Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves
Data from coastal tide gauges, oceanographic moorings, and a numerical model show that Arctic storm surges force continental shelf waves (CSWs) that dynamically link the circumpolar Arctic continental shelf system. These trains of barotropic disturbances result from coastal convergences driven by cr...
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Online Access: | https://doi.org/10.3389/fmars.2020.00509 https://doaj.org/article/0b63bbc0f5b44f9691a1db6bb108418b |
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ftdoajarticles:oai:doaj.org/article:0b63bbc0f5b44f9691a1db6bb108418b 2023-05-15T14:53:06+02:00 Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves Seth L. Danielson Tyler D. Hennon Katherine S. Hedstrom Andrey V. Pnyushkov Igor V. Polyakov Eddy Carmack Kirill Filchuk Markus Janout Mikhail Makhotin William J. Williams Laurie Padman 2020-07-01T00:00:00Z https://doi.org/10.3389/fmars.2020.00509 https://doaj.org/article/0b63bbc0f5b44f9691a1db6bb108418b EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmars.2020.00509/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2020.00509 https://doaj.org/article/0b63bbc0f5b44f9691a1db6bb108418b Frontiers in Marine Science, Vol 7 (2020) continental shelf wave Arctic storm surge sea level coastal trapped wave tide gauge Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2020 ftdoajarticles https://doi.org/10.3389/fmars.2020.00509 2022-12-31T15:02:15Z Data from coastal tide gauges, oceanographic moorings, and a numerical model show that Arctic storm surges force continental shelf waves (CSWs) that dynamically link the circumpolar Arctic continental shelf system. These trains of barotropic disturbances result from coastal convergences driven by cross-shelf Ekman transport. Observed propagation speeds of 600−3000 km day–1, periods of 2−6 days, wavelengths of 2000−7000 km, and elevation maxima near the coast but velocity maxima near the upper slope are all consistent with theoretical CSW characteristics. Other, more isolated events are tied to local responses to propagating storm systems. Energy and phase propagation is from west to east: ocean elevation anomalies in the Laptev Sea follow Kara Sea anomalies by one day and precede Chukchi and Beaufort Sea anomalies by 4−6 days. Some leakage and dissipation occurs. About half of the eastward-propagating energy in the Kara Sea passes Severnaya Zemlya into the Laptev Sea. About half of the eastward-propagating energy from the East Siberian Sea passes southward through Bering Strait, while one quarter is dissipated locally in the Chukchi Sea and another quarter passes eastward into the Beaufort Sea. Likewise, CSW generation in the Bering Sea can trigger elevation and current speed anomalies downstream in the Northeast Chukchi Sea of 25 cm and 20 cm s–1, respectively. Although each event is ephemeral, the large number of CSWs generated annually suggest that they represent a non-negligible source of time-averaged energy transport and bottom stress-induced dissipative mixing, particularly near the outer shelf and upper slope. Coastal water level and landfast ice breakout event forecasts should include CSW effects and associated lag times from distant upstream winds. Article in Journal/Newspaper Arctic Beaufort Sea Bering Sea Bering Strait Chukchi Chukchi Sea East Siberian Sea Kara Sea laptev Laptev Sea Severnaya Zemlya Directory of Open Access Journals: DOAJ Articles Arctic Bering Sea Laptev Sea Kara Sea Chukchi Sea Bering Strait East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Frontiers in Marine Science 7 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
continental shelf wave Arctic storm surge sea level coastal trapped wave tide gauge Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
continental shelf wave Arctic storm surge sea level coastal trapped wave tide gauge Science Q General. Including nature conservation geographical distribution QH1-199.5 Seth L. Danielson Tyler D. Hennon Katherine S. Hedstrom Andrey V. Pnyushkov Igor V. Polyakov Eddy Carmack Kirill Filchuk Markus Janout Mikhail Makhotin William J. Williams Laurie Padman Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves |
topic_facet |
continental shelf wave Arctic storm surge sea level coastal trapped wave tide gauge Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Data from coastal tide gauges, oceanographic moorings, and a numerical model show that Arctic storm surges force continental shelf waves (CSWs) that dynamically link the circumpolar Arctic continental shelf system. These trains of barotropic disturbances result from coastal convergences driven by cross-shelf Ekman transport. Observed propagation speeds of 600−3000 km day–1, periods of 2−6 days, wavelengths of 2000−7000 km, and elevation maxima near the coast but velocity maxima near the upper slope are all consistent with theoretical CSW characteristics. Other, more isolated events are tied to local responses to propagating storm systems. Energy and phase propagation is from west to east: ocean elevation anomalies in the Laptev Sea follow Kara Sea anomalies by one day and precede Chukchi and Beaufort Sea anomalies by 4−6 days. Some leakage and dissipation occurs. About half of the eastward-propagating energy in the Kara Sea passes Severnaya Zemlya into the Laptev Sea. About half of the eastward-propagating energy from the East Siberian Sea passes southward through Bering Strait, while one quarter is dissipated locally in the Chukchi Sea and another quarter passes eastward into the Beaufort Sea. Likewise, CSW generation in the Bering Sea can trigger elevation and current speed anomalies downstream in the Northeast Chukchi Sea of 25 cm and 20 cm s–1, respectively. Although each event is ephemeral, the large number of CSWs generated annually suggest that they represent a non-negligible source of time-averaged energy transport and bottom stress-induced dissipative mixing, particularly near the outer shelf and upper slope. Coastal water level and landfast ice breakout event forecasts should include CSW effects and associated lag times from distant upstream winds. |
format |
Article in Journal/Newspaper |
author |
Seth L. Danielson Tyler D. Hennon Katherine S. Hedstrom Andrey V. Pnyushkov Igor V. Polyakov Eddy Carmack Kirill Filchuk Markus Janout Mikhail Makhotin William J. Williams Laurie Padman |
author_facet |
Seth L. Danielson Tyler D. Hennon Katherine S. Hedstrom Andrey V. Pnyushkov Igor V. Polyakov Eddy Carmack Kirill Filchuk Markus Janout Mikhail Makhotin William J. Williams Laurie Padman |
author_sort |
Seth L. Danielson |
title |
Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves |
title_short |
Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves |
title_full |
Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves |
title_fullStr |
Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves |
title_full_unstemmed |
Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves |
title_sort |
oceanic routing of wind-sourced energy along the arctic continental shelves |
publisher |
Frontiers Media S.A. |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmars.2020.00509 https://doaj.org/article/0b63bbc0f5b44f9691a1db6bb108418b |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) ENVELOPE(98.000,98.000,79.500,79.500) |
geographic |
Arctic Bering Sea Laptev Sea Kara Sea Chukchi Sea Bering Strait East Siberian Sea Severnaya Zemlya |
geographic_facet |
Arctic Bering Sea Laptev Sea Kara Sea Chukchi Sea Bering Strait East Siberian Sea Severnaya Zemlya |
genre |
Arctic Beaufort Sea Bering Sea Bering Strait Chukchi Chukchi Sea East Siberian Sea Kara Sea laptev Laptev Sea Severnaya Zemlya |
genre_facet |
Arctic Beaufort Sea Bering Sea Bering Strait Chukchi Chukchi Sea East Siberian Sea Kara Sea laptev Laptev Sea Severnaya Zemlya |
op_source |
Frontiers in Marine Science, Vol 7 (2020) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmars.2020.00509/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2020.00509 https://doaj.org/article/0b63bbc0f5b44f9691a1db6bb108418b |
op_doi |
https://doi.org/10.3389/fmars.2020.00509 |
container_title |
Frontiers in Marine Science |
container_volume |
7 |
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1766324523503714304 |