Changes between Version 14 and Version 15 of ReleaseNotes


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Timestamp:
Feb 12, 2012, 10:00:20 PM (7 years ago)
Author:
lnerger
Comment:

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  • ReleaseNotes

    v14 v15  
    77 * Added Error Subspace Transform Kalman filter (ESTKF) and localized variant LESTKF. In addition a variant of the SEIK filter with symmetric square-root and explicit ensemble transformation is now available. (These filers have been introduced in the paper: "A unification of ensemble square-root filters" by L. Nerger, T. Janjic, J. Schroeter, and W. Hiller to appear in the Monthly Weather Review in 2012. ([http://pdaf.awi.de/files/SEIK-ETKF-ESTKF.pdf accepted manuscript])
    88 * Added support to specify the type of the matrix square root in the SEIK filter. (Cholesky decomposition or symmetric square root based on singular value decomposition. The effects of these square root are also discussed in the paper mentioned above.)
    9  * Revised the internal structure of PDAF to simplify the implementation of additional filters.
     9 * Revised the internal structure of PDAF to simplify the implementation of additional filters. (See the [AddFilterAlgorithm page about adding a filter algorithm] for details.)
    1010 * Added support to compile for either double or single precision.
    1111 * Clean-up of PDAF's internal timers and memory allocation counting.