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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

Citation

Meneghello, G and Doddridge, E and Marshall, J and Scott, J and Campin, J-M, 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 pp. 269-277. ISSN 0022-3670 (2020) [Refereed Article]

Copyright Statement

© Copyright 2020 American Meteorological Society

DOI: doi:10.1175/JPO-D-18-0223.1

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 interannual time scales, with eddy processes becoming evident only on the longest, decadal time scales.

Item Details

Item Type:Refereed Article
Keywords:sea ice, dynamics, Arctic, Beaufort Gyre, Ekman pumping/transport, atmosphere-ocean interaction
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Physical oceanography
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Understanding climate change
Objective Field:Understanding climate change not elsewhere classified
UTAS Author:Doddridge, E (Dr Edward Doddridge)
ID Code:138222
Year Published:2020
Web of Science® Times Cited:8
Deposited By:Oceans and Cryosphere
Deposited On:2020-03-27
Last Modified:2020-07-24
Downloads:0

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