Changes between Version 2 and Version 3 of U_prodRinvA


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Timestamp:
Jan 21, 2016, 4:10:29 PM (8 years ago)
Author:
lnerger
Comment:

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  • U_prodRinvA

    v2 v3  
    33The page document the user-supplied call-back routine `U_prodRinvA`.
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    5 The routine `U_prodRinvA` is a call-back routine that has to be provided by the user. In the simplified interface the predefined name of the routine is init_obs_pdaf, but in the full interface, the user can choose the name of the routine.
     5The routine `U_prodRinvA` is a call-back routine that has to be provided by the user. In the simplified interface the predefined name of the routine is `prodRinvA_pdaf`, but in the full interface, the user can choose the name of the routine.
    66The routine is used with all global filters and called during the analysis step. The purpose of the routine is to compute the product of the inverse of the observation error covariance matrix with some matrix '''A''' (as '''R^-1^''' x '''A'''). The matrix '''A''' holds an intermediate computing result of the filter analysis step. For the ESTKF this matrix holds the observed part of the ensemble perturbations. The matrix is provided as `A_p`. The product has to be returned in the array `C_p`.
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