Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex
Hydroelectric development and regulation have modified the temporal and spatial distribution of runoff entering the Hudson Bay Complex (HBC). To understand the impacts and future of regulation in this region, the numerical ocean model, NEMO, run with the Arctic and Northern Hemispheric Atlantic (ANH...
Published in: | Journal of Marine Systems |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2019
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Online Access: | https://hdl.handle.net/1983/50b16f3f-fd1d-4dba-b4bf-dcf95f6d997a https://research-information.bris.ac.uk/en/publications/50b16f3f-fd1d-4dba-b4bf-dcf95f6d997a https://doi.org/10.1016/j.jmarsys.2019.04.002 https://research-information.bris.ac.uk/ws/files/198646985/Full_text_PDF_accepted_author_manuscript_.pdf http://www.scopus.com/inward/record.url?scp=85065394335&partnerID=8YFLogxK |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/50b16f3f-fd1d-4dba-b4bf-dcf95f6d997a 2024-02-04T09:58:19+01:00 Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex Ridenour, Natasha A. Hu, Xianmin Jafarikhasragh, Shabnam Landy, Jack C. Lukovich, Jennifer V. Stadnyk, Tricia A. Sydor, Kevin Myers, Paul G. Barber, David G. 2019-08-01 application/pdf https://hdl.handle.net/1983/50b16f3f-fd1d-4dba-b4bf-dcf95f6d997a https://research-information.bris.ac.uk/en/publications/50b16f3f-fd1d-4dba-b4bf-dcf95f6d997a https://doi.org/10.1016/j.jmarsys.2019.04.002 https://research-information.bris.ac.uk/ws/files/198646985/Full_text_PDF_accepted_author_manuscript_.pdf http://www.scopus.com/inward/record.url?scp=85065394335&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Ridenour , N A , Hu , X , Jafarikhasragh , S , Landy , J C , Lukovich , J V , Stadnyk , T A , Sydor , K , Myers , P G & Barber , D G 2019 , ' Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex ' , Journal of Marine Systems , vol. 196 , pp. 48-64 . https://doi.org/10.1016/j.jmarsys.2019.04.002 Dynamics Freshwater Hudson Bay Complex Ocean modelling River runoff article 2019 ftubristolcris https://doi.org/10.1016/j.jmarsys.2019.04.002 2024-01-11T23:41:23Z Hydroelectric development and regulation have modified the temporal and spatial distribution of runoff entering the Hudson Bay Complex (HBC). To understand the impacts and future of regulation in this region, the numerical ocean model, NEMO, run with the Arctic and Northern Hemispheric Atlantic (ANHA) configuration, is used to model present day freshwater dynamics associated with river runoff and sea ice melt. The present work establishes the freshwater budget in each subregion of the HBC, in addition to evaluating the sensitivity to model resolution and estimates of river discharge forcing. It is shown that the annually averaged HBC freshwater budget is mainly a balance between river discharge and freshwater advected out of the region, while surface fluxes (ice melt and growth, and precipitation and evaporation) are the dominant term on seasonal time scales. Runoff forcing is found to impact the long term mean volume and freshwater fluxes out of the HBC, while increased resolution has minimal effect on these fluxes, with the exception of the Southampton–Baffin Island gate. Quantitative estimates of turbulent, mean, and Ekman components of freshwater exchange between the interior and boundary regions of Hudson Bay are also presented. We use offline Lagrangian passive tracers to estimate the HBC runoff residence time, which is as long as 32 years. Article in Journal/Newspaper Arctic Baffin Island Baffin Hudson Bay Sea ice University of Bristol: Bristol Research Arctic Baffin Island Hudson Hudson Bay Journal of Marine Systems 196 48 64 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
topic |
Dynamics Freshwater Hudson Bay Complex Ocean modelling River runoff |
spellingShingle |
Dynamics Freshwater Hudson Bay Complex Ocean modelling River runoff Ridenour, Natasha A. Hu, Xianmin Jafarikhasragh, Shabnam Landy, Jack C. Lukovich, Jennifer V. Stadnyk, Tricia A. Sydor, Kevin Myers, Paul G. Barber, David G. Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex |
topic_facet |
Dynamics Freshwater Hudson Bay Complex Ocean modelling River runoff |
description |
Hydroelectric development and regulation have modified the temporal and spatial distribution of runoff entering the Hudson Bay Complex (HBC). To understand the impacts and future of regulation in this region, the numerical ocean model, NEMO, run with the Arctic and Northern Hemispheric Atlantic (ANHA) configuration, is used to model present day freshwater dynamics associated with river runoff and sea ice melt. The present work establishes the freshwater budget in each subregion of the HBC, in addition to evaluating the sensitivity to model resolution and estimates of river discharge forcing. It is shown that the annually averaged HBC freshwater budget is mainly a balance between river discharge and freshwater advected out of the region, while surface fluxes (ice melt and growth, and precipitation and evaporation) are the dominant term on seasonal time scales. Runoff forcing is found to impact the long term mean volume and freshwater fluxes out of the HBC, while increased resolution has minimal effect on these fluxes, with the exception of the Southampton–Baffin Island gate. Quantitative estimates of turbulent, mean, and Ekman components of freshwater exchange between the interior and boundary regions of Hudson Bay are also presented. We use offline Lagrangian passive tracers to estimate the HBC runoff residence time, which is as long as 32 years. |
format |
Article in Journal/Newspaper |
author |
Ridenour, Natasha A. Hu, Xianmin Jafarikhasragh, Shabnam Landy, Jack C. Lukovich, Jennifer V. Stadnyk, Tricia A. Sydor, Kevin Myers, Paul G. Barber, David G. |
author_facet |
Ridenour, Natasha A. Hu, Xianmin Jafarikhasragh, Shabnam Landy, Jack C. Lukovich, Jennifer V. Stadnyk, Tricia A. Sydor, Kevin Myers, Paul G. Barber, David G. |
author_sort |
Ridenour, Natasha A. |
title |
Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex |
title_short |
Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex |
title_full |
Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex |
title_fullStr |
Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex |
title_full_unstemmed |
Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex |
title_sort |
sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the hudson bay complex |
publishDate |
2019 |
url |
https://hdl.handle.net/1983/50b16f3f-fd1d-4dba-b4bf-dcf95f6d997a https://research-information.bris.ac.uk/en/publications/50b16f3f-fd1d-4dba-b4bf-dcf95f6d997a https://doi.org/10.1016/j.jmarsys.2019.04.002 https://research-information.bris.ac.uk/ws/files/198646985/Full_text_PDF_accepted_author_manuscript_.pdf http://www.scopus.com/inward/record.url?scp=85065394335&partnerID=8YFLogxK |
geographic |
Arctic Baffin Island Hudson Hudson Bay |
geographic_facet |
Arctic Baffin Island Hudson Hudson Bay |
genre |
Arctic Baffin Island Baffin Hudson Bay Sea ice |
genre_facet |
Arctic Baffin Island Baffin Hudson Bay Sea ice |
op_source |
Ridenour , N A , Hu , X , Jafarikhasragh , S , Landy , J C , Lukovich , J V , Stadnyk , T A , Sydor , K , Myers , P G & Barber , D G 2019 , ' Sensitivity of freshwater dynamics to ocean model resolution and river discharge forcing in the Hudson Bay Complex ' , Journal of Marine Systems , vol. 196 , pp. 48-64 . https://doi.org/10.1016/j.jmarsys.2019.04.002 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.jmarsys.2019.04.002 |
container_title |
Journal of Marine Systems |
container_volume |
196 |
container_start_page |
48 |
op_container_end_page |
64 |
_version_ |
1789962749995909120 |