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Shallow water experiments using an improved Kreiss-Oliger 2-4 schemeThe Abarbanel-Gottleib (AG) modification of the Kreiss-Oliger (KO) scheme is applied to a global 1-level shallow water model and the results compared to results obtained using the standard KO scheme. The standard KO scheme consists of the second order leapfrog scheme for time derivatives and fourth order space differencing for spatial derivatives. The AG scheme modifies the KO scheme in a manner similar to that done by Wilson to the multidimensional leapfrog scheme, obtaining a 35-40% improvement of the maximum time step. Application of the AG scheme expands the domain of influence of the KO scheme by including off-axis grid points.
Document ID
19820017692
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Takacs, L. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Balgovind, R. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 10, 2013
Publication Date
December 1, 1981
Publication Information
Publication: Modeling and Simulation Facility: Res. Rev., 1980 - 1981
Subject Category
Meteorology And Climatology
Accession Number
82N25568
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19820017675Collected WorksModeling and simulation facility: Research review, 1980 - 1981
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