Changes between Version 1 and Version 2 of PDAFlocal_set_increment_weights


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Timestamp:
Sep 9, 2024, 3:21:16 PM (5 weeks ago)
Author:
lnerger
Comment:

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  • PDAFlocal_set_increment_weights

    v1 v2  
    11= PDAFlocal_set_increment_weights =
    22
    3 This page documents the routine `PDAFlocal_set_increment_weights` of PDAF, which is used with the [wiki:PDAFlocal] interface. This routine was introduced with PDAF V2.3.
     3This page documents the routine `PDAFlocal_set_increment_weights` of PDAF, which is used with the [wiki:PDAFlocal_overview PDAFlocal interface]. This routine was introduced with PDAF V2.3.
    44
    55This routine provides the optional functionality to prescribe the assimilation increment of each element of the local state vector a different weight. This can be used, e.g. to implement a vertical localization in the case that the local state vector is a full vertical column of the model grid. In this case, one can make the increment weight depending on the height (or depth) of a grid point. Another application is to implement weakly-coupled assimilation in which the local state vector contains all variables, but only a subset of them is updated. This is achieved by givening those element that should not be updated the weight 0.