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Title:	Two-Way Feedback Interaction Between the Thermohaline and Wind-Driven Circulations
Author:	MacMynowski, Douglas G.; Tziperman, Eli Note: Order does not necessarily reflect citation order of authors.
Citation:	MacMynowski, Douglas G., and Eli Tziperman. 2006. Two-way feedback interaction between the thermohaline and wind-driven circulations. Journal of Physical Oceanography 36(5): 914-929.
Access Status:	At the direction of the depositing author this work is not currently accessible through DASH.
Full Text & Related Files:	Tziperman_TwowayFeedbackInteract.pdf (741.2Kb; PDF)
Abstract:	The thermohaline circulation (THC) affects the meridional atmospheric temperature gradient and therefore the atmospheric wind and the wind-driven ocean circulation. The wind-driven circulation (WDC), in turn, affects the THC by the advection of salinity anomalies into deep-water formation sites. This paper considers this two-way coupling between the WDC and THC using a simple box-type model and analysis tools from engineering feedback control. The two-way feedback can have a significant effect on the dynamics of the coupled system. For a reasonable choice of parameters, the feedback destabilizes the THC equilibrium for low freshwater forcing. For higher freshwater forcing, the feedback results in a new stable equilibrium instead of the large amplitude oscillation that develops without feedback. It is expected that the analysis approach used here may be broadly applicable to the study of feedback interconnections of other climate systems as well.
Published Version:	http://dx.doi.org/10.1175/JPO2902.1
Citable link to this page:	http://nrs.harvard.edu/urn-3:HUL.InstRepos:3441719

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  Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University

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