Changes between Version 10 and Version 11 of ImplementAnalysisenkf


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Timestamp:
Dec 3, 2016, 6:46:02 PM (4 years ago)
Author:
lnerger
Comment:

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  • ImplementAnalysisenkf

    v10 v11  
    3535The EnKF implemented in PDAF follows the original EnKF by Evensen (1994) including the correction for perturbed observations (Burgers et al. 1998). The EnKF implemented in PDAF is reviewed by Nerger et al (2005) and described in more detail by Nerger (2004). (See the [PublicationsandPresentations page on publications and presentations] for publications and presenations involving and about PDAF)
    3636
    37 There is no localized variant of the EnKF in PDAF. In our studies (Nerger et al. 2005, Neger et al. 2007), the EnKF showed performance deficiencies compared to the SEIK filter. Due to this, we focused more on the SEIK filter and the ETKF after these comparison studies. For real applications, we generally recommend using SEIK or ETKF, or their local variants LSEIK or LETKF.
     37With verison 1.12 a [wiki:ImplementAnalysislenkf localized variant of the EnKF] was added to PDAF. However, in our studies (Nerger et al. 2005, Nerger et al. 2007), the EnKF showed performance deficiencies compared to the SEIK filter. Due to this, we focused more on the SEIK filter and the ETKF and ESTKF after these comparison studies. For real applications, we generally recommend using ESTKF or ETKF, or their local variants LESTKF or LETKF.
    3838
    3939== `PDAF_assimilate_enkf` ==