A regional tidal/subtidal circulation model of the southeastern Bering Sea: Development, sensitivity analyses and hindcasting
A regional eddy-resolving primitive equation circulation model was used to simulate circulation on the southeastern Bering Sea (SEBS) shelf and basin. This model resolves the dominant observed mean currents, eddies and meanders in the region, and simultaneously includes both tidal and subtidal dynam...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.24.9648 2023-05-15T15:43:27+02:00 A regional tidal/subtidal circulation model of the southeastern Bering Sea: Development, sensitivity analyses and hindcasting Albert Hermann Phyllis Albert J. Hermann Phyllis J. Stabeno Dale B. Haidvogel David L. Musgrave The Pennsylvania State University CiteSeerX Archives 2001 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.24.9648 http://www.pmel.noaa.gov/~hermann/sebscc-2001/ms.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.24.9648 http://www.pmel.noaa.gov/~hermann/sebscc-2001/ms.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.pmel.noaa.gov/~hermann/sebscc-2001/ms.pdf text 2001 ftciteseerx 2016-01-07T19:09:45Z A regional eddy-resolving primitive equation circulation model was used to simulate circulation on the southeastern Bering Sea (SEBS) shelf and basin. This model resolves the dominant observed mean currents, eddies and meanders in the region, and simultaneously includes both tidal and subtidal dynamics. Circulation, temperature and salinity fields for years 1995 and 1997 were hindcast, using daily wind and buoyancy flux estimates, and tidal forcing derived from a global model. This paper describes the development of the regional model, a comparison of model results with available Eulerian and Lagrangian data, a comparison of results between the two hindcast years, and a sensitivity analysis. Based on these hindcasts and sensitivity analyses, we suggest the following: 1) The Bering Slope Current (BSC) is a primary source of large (~100 km diameter) eddies in the SEBS basin. Smaller meanders are also formed along the 100 m isobath on the southeastern shelf, and along the 200 m isobath near the shelf break. 2) There is substantial interannual variability in the statistics of eddies within the basin, driven by variability in the strength of the ANSC. 3) The mean flow on the shelf is not strongly sensitive to changes in the imposed strength of the ANSC; rather, it is strongly sensitive to the local wind forcing. 4) Vertical mixing in the SEBS is strongly affected by both tidal and subtidal dynamics. Strongest mixing in the SEBS may in fact occur between the 100 and 400 m isobaths, near the Pribilof Islands, and in Unimak Pass. Keywords: Coastal Oceanography, Dynamical Oceanography, Physical Oceanography, Fishery Oceanography, USA, Alaska, Bering Sea, 52 o N-59 o N, 174 o W - 163 o W. 3 Text Bering Sea Alaska Unknown Bering Sea |
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Open Polar |
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Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
A regional eddy-resolving primitive equation circulation model was used to simulate circulation on the southeastern Bering Sea (SEBS) shelf and basin. This model resolves the dominant observed mean currents, eddies and meanders in the region, and simultaneously includes both tidal and subtidal dynamics. Circulation, temperature and salinity fields for years 1995 and 1997 were hindcast, using daily wind and buoyancy flux estimates, and tidal forcing derived from a global model. This paper describes the development of the regional model, a comparison of model results with available Eulerian and Lagrangian data, a comparison of results between the two hindcast years, and a sensitivity analysis. Based on these hindcasts and sensitivity analyses, we suggest the following: 1) The Bering Slope Current (BSC) is a primary source of large (~100 km diameter) eddies in the SEBS basin. Smaller meanders are also formed along the 100 m isobath on the southeastern shelf, and along the 200 m isobath near the shelf break. 2) There is substantial interannual variability in the statistics of eddies within the basin, driven by variability in the strength of the ANSC. 3) The mean flow on the shelf is not strongly sensitive to changes in the imposed strength of the ANSC; rather, it is strongly sensitive to the local wind forcing. 4) Vertical mixing in the SEBS is strongly affected by both tidal and subtidal dynamics. Strongest mixing in the SEBS may in fact occur between the 100 and 400 m isobaths, near the Pribilof Islands, and in Unimak Pass. Keywords: Coastal Oceanography, Dynamical Oceanography, Physical Oceanography, Fishery Oceanography, USA, Alaska, Bering Sea, 52 o N-59 o N, 174 o W - 163 o W. 3 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Albert Hermann Phyllis Albert J. Hermann Phyllis J. Stabeno Dale B. Haidvogel David L. Musgrave |
spellingShingle |
Albert Hermann Phyllis Albert J. Hermann Phyllis J. Stabeno Dale B. Haidvogel David L. Musgrave A regional tidal/subtidal circulation model of the southeastern Bering Sea: Development, sensitivity analyses and hindcasting |
author_facet |
Albert Hermann Phyllis Albert J. Hermann Phyllis J. Stabeno Dale B. Haidvogel David L. Musgrave |
author_sort |
Albert Hermann Phyllis |
title |
A regional tidal/subtidal circulation model of the southeastern Bering Sea: Development, sensitivity analyses and hindcasting |
title_short |
A regional tidal/subtidal circulation model of the southeastern Bering Sea: Development, sensitivity analyses and hindcasting |
title_full |
A regional tidal/subtidal circulation model of the southeastern Bering Sea: Development, sensitivity analyses and hindcasting |
title_fullStr |
A regional tidal/subtidal circulation model of the southeastern Bering Sea: Development, sensitivity analyses and hindcasting |
title_full_unstemmed |
A regional tidal/subtidal circulation model of the southeastern Bering Sea: Development, sensitivity analyses and hindcasting |
title_sort |
regional tidal/subtidal circulation model of the southeastern bering sea: development, sensitivity analyses and hindcasting |
publishDate |
2001 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.24.9648 http://www.pmel.noaa.gov/~hermann/sebscc-2001/ms.pdf |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea Alaska |
genre_facet |
Bering Sea Alaska |
op_source |
http://www.pmel.noaa.gov/~hermann/sebscc-2001/ms.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.24.9648 http://www.pmel.noaa.gov/~hermann/sebscc-2001/ms.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766377604979359744 |