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Computational dispersion properties of horizontal staggered grids for atmospheric and ocean modelsThe computational dispersion properties of horizontally and time-horizontally staggered grids utilizing corresponding centered-difference techniques for approximation of the adjustment, or gravity wave equations, are examined in terms of their group velocity characteristics. Results are acquired for oceanic and atmospheric models, the former being characterized by a much smaller Rossby radius of deformation. For all grids considered additional filtering is required to control and even eliminate waves with poor computational dispersion characteristics. Computational dispersion properties along with other computational characteristics and requirements give some guidance for an optimal selection of an appropriate grid for an ocean or atmospheric model.
Document ID
19910062171
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Fox-Rabinovitz, Michael S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1991
Publication Information
Publication: Monthly Weather Review
Volume: 119
ISSN: 0027-0644
Subject Category
Numerical Analysis
Accession Number
91A46794
Distribution Limits
Public
Copyright
Other

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