Revisiting the Circulation of Hudson Bay: Evidence for a Seasonal Pattern

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dc.contributor.authorRidenour, Natasha A.
dc.contributor.authorHu, Xianmin
dc.contributor.authorSydor, Kevin
dc.contributor.authorMyers, Paul G.
dc.contributor.authorBarber, David G.
dc.date.accessioned2020-07-14T20:24:37Z
dc.date.available2020-07-14T20:24:37Z
dc.date.issued2019-04-08
dc.date.submitted2020-07-14T20:24:37Zen_US
dc.description.abstractThe Hudson Bay Complex is the outlet for many Canadian rivers, receiving roughly 900 km3/year of river runoff. Historically, studies found a consistent cyclonic flow year-round in Hudson Bay, due to the geostrophic boundary current induced by river discharge and cyclonic wind forcing that was supported by available observations at that time. Using a high-resolution ocean general circulation model, we show that in summer, the mean circulation is not cyclonic but consists of multiple small cyclonic and anticyclonic features, with the mean flow directed through the center of the bay. Absolute Dynamic Topography and velocity observations also show this seasonal flow pattern. We find that this summer circulation is driven by geostrophic currents, generated by steric height gradients, which are induced by increased river discharge during the spring freshet, and reinforced by anticyclonic seasonal wind patterns.en_US
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada and Manitoba Hydroen_US
dc.identifier.citationRidenour, N. A., Hu, X., Sydor, K., Myers, P. G., & Barber, D. G. (2019). Revisiting the circulation of Hudson Bay: Evidence for a seasonal pattern. Geophysical Research Letters, 46, 3891–3899. https://doi.org/10.1029/ 2019GL082344en_US
dc.identifier.doi10.1029/2019GL082344
dc.identifier.urihttp://hdl.handle.net/1993/34777
dc.language.isoengen_US
dc.publisherAmerican Geophysical Unionen_US
dc.rightsopen accessen_US
dc.subjectcirculationen_US
dc.subjectHudson Bayen_US
dc.subjectocean currenten_US
dc.subjectriver dischargeen_US
dc.subjectseasonal patternen_US
dc.titleRevisiting the Circulation of Hudson Bay: Evidence for a Seasonal Patternen_US
dc.typeTechnical Reporten_US
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