= PDAFomi_set_localization =

This page documents the routine `PDAFomi_set_localization` of PDAF-OMI.

This routine is used for the case that a user implements a user-provided alternative for the routine `PDAFomi_init_dim_obs_l`, which initializes the local observation information for PDAF-OMI in `thisobs_l` for a single local analysis domain.

This routine is for isotropic localization (for non-isotropic localization see [wiki:PDAFomi_set_localization_noniso])

The routine has to be called in `init_dim_obs_l_OBSTYPE` in each observation module if a domain-localized filter (LESTKF/LETKF/LNETF/LSEIK/LKNETF)is used. 

|| See the [wiki:OMI_search_local_observations page on user-provided initialization of local observations] for the full description of a user-provided routine to intialize local observations. ||

The interface is:
{{{
  SUBROUTINE PDAFomi_set_localization(thisobs_l, cradius, sradius, locweight)

    TYPE(obs_l), INTENT(inout) :: thisobs_l  ! Data type with local observation
    REAL, INTENT(in) :: cradius              ! Localization cut-off radius
    REAL, INTENT(in) :: sradius              ! Support radius of localization function
    INTEGER, INTENT(in) :: locweight         ! Type of localization function
}}}

'''Notes:'''
 * The arguments are usually the same inputs as used when calling `PDAFomi_init_dim_obs_l`.