Atmospheric Forcing Drives the Winter Sea Ice Thickness Asymmetry of Hudson Bay

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dc.contributor.authorKirillov, Sergey
dc.contributor.authorBabb, David
dc.contributor.authorDmitrenko, Igor
dc.contributor.authorLandy, Jack
dc.contributor.authorLukovich, Jennifer V.
dc.contributor.authorEhn, Jens
dc.contributor.authorSydor, Kevin
dc.contributor.authorBarber, David
dc.contributor.authorStroeve, Julienne
dc.contributor.authorKirillov, Serg
dc.date.accessioned2020-08-17T22:49:24Z
dc.date.available2020-08-17T22:49:24Z
dc.date.issued2020-01-30
dc.date.submitted2020-08-17T22:49:24Zen_US
dc.description.abstractRecently, we highlighted the presence of a strong west‐east asymmetry in sea ice thickness across Hudson Bay that is driven by cyclonic circulation. Building on this work, we use satellite altimetry and a unique set of in situ observations of ice thickness from three moored upward looking sonars to examine the role of atmospherically driven ice dynamics in producing contrasting regional ice thickness patterns. Ultimately, north‐northwesterly winds coupled with numerous reversals during winter 2016/2017 led to thicker ice in southern Hudson Bay, while enhanced west‐northwesterly winds during winter 2017/2018 led to thicker ice in eastern Hudson Bay that delayed breakup and onset of the summer shipping season to coastal communities. Extending the analysis over the 40‐year satellite observation period, we find that these two different patterns of atmospheric forcing alter the timing of breakup by 30 days in eastern Hudson Bay and offer some skill in seasonal predictions of breakup.en_US
dc.description.sponsorshipNatural Sciences and Engineering Council of Canada (NSERC), Manitoba Hydro, the Canada Excellence Research Chair (CERC) program, and the Canada Research Chairs (CRC) programen_US
dc.identifier.citationKirillov, S., Babb, D., Dmitrenko, I., Landy, J., Lukovich, J., Ehn, J., Sydor, K., Barber, D., Stroeve, J., 2020. Atmospheric forcing drives the winter sea ice thickness asymmetry of Hudson Bay. J. Geophys. Res.: Oceans, 125, e2019JC015756. https://doi.org/10.1029/2019JC015756.en_US
dc.identifier.doi10.1029/2019JC015756
dc.identifier.urihttp://hdl.handle.net/1993/34869
dc.language.isoengen_US
dc.publisherAmerican Geophysical Unionen_US
dc.rightsopen accessen_US
dc.subjectHudson Bayen_US
dc.subjectatmospheric forcingen_US
dc.subjectsea ice thicknessen_US
dc.subjectice dynamicsen_US
dc.titleAtmospheric Forcing Drives the Winter Sea Ice Thickness Asymmetry of Hudson Bayen_US
dc.typeArticleen_US
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