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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Language: | English |
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Online Access: | https://oceanrep.geomar.de/id/eprint/53030/ https://oceanrep.geomar.de/id/eprint/53030/1/Danielson.pdf https://doi.org/10.3389/fmars.2020.00509 |
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ftoceanrep:oai:oceanrep.geomar.de:53030 2023-05-15T14:27:12+02:00 Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves Danielson, Seth L. Hennon, Tyler D. Hedstrom, Katherine S. Pnyushkov, Andrey V. Polyakov, Igor V. Carmack, Eddy Filchuk, Kirill Janout, Markus Makhotin, Mikhail Williams, William J. Padman, Laurie 2020-07-10 text https://oceanrep.geomar.de/id/eprint/53030/ https://oceanrep.geomar.de/id/eprint/53030/1/Danielson.pdf https://doi.org/10.3389/fmars.2020.00509 en eng Frontiers https://oceanrep.geomar.de/id/eprint/53030/1/Danielson.pdf Danielson, S. L., Hennon, T. D., Hedstrom, K. S., Pnyushkov, A. V., Polyakov, I. V., Carmack, E., Filchuk, K., Janout, M., Makhotin, M., Williams, W. J. and Padman, L. (2020) Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves. Open Access Frontiers in Marine Science, 7 . Art.Nr. 509. DOI 10.3389/fmars.2020.00509 <https://doi.org/10.3389/fmars.2020.00509>. doi:10.3389/fmars.2020.00509 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2020 ftoceanrep https://doi.org/10.3389/fmars.2020.00509 2023-04-07T15:56:55Z 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 Arctic Beaufort Sea Bering Sea Bering Strait Chukchi Chukchi Sea East Siberian Sea Kara Sea laptev Laptev Sea Severnaya Zemlya OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Bering Sea Bering Strait Chukchi Sea East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Kara Sea Laptev Sea Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Frontiers in Marine Science 7 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
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 |
Danielson, Seth L. Hennon, Tyler D. Hedstrom, Katherine S. Pnyushkov, Andrey V. Polyakov, Igor V. Carmack, Eddy Filchuk, Kirill Janout, Markus Makhotin, Mikhail Williams, William J. Padman, Laurie |
spellingShingle |
Danielson, Seth L. Hennon, Tyler D. Hedstrom, Katherine S. Pnyushkov, Andrey V. Polyakov, Igor V. Carmack, Eddy Filchuk, Kirill Janout, Markus Makhotin, Mikhail Williams, William J. Padman, Laurie Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves |
author_facet |
Danielson, Seth L. Hennon, Tyler D. Hedstrom, Katherine S. Pnyushkov, Andrey V. Polyakov, Igor V. Carmack, Eddy Filchuk, Kirill Janout, Markus Makhotin, Mikhail Williams, William J. Padman, Laurie |
author_sort |
Danielson, Seth L. |
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 |
publishDate |
2020 |
url |
https://oceanrep.geomar.de/id/eprint/53030/ https://oceanrep.geomar.de/id/eprint/53030/1/Danielson.pdf https://doi.org/10.3389/fmars.2020.00509 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) ENVELOPE(98.000,98.000,79.500,79.500) |
geographic |
Arctic Bering Sea Bering Strait Chukchi Sea East Siberian Sea Kara Sea Laptev Sea Severnaya Zemlya |
geographic_facet |
Arctic Bering Sea Bering Strait Chukchi Sea East Siberian Sea Kara Sea Laptev Sea Severnaya Zemlya |
genre |
Arctic Arctic Beaufort Sea Bering Sea Bering Strait Chukchi Chukchi Sea East Siberian Sea Kara Sea laptev Laptev Sea Severnaya Zemlya |
genre_facet |
Arctic Arctic Beaufort Sea Bering Sea Bering Strait Chukchi Chukchi Sea East Siberian Sea Kara Sea laptev Laptev Sea Severnaya Zemlya |
op_relation |
https://oceanrep.geomar.de/id/eprint/53030/1/Danielson.pdf Danielson, S. L., Hennon, T. D., Hedstrom, K. S., Pnyushkov, A. V., Polyakov, I. V., Carmack, E., Filchuk, K., Janout, M., Makhotin, M., Williams, W. J. and Padman, L. (2020) Oceanic Routing of Wind-Sourced Energy Along the Arctic Continental Shelves. Open Access Frontiers in Marine Science, 7 . Art.Nr. 509. DOI 10.3389/fmars.2020.00509 <https://doi.org/10.3389/fmars.2020.00509>. doi:10.3389/fmars.2020.00509 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/fmars.2020.00509 |
container_title |
Frontiers in Marine Science |
container_volume |
7 |
_version_ |
1766300824886050816 |