Articles | Volume 17, issue 5
Research article
06 Oct 2021
Research article |  | 06 Oct 2021

Atmospherically forced sea-level variability in western Hudson Bay, Canada

Igor A. Dmitrenko, Denis L. Volkov, Tricia A. Stadnyk, Andrew Tefs, David G. Babb, Sergey A. Kirillov, Alex Crawford, Kevin Sydor, and David G. Barber

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Cited articles

Andrews, J., Babb, D., and Barber, D. G.: Climate change and sea ice: Shipping accessibility on the marine transportation corridor through Hudson Bay and Hudson Strait (1980–2014), Elem. Sci. Anth., 5, 15,, 2017. 
CLS-DOS: Validation of altimeter data by comparison with tide gauge measurements: yearly report 2016, Ref. CLS-DOS-17-0016, available at: (last access: 26 August 2021), 2016. 
CMEMS: Global Ocean Gridded L4 Sea Surface Heights And Derived Variables Reprocessed (1993–ongoing) [data set], available at:, last access: 30 September 2021. 
Copernicus Climate Change Service (C3S): ERA5: Fifth generation of ECMWF atmospheric reanalyses of the global climate, Copernicus Climate Change Service Climate Data Store (CDS), available at:!/home (last access: 26 August 2021), 2017. 
Déry, S. J., Stieglitz, M., McKenna, E. C., and Wood, E. F.: Characteristics and trends of river discharge into Hudson, James, and Ungava Bays, 1964–2000, J. Climate, 18, 2540–2557,, 2005. 
Short summary
Significant trends of sea ice in Hudson Bay have led to a considerable increase in shipping activity. Therefore, understanding sea level variability is an urgent issue crucial for safe navigation and coastal infrastructure. Using the sea level, atmospheric and river discharge data, we assess environmental factors impacting variability of sea level at Churchill. We find that it is dominated by wind forcing, with the seasonal cycle generated by the seasonal cycle in atmospheric circulation.