAF_local_weight

    v5 v6  
    44This page documents the routine `PDAF_local_weight` of PDAF.
    55
    6 The routine is used for localization in the analysis step of a filter and computes a weight according to the specified distance and the settings for the localizing function. Typically the routine is called in [wiki:prodRinvA_l_pdaf prodRinvA_l_pdaf] in the filters LESTKF, LETKF, and LSEIK. Also, the routine is typically called for the LEnKF in the routine [localize_l_pdaf localize_l_pdaf].
     6The routine is used for localization in the analysis step of a filter and computes a weight according to the specified distance and the settings for the localizing function. Typically the routine is called in [wiki:prodRinvA_l_pdaf prodRinvA_l_pdaf] in the domain-localized filters. Also, the routine is typically called for the LEnKF in the routine [wiki:localize_covar_pdaf localize_covar_pdaf].
     7
     8This routine is usually only used in user-codes that do not use PDAF-OMI.
    79
    810The interface is the following:
    … …  
    3032 * Array `A` is usually the array `A_l` that is an input argument to the routine [wiki:prodRinvA_l_pdaf prodRinvA_l_pdaf].
    3133
    32 Examples of using `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).
     34Examples of 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`. Another example is provided in the templates in `templates/classical/`.