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A baroclinic quasigeostrophic open ocean modelA baroclinic quasigeostrophic open ocean model is presented, calibrated by a series of test problems, and demonstrated to be feasible and efficient for application to realistic mid-oceanic mesoscale eddy flow regimes. Two methods of treating the depth dependence of the flow, a finite difference method and a collocation method, are tested and intercompared. Sample Rossby wave calculations with and without advection are performed with constant stratification and two levels of nonlinearity, one weaker than and one typical of real ocean flows. Using exact analytical solutions for comparison, the accuracy and efficiency of the model is tabulated as a function of the computational parameters and stability limits set; typically, errors were controlled between 1 percent and 10 percent RMS after two wave periods. Further Rossby wave tests with realistic stratification and wave parameters chosen to mimic real ocean conditions were performed to determine computational parameters for use with real and simulated data. Finally, a prototype calculation with quasiturbulent simulated data was performed successfully, which demonstrates the practicality of the model for scientific use.
Document ID
19830050148
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Miller, R. N.
(Harvard Univ. Cambridge, MA, United States)
Robinson, A. R.
(Harvard Univ. Cambridge, MA, United States)
Haidvogel, D. B.
(Harvard University Cambridge, MA, United States)
Date Acquired
August 11, 2013
Publication Date
April 1, 1983
Publication Information
Publication: Journal of Computational Physics
Volume: 50
ISSN: 0021-9991
Subject Category
Oceanography
Accession Number
83A31366
Funding Number(s)
CONTRACT_GRANT: NSG-5228
CONTRACT_GRANT: N00014-75-C-0225
Distribution Limits
Public
Copyright
Other

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