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          Institute: MPI für Meteorologie     Collection: Ocean in the Earth System     Display Documents



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ID: 510665.0, MPI für Meteorologie / Ocean in the Earth System
On the use of discrete adjoints in goal error estimation for shallow water equations
Authors:Rauser, F.; Riehme, J.; Leppkes, K.; Korn, P.; Naumann, U.
Language:English
Date of Publication (YYYY-MM-DD):2010
Title of Journal:Procedia Computer Science
Volume:1
Start Page:107
End Page:115
Review Status:not specified
Audience:Not Specified
Abstract / Description:Goal oriented dual weight error estimation has been used in context of computational fluid dynamics for several years. The adaptation of this method to geophysical models is the subject of this paper. A differentiation-enabled prototype of the NAG Fortran compiler is used to generate a discrete adjoint version of such a geophysical model and allows to compute the required goal sensitivities. Numerical results are presented for a shallow water configuration of the Icosahedral Non-hydrostatic General Circulation Model ( ICON). A special treatment of the underlying linear solver is discussed yielding improved scalability of this approach and a significant reduction in memory consumption and runtime. (C) 2010 Published by Elsevier Ltd.
External Publication Status:published
Document Type:Article
Communicated by:Carola Kauhs
Affiliations:MPI für Meteorologie/Ocean in the Earth System
Identifiers:DOI:10.1016/j.procs.2010.04.013
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