A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas
A wind-driven, spatially coherent mode of nonseasonal, depth-independent variability in the Canadian inland seas (i.e., the collective of Hudson Bay, James Bay, and Foxe Basin) is identified based on Gravity Recovery and Climate Experiment (GRACE) retrievals, a tide-gauge record, and a barotropic mo...
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ftcopernicus:oai:publications.copernicus.org:os27107 2023-05-15T16:17:59+02:00 A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas Piecuch, C. G. Ponte, R. M. 2018-01-15 application/pdf https://doi.org/10.5194/os-11-175-2015 https://os.copernicus.org/articles/11/175/2015/ eng eng doi:10.5194/os-11-175-2015 https://os.copernicus.org/articles/11/175/2015/ eISSN: 1812-0792 Text 2018 ftcopernicus https://doi.org/10.5194/os-11-175-2015 2020-07-20T16:24:47Z A wind-driven, spatially coherent mode of nonseasonal, depth-independent variability in the Canadian inland seas (i.e., the collective of Hudson Bay, James Bay, and Foxe Basin) is identified based on Gravity Recovery and Climate Experiment (GRACE) retrievals, a tide-gauge record, and a barotropic model over 2003–2013. This dominant mode of nonseasonal variability is correlated with the North Atlantic Oscillation and is associated with net flows into and out of the Canadian inland seas; the anomalous inflows and outflows, which are reflected in mean sea level and bottom pressure changes, are driven by wind stress anomalies over Hudson Strait, probably related to wind setup, as well as over the northern North Atlantic Ocean, possibly mediated by various wave mechanisms. The mode is also associated with mass redistribution within the Canadian inland seas, reflecting linear response to local wind stress variations under the combined influences of rotation, gravity, and variable bottom topography. Results exemplify the usefulness of GRACE for studying regional ocean circulation and climate. Text Foxe Basin Hudson Bay Hudson Strait North Atlantic North Atlantic oscillation James Bay Copernicus Publications: E-Journals Foxe Basin ENVELOPE(-77.918,-77.918,65.931,65.931) Hudson Hudson Bay Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000) Ocean Science 11 1 175 185 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
A wind-driven, spatially coherent mode of nonseasonal, depth-independent variability in the Canadian inland seas (i.e., the collective of Hudson Bay, James Bay, and Foxe Basin) is identified based on Gravity Recovery and Climate Experiment (GRACE) retrievals, a tide-gauge record, and a barotropic model over 2003–2013. This dominant mode of nonseasonal variability is correlated with the North Atlantic Oscillation and is associated with net flows into and out of the Canadian inland seas; the anomalous inflows and outflows, which are reflected in mean sea level and bottom pressure changes, are driven by wind stress anomalies over Hudson Strait, probably related to wind setup, as well as over the northern North Atlantic Ocean, possibly mediated by various wave mechanisms. The mode is also associated with mass redistribution within the Canadian inland seas, reflecting linear response to local wind stress variations under the combined influences of rotation, gravity, and variable bottom topography. Results exemplify the usefulness of GRACE for studying regional ocean circulation and climate. |
format |
Text |
author |
Piecuch, C. G. Ponte, R. M. |
spellingShingle |
Piecuch, C. G. Ponte, R. M. A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas |
author_facet |
Piecuch, C. G. Ponte, R. M. |
author_sort |
Piecuch, C. G. |
title |
A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas |
title_short |
A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas |
title_full |
A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas |
title_fullStr |
A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas |
title_full_unstemmed |
A wind-driven nonseasonal barotropic fluctuation of the Canadian inland seas |
title_sort |
wind-driven nonseasonal barotropic fluctuation of the canadian inland seas |
publishDate |
2018 |
url |
https://doi.org/10.5194/os-11-175-2015 https://os.copernicus.org/articles/11/175/2015/ |
long_lat |
ENVELOPE(-77.918,-77.918,65.931,65.931) ENVELOPE(-70.000,-70.000,62.000,62.000) |
geographic |
Foxe Basin Hudson Hudson Bay Hudson Strait |
geographic_facet |
Foxe Basin Hudson Hudson Bay Hudson Strait |
genre |
Foxe Basin Hudson Bay Hudson Strait North Atlantic North Atlantic oscillation James Bay |
genre_facet |
Foxe Basin Hudson Bay Hudson Strait North Atlantic North Atlantic oscillation James Bay |
op_source |
eISSN: 1812-0792 |
op_relation |
doi:10.5194/os-11-175-2015 https://os.copernicus.org/articles/11/175/2015/ |
op_doi |
https://doi.org/10.5194/os-11-175-2015 |
container_title |
Ocean Science |
container_volume |
11 |
container_issue |
1 |
container_start_page |
175 |
op_container_end_page |
185 |
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1766004003751067648 |