کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6963331 1452282 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A simple method for integrating a complex model into an ensemble data assimilation system using MPI
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزار
پیش نمایش صفحه اول مقاله
A simple method for integrating a complex model into an ensemble data assimilation system using MPI
چکیده انگلیسی
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 × 108 The overheads added by using this implementation strategy in a coupled ocean-atmosphere climate model are shown to be an order of magnitude smaller than the addition of correlated stochastic random errors necessary for some nonlinear data assimilation techniques.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Modelling & Software - Volume 68, June 2015, Pages 122-128
نویسندگان
, ,