Forty years of JEBAR—the finding of the joint effect of baroclinicity and bottom relief for the modeling of ocean climatic characteristics

Sarkisyan, A. S.

doi:10.1134/s0001433806050021

Cited by 21 publications

(23 citation statements)

References 42 publications

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“…where b 5 f y ; J(p b , H) and J(E, 1/H) are the BPT and JEBAR terms, respectively (Sarkisyan and Ivanov 1971). The BPT is closely related to the near-bottom vertical velocity w b .…”

Section: Discussionmentioning

confidence: 99%

“…(A8) (see the appendix), by roughly an order of magnitude, are the topographic planetary Jacobian J(c, f/H) and joint effect of baroclinicity and bottom relief (JEBAR) terms (e.g., Hughes and de Cuevas (2001); Borowski et al 2002;Sarkisyan (2006); Olbers et al 2007). As pointed out by Borowski et al (2002), if one neglects the local wind stress curl, then the local PV balance of Eq.…”

Section: Dynamical Considerationsmentioning

confidence: 99%

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Using Eulerian and Lagrangian Approaches to Investigate Wind-Driven Changes in the Southern Ocean Abyssal Circulation

Spence

Sebille

Saenko

et al. 2013

Journal of Physical Oceanography

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This study uses a global ocean eddy-permitting climate model to explore the export of abyssal water from the Southern Ocean and its sensitivity to projected twenty-first-century poleward-intensifying Southern Ocean wind stress. The abyssal flow pathways and transport are investigated using a combination of Lagrangian and Eulerian techniques. In an Eulerian format, the equator-and poleward flows within similar abyssal density classes are increased by the wind stress changes, making it difficult to explicitly diagnose changes in the abyssal export in a meridional overturning circulation framework. Lagrangian particle analyses are used to identify the major export pathways of Southern Ocean abyssal waters and reveal an increase in the number of particles exported to the subtropics from source regions around Antarctica in response to the wind forcing. Both the Lagrangian particle and Eulerian analyses identify transients as playing a key role in the abyssal export of water from the Southern Ocean. Wind-driven modifications to the potential energy component of the vorticity balance in the abyss are also found to impact the Southern Ocean barotropic circulation.

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“…where b 5 f y ; J(p b , H) and J(E, 1/H) are the BPT and JEBAR terms, respectively (Sarkisyan and Ivanov 1971). The BPT is closely related to the near-bottom vertical velocity w b .…”

Section: Discussionmentioning

confidence: 99%

Section: Dynamical Considerationsmentioning

confidence: 99%

Using Eulerian and Lagrangian Approaches to Investigate Wind-Driven Changes in the Southern Ocean Abyssal Circulation

Spence

Sebille

Saenko

et al. 2013

Journal of Physical Oceanography

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“…However, abyssal currents do not vanish in general. A prevalent explanation of how the depth-averaged circulation interacts with variable bottom topography is due to the joint effects of baroclinicity and relief, or JEBAR (for an overview, see Sarkisyan (2006)) in which a term representing the cross product of the gradients of potential energy anomaly and inverse depth arises in the depth-averaged momentum equation. However, as noted by Cane et al (1998), JEBAR fails to give a true measure of the effect of topography on the circulation, clearly seen in the limit that the abyssal circulation vanishes ( Figure 11.6a) but the JEBAR "forcing" remains finite.…”

Section: Role Of Bottom Topographymentioning

confidence: 99%

Conceptual Models of the Wind-Driven and Thermohaline Circulation

Drijfhout

Marshall

Dijkstra

2013

International Geophysics

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“…One of our first studies on the calculation with ψ was indeed immediately understood by them. When the decisive role of JEBAR had been proven [12][13][14], more than fifty praisewor thy comments or simple recognitions of our priority appeared in papers and two books written by Cana dian, American, European, Japanese, and other researchers (for example, [15][16][17][18][19][20][21][22][23][24][25][26]). …”

Section: A 3 Function Of the Full Flux Of Baroclinic Ocean: Jebar Amentioning

confidence: 99%

A view of progress in the numerical modeling of physical characteristics of the World Ocean in the light of sixty-year experience

Sarkisyan

2015

Izv. Atmos. Ocean. Phys.

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In view of the 60th anniversary of the pioneering oceanographic work on the numerical modeling of dynamical characteristics of the ocean [1], the author has decided to present his view of the principal mile stones in the progress of the numerical modeling of climatic characteristics of the ocean. This progress is shown schematically and conventionally as a single a table consisting of two lines: (A) synthesis of measure ment data models and (B) theory and calculation of sea currents. Line A consists of the following stages: ref erence surface method, diagnostic method, diagnostics-adaptation, and four dimensional analysis. Line B is as follows: Ekman's school, numerical modeling of a barotropic and then baroclinic ocean, modeling of individual basins with high resolution, and modeling of the World Ocean with high resolution and allowance for ice cover. This paper briefly reviews and analyzes the results of each of the abovementioned stages. The author sympathizes with line A because he believes that the most realistic results for characteristics of scien tific interest are obtained by a synthesis of models and measurement data, with an optimal choice of the model integration time. Unfortunately, studies in both directions have often used unreasonably long integra tion times (50-100 years). In this case, models even with a high resolution (0.1° of grid spacing) become inad equate and analyze strange characteristics, such as meridional overturning or kinetic energy averaged over the entire column of the world ocean, which actually have no scientific significance.

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Forty years of JEBAR—the finding of the joint effect of baroclinicity and bottom relief for the modeling of ocean climatic characteristics

Cited by 21 publications

References 42 publications

Using Eulerian and Lagrangian Approaches to Investigate Wind-Driven Changes in the Southern Ocean Abyssal Circulation

Using Eulerian and Lagrangian Approaches to Investigate Wind-Driven Changes in the Southern Ocean Abyssal Circulation

Conceptual Models of the Wind-Driven and Thermohaline Circulation

A view of progress in the numerical modeling of physical characteristics of the World Ocean in the light of sixty-year experience

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