Changes between Version 4 and Version 5 of ImplementationConceptOffline


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Timestamp:
May 18, 2011, 2:33:13 PM (13 years ago)
Author:
lnerger
Comment:

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  • ImplementationConceptOffline

    v4 v5  
    22
    33== Online mode: Separating model integrations and the assimilation step ==
     4
     5
     6{{{
     7#!html
     8<div class="wiki-toc">
     9<h4>Implementation Concept</h4>
     10<ol><li>Main page</li>
     11<li><a href="GeneralImplementationConcept">General Concept</a></li>
     12<li><a href="ImplementationConceptOnline">Online Mode</a></li>
     13<li><a href="ImplementationConceptOffline">Offline Mode</a></li>
     14</ol>
     15</div>
     16}}}
    417
    518In case of the offline mode of PDAF, the ensemble integrations are performed by the numerical model without required changes. After all ensemble members are integrated to the time when observations are to be assimilated, the assimilation program containing PDAF is started. The program reads the files from the model for all ensemble members. Subsequently, the analysis step of the chosen filter algorithm is computed. Finally, the updated ensemble states are written into input or restart files of the model. This completes the analysis step such that the next forecast phase can be computed.