Changes between Version 46 and Version 47 of PDAF_OMI_Overview


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Timestamp:
Sep 19, 2024, 4:33:16 PM (7 hours ago)
Author:
lnerger
Comment:

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  • PDAF_OMI_Overview

    v46 v47  
    128128
    129129The current version of PDAF-OMI has a few limitations
    130  - OMI currently only supports diagonal observation error covariance matrices (though, the observation variances can vary).
     130 - PDAF V2.3 added support for non-diagonal observation error covariance matrices **R** while older versions only supported diagonal observation error covariance matrices  (though, the observation variances can vary). Using nondiagonal **R**-matrices, requires a user-supplied code for operations relating to **R** (see the documentation on the implemenetation for [wiki:OMI_nondiagonal_observation_error_covariance_matrices using non-diagonal R-matrices with OMI])
    131131 - OMI currently only includes observation operators with linear interpolation.
    132132 - We have not tested interoperability with other programming languages. Generally Fortran derived data types and C structs should be compatible. Obviously, taking the Fortran routines and calling C functions to perform the actual initializations will work.