Changes between Version 4 and Version 5 of PDAF3_assimilate_local


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Timestamp:
Mar 26, 2025, 6:44:59 PM (6 days ago)
Author:
lnerger
Comment:

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  • PDAF3_assimilate_local

    v4 v5  
    33This page documents the routine `PDAF3_assimilate_local`. The routine is part of the advanced [wiki:PDAF3_interface PDAF3 interface] that was introduced with PDAF V3.0. 
    44
    5 The routine is used to execute the analysis step of all local ensemble filters including the nonlinear filter LNETF and the ENSRF/EAKF (but except the [wiki:ImplementAnalysislenkfOmi LEnKF]). The routine uses the functionalities provided by PDAF-OMI and PDAFlocal to yield a minimum number of arguments.
     5The routine is used to execute the analysis step of all local ensemble filters including the nonlinear filter LNETF, the hybrid filter LKNETF, and the ENSRF/EAKF (but except the [wiki:ImplementAnalysislenkfOmi LEnKF]). The routine uses the functionalities provided by PDAF-OMI and PDAFlocal to yield a minimum number of arguments.
    66
    77The routine is typically called in `assimilate_pdaf` or directly in the model code.
    … …  
    2424 * `U_obs_op_pdafomi`: [[BR]]The name of the user-supplied routine that acts as the observation operator on some state vector. This routine is part of an OMI observation module.
    2525 * `U_init_n_domains`: [[BR]]The name of the routine that provides the number of local analysis domains
    26  * `U_init_dim_l`: [[BR]]The name of the routine that provides the state dimension for a local analysis domain
    27  * `U_init_dim_obs_l_pdafomi`: [[BR]]The name of the routine that initializes the size of the observation vector for a local analysis domain. This routine is part of an OMI observation module.
    28  * `U_prepoststep`: [[BR]]The name of the pre/poststep routine as in `PDAF_get_state`
    29  * `U_next_observation`: [[BR]]The name of a user supplied routine that initializes the variables `nsteps`, `timenow`, and `doexit`. The same routine is also used in `PDAF_get_state`.
     26 * `U_init_dim_l`: [[BR]]The name of the user-supplied routine that provides the state dimension for a local analysis domain
     27 * `U_init_dim_obs_l_pdafomi`: [[BR]]The name of the user-supplied routine that initializes the size of the observation vector for a local analysis domain. This routine is part of an OMI observation module.
     28 * `U_prepoststep`: [[BR]]The name of the user-supplied pre/poststep routine as in `PDAF_get_state`
     29 * `U_next_observation`: [[BR]]The name of the user-supplied routine that initializes the variables `nsteps`, `timenow`, and `doexit`. The same routine is also used in `PDAF_get_state`.
    3030 * `status`: [[BR]]The integer status flag. It is zero, if the routine is exited without errors.
    3131