Changes between Version 273 and Version 274 of LnDevel


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Timestamp:
Apr 21, 2025, 12:24:26 PM (2 months ago)
Author:
lnerger
Comment:

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  • LnDevel

    v273 v274  
    177177* Added observation diagnostics module for OMI: This is a set of routines that give the user access to the observation information including the observed ensemble and the observed ensemble mean. In addition, there are routines computing statistics for the difference beetween the observations and the observed ensemble mean.
    178178* New routines to set parameters for PDAF: Before the parameters were all set in the call to PDAF_init. Now there are new routines PDAF_set_iparam and PDAF_set_rparam to set selected parameters, without the need to specify all parameters. These routines make the specification of parameters for PDAF more flexible and can also be used during a run to change parameter values.
     179* New interface for offline coupled assimilation: With the new routines PDAF_assim_offline_X the offline mode is now clearly separated from the online coupling.
    179180* Revision of the initialization of observations: Now the observations are initialized before the actual analysis step is computed. Also the observation operator is called before the actual analysis step. This chane allows for the option to initialize observations before prepoststep_pdaf is called for the forecast ensemble. Related to this the screen output for the observations was revised and is displayed at a different place from before.
    180181* New PDAF3 interface: The selection of possible calls to PDAF*_put_state and PDAF*_assimilate has grown over the years since new functionality, in particular PDAF-OMI and PDAFlocal, required a new interfaces. We now defined a new standard interface in which a single routine (PDAF3_assimilate) can execute all available filter methods for the case of a diagonal observation error covariance matrix. The routine leverages the latest features that were introduced in previous PDAF releases to allow for a minimum number of arguments. There is also the routine PDAF3_put_state, which is now mainly recommended when the offline mode is used.