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A stable and accura...
A stable and accurate data assmimilation technique using multiple penalty terms in space and time
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- Frenander, Hannes (author)
- Linköpings universitet,Beräkningsmatematik,Tekniska fakulteten
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- Nordström, Jan (author)
- Linköpings universitet,Beräkningsmatematik,Tekniska fakulteten
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(creator_code:org_t)
- Linköping : Linköping University Electronic Press, 2016
- English 15 s.
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Series: LiTH-MAT-R, 0348-2960 ; 18
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Abstract
Subject headings
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- A new method for data assimilation based on weak imposition of external data is introduced. The technique is simple, easy to implement, and the resulting numerical scheme is unconditionally stable. Numerical experiments show that the error growth naturally present in long term simulations can be prevented by using the new technique.
Subject headings
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Keyword
- data assimilation
- summation-by-parts
- weak boundary conditions
- multiple penalties
- stability
- finite differences
Publication and Content Type
- vet (subject category)
- rap (subject category)
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