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Author
Ansong, J.K. ; Arbic, B.K. ; Simmons, H.L. ; Alford, M.H. ; Buijsman, M.C. ; Timko, P.G. ; Richman, J.G. ; Shriver, J.F. ; Wallcraft, A.J.
Title
Geographical Distribution of Diurnal and Semidiurnal Parametric Subharmonic Instability in a Global Ocean Circulation Model
Type
$loc['typeJournal Article']
Year
2018
Publication
Journal of Physical Oceanography
Abbreviated Journal
J. Phys. Oceanogr.
Volume
48
Issue
6
Pages
1409-1431
Keywords
Baroclinic flows ; Internal waves ; Nonlinear dynamics ; Ocean dynamics ; Baroclinic models ; Ocean models
Abstract
The evidence for, baroclinic energetics of, and geographic distribution of parametric subharmonic instability (PSI) arising from both diurnal and semidiurnal tides in a global ocean general circulation model is investigated using 1/12.5° and 1/25° simulations that are forced by both atmospheric analysis fields and the astronomical tidal potential. The paper examines whether PSI occurs in the model, and whether it accounts for a significant fraction of the tidal baroclinic energy loss. Using energy transfer calculations and bispectral analyses, evidence is found for PSI around the critical latitudes of the tides. The intensity of both diurnal and semidiurnal PSI in the simulations is greatest in the upper ocean, consistent with previous results from idealized simulations, and quickly drops off about 5° from the critical latitudes. The sign of energy transfer depends on location; the transfer is positive (from the tides to subharmonic waves) in some locations and negative in others. The net globally integrated energy transfer is positive in all simulations and is 0.5%�10% of the amount of energy required to close the baroclinic energy budget in the model. The net amount of energy transfer is about an order of magnitude larger in the 1/25° semidiurnal simulation than the 1/12.5° one, implying the dependence of the rate of energy transfer on model resolution.
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ISSN
0022-3670
ISBN
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Approved
$loc['no']
Call Number
COAPS @ user @
Serial
976
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Author
Griffies, S.M. ; Biastoch, A. ; Böning, C. ; Bryan, F. ; Danabasoglu, G. ; Chassignet, E.P. ; England, M.H. ; Gerdes, R. ; Haak, H. ; Hallberg, R.W. ; Hazeleger, W. ; Jungclaus, J. ; Large, W.G. ; Madec, G. ; Pirani, A. ; Samuels, B.L. ; Scheinert, M. ; Gupta, A.S. ; Severijns, C.A. ; Simmons, H.L. ; Treguier, A.M. ; Winton, M. ; Yeager, S. ; Yin, J.
Title
Coordinated Ocean-ice Reference Experiments (COREs)
Type
$loc['typeJournal Article']
Year
2009
Publication
Ocean Modelling
Abbreviated Journal
Ocean Modelling
Volume
26
Issue
1-2
Pages
1-46
Keywords
Global ocean-ice modelling ; Model comparison ; Experimental design ; Atmospheric forcing ; Analysis diagnostics ; Circulation stability ; World ocean
Abstract
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Series Editor
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ISSN
1463-5003
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Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
401
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Author
MacKinnon, J.A. ; Alford, M.H. ; Ansong, J.K. ; Arbic, B.K. ; Barna, A. ; Briegleb, B.P. ; Bryan, F.O. ; Buijsman, M.C. ; Chassignet, E.P. ; Danabasoglu, G. ; Diggs, S. ; Griffies, S.M. ; Hallberg, R.W. ; Jayne, S.R. ; Jochum, M. ; Klymak, J.M. ; Kunze, E. ; Large, W.G. ; Legg, S. ; Mater, B. ; Melet, A.V. ; Merchant, L.M. ; Musgrave, R. ; Nash, J.D. ; Norton, N.J. ; Pickering, A. ; Pinkel, R. ; Polzin, K. ; Simmons, H.L. ; St. Laurent, L.C. ; Sun, O.M. ; Trossman, D.S. ; Waterhouse, A.F. ; Whalen, C.B. ; Zhao, Z.
Title
Climate Process Team on Internal-Wave Driven Ocean Mixing
Type
$loc['typeJournal Article']
Year
2017
Publication
Bulletin of the American Meteorological Society
Abbreviated Journal
Bull. Amer. Meteor. Soc.
Volume
98
Issue
11
Pages
2429-2454
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0003-0007
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Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
66
Permanent link to this record