Changes between Initial Version and Version 1 of Porting_to_OMI

Nov 23, 2020, 2:55:42 PM (2 years ago)



  • Porting_to_OMI

    v1 v1  
     1= Porting an exiating implementation to OMI =
     3If you have an implementation of the data assimilation with PDAF without OMI, you can port it to OMI with the following steps:
     51.      Install the current PDAF version which includes the OMI functionality (V1.16 or later)
     61.      In mod_assimilation declare an array `coords_l` for the coordinates of the local analysis domain. Then fill `coords_l` in `init_dim_l_pdaf`. These coordinates are later used in `init_dim_obs_l_pdafomi`.
     71.      Copy the template file `callback_obs_pdafomi.F90` to your code directory.
     81.      In `assimilate_pdaf` replace the call(s) to PDAF_put_state_X or PDAF_assimilate_X by the calls to PDAFomi_put_state_local/global or PDAFomi_assimilate_local/global (You can copy this from the template files in templates/)
     91.      In `assimilate_pdaf` further replace the declaration of the 'EXTERNAL' subroutines following the template (several of the routines are no longer present with PDAF-OMI, while those that remain now have the suffix `_pdafomi` (like init_dim_obs_pdafomi)
     105.      For each observation type implement an obs-module as described in the [wiki:OMI_observation_modules documention on the observation modules]
     117.      Add a call to `deallocate_obs_pdafomi()` are the end of your routine `prepoststep`.
     128.      Adapt the compilation to also compile `callback_obs_pdafomi.F90` and the obs-modules.
     139.      Modify the compilation such that the include-directory of your PDAF installation is defined as an include directory (i.e. specify -IPDAF_ROOT/include where PDAF_ROOT is the root directory of your PDAF installation.)