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J. R. Luyten, J. Pedlosky, and H. Stommel

Fig.11] are generally consistent with our conjecture thatthere are at least two regions in the thermocline ofthe North Atlantic--one connected directly to northern latitudes where the fluid is ventilated to the atmosphere and forced downward by Ekman pumping,conserving potential vorticity after subduction, andanother region which is not ventilated to the atmosphere. A third region of the model flow was describedabove, in which the potential vorticity had a constantvalue. The existence of such a

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William K. Dewar and Rui X. Huang

interdecadal frequencies. Deser et al. (1996) have recently described the evolution of large-scale, low-frequency, (that is, decadal) buoyant anomalies in the North Pacific. Because such anomalies are of importance to climate through their effect on sea surface temperature, the study of the time-dependent large scale is strongly motivated. The objective of this paper is to analytically and numerically examine simple models of the time-dependent ventilated thermocline, with a view toward explaining the

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Michael D. Cox and Kirk Bryan

674 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 14A Numerical Model of the Ventilated Thermocline MICHAEL D. COX AND KIRK BRYANGeophysical Fluid Dynamics Laboratory/NOA~4, Princeton University, Princeton. NJ 08542(Manuscript received 14 July 1983, in final form I February 1984) A steady state numerical solution is found for an idealized, rectangular ocean basin driven by wind andsurface buoyancy flux. A

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Joseph Pedlosky

JUNE 1986 JOSEPH PEDLOSKY 1077The Buoyancy and Wind-Driven Ventilated Thermocline* JOSEPH PEDLOSKYWoods Hole Oceanographic Institution, Woods Hole, MA 02543(Manuscript received 1 November 1985, in final form 27 December 1985)ABSTRACTAn analytical study of the combined wind-driven and buoyancy-driven thermocline problem is presented.The analysis is an extension of the ventilated thermocline model of Luyten

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Peter D. Killworth

NOVEMBER 1987 PETER D. KILLWORTH 1925A Continuously Stratified Nonlinear Ventilated Thermocline PETER D. KILLWORTHHooke Institute for Atmospheric Research, Department of Atmospheric Physics, University of Oxford, Oxford OX1 3PU and Institute of Oceanographic Sciences, Wormley, Godalming, Surrey (Manuscript received 14 April 1986, in final form 3 February 1987

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L. B. Kuntz and D. P. Schrag

regions, did not trace subsurface waters to their origin at the surface, and could not capture the dynamical variability of the system. Later studies identified a subtropical origin of waters entering the tropical Pacific through subtropical cells (STCs). The theory of ventilated thermocline transport provided a simplified analytical framework to explain the STCs’ circulation pathway, positing that waters subducted in the subtropics propagate along isopycnals to the equatorial Pacific, feeding into

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Atsushi Kubokawa

, the potential vorticity in the thermocline is distorted from zonal uniformity because of the parcel-wise conservation of the potential vorticity (PV), as demonstrated in modern ocean circulation theories ( Luyten et al. 1983 ; Young and Rhines 1982 ). According their theories, ocean gyre can be divided into three dynamically different zones: shadow, ventilated, and homogenized PV pool. Liu (1993) and Liu and Pedlosky (1994) studied the response of a two-layer oceanic gyre consisting of these

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Rui Xin Huang

OCTOBER 1990 RUI XIN HUANG 1599Matching a Ventilated Thermocline Model with Inertial Western Boundary Currents* Rui XIN HUANGDepartment of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts(Manuscript received 7 July 1989, in final form 18 April 1990) ABSTRACT A two-layered ventilated thermocline model is matched with

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Richard G. Williams

SEPTEMBER 1989 RICHARD G. WILLIAMS 1255The Influence of Air-Sea Interaction on the Ventilated Thermocline RICHARD G. WILLIAMSSpace and Atmospheric Physics Group, Department of Physics, Imperial College, London, UK(Manuscript received 23 November 1988, in final form 16 March 1989)ABSTRACT Air-sea interaction influences the ventilated thermocline by forcing the mixed layer

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Michael D. Cox

1312 JOURNAL OF PHYSICAL OCEANOGRAPHY VOLUME 15An Eddy Resolving Numerical Model of the Ventilated Thermocline MICHAEL D. CoxGeophy$ica! Fluid Dynamics Laboratory/NOAA, Princeton University, Princeton, NJ 08542(Manuscript received 15 January 1985, in final form 22 May 1985)ABSTRACT A three-dimensional, primitive equation numerical model is used to study the effects of mesoseale eddieswithin the

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