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Exploring the role of the “Ice-Ocean governor” and mesoscale eddies in the equilibration of the Beaufort Gyre: lessons from observations

Author(s)
Meneghello, Gianluca; Doddridge, Edward; Marshall, John C.; Scott, Jeffery R.; Campin, Jean-Michel
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Abstract
Observations of Ekman pumping, sea surface height anomaly, and isohaline depth anomaly over the Beaufort Gyre are used to explore the relative importance and role of (i) feedbacks between ice and ocean currents, dubbed the “Ice-Ocean governor” and (ii) mesoscale eddy processes in the equilibration of the Beaufort Gyre. A two-layer model of the gyre is fit to observations and used to explore the mechanisms governing the gyre evolution from the monthly to the decennial time scale. The Ice-Ocean governor dominates the response on inter-annual timescales, with eddy processes becoming evident only on the longest, decadal timescales. Keywords: Ocean; Arctic; Eddies; Ekman pumping/transport; Atmosphere-ocean interaction
Date issued
2020-01
URI
https://hdl.handle.net/1721.1/124857
Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Journal
Journal of Physical Oceanography
Publisher
American Meteorological Society
Citation
Meneghello, Gianluca, et al. "Exploring the role of the “Ice-Ocean governor” and mesoscale eddies in the equilibration of the Beaufort Gyre: lessons from observations" Journal of Physical Oceanography, 50,1 (January 2020): 269-277. © 2019 American Meteorological Society.
Version: Final published version
ISSN
1520-0485
0022-3670

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