publication . Article . 2015

A simple method for integrating a complex model into an ensemble data assimilation system using MPI

Philip Browne;
Open Access English
  • Published: 01 Jun 2015 Journal: Environmental Modelling & Software (issn: 13648152, Copyright policy)
  • Publisher: The Authors. Published by Elsevier Ltd.
  • Country: United Kingdom
Abstract
This paper details a strategy for modifying the source code of a complex model so that the model may be used in a data assimilation context, and gives the standards for implementing a data assimilation code to use such a model. The strategy relies on keeping the model separate from any data assimilation code, and coupling the two through the use of Message Passing Interface (MPI) functionality. This strategy limits the changes necessary to the model and as such is rapid to program, at the expense of ultimate performance. The implementation technique is applied in different models with state dimension up to .2.7?i??108 The overheads added by using this implementa...
Subjects
arXiv: Physics::Atmospheric and Oceanic Physics
free text keywords: Data assimilation, Model coupling, MPI, Ecological Modelling, Environmental Science(all), Coupling, Order of magnitude, Nonlinear system, Message Passing Interface, Climate model, Computational science, Source code, media_common.quotation_subject, media_common, Computer science, Scaling
Related Organizations
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