Changes between Version 50 and Version 51 of ImplementAnalysislseik


Ignore:
Timestamp:
Jan 21, 2016, 4:20:35 PM (5 years ago)
Author:
lnerger
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • ImplementAnalysislseik

    v50 v51  
    246246The routine is called during the loop over the local analysis domains. In the algorithm, the product of the inverse of the observation error covariance matrix with some matrix has to be computed. For the SEIK filter this matrix holds the observed part of the ensemble perturbations for the local analysis domain of index `domain_p`. The matrix is provided as `A_l`. The product has to be given as `C_l`.
    247247
    248 This routine is also the place to perform observation localization. To initialize a vector of weights, the routine `PDAF_local_weights` can be called. The procedure is used in the example implementation and also demonstrated in the template routine.
     248This routine is also the place to perform observation localization, i.e. weighting of observations by modifying the observation error covariance matrix according to the distance of an observation from the local analysis domain. To initialize a vector of weights, the routine `PDAF_local_weight` can be called. The procedure is used in the example implementation and also demonstrated in the template routine.
    249249
    250250Hints: