The Burdwood Bank Circulation
A suite of high-resolution numerical simulations characterizes the oceanic circulation in the Burdwood Bank, a shallow seamount located in the northeastern end of the Drake Passage. Model analysis shows energetic upwelling and mixing uplifting deep and benthic waters into the photic layer. Tides and...
Published in: | Journal of Geophysical Research: Oceans |
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Online Access: | http://hdl.handle.net/11336/99734 |
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ftconicet:oai:ri.conicet.gov.ar:11336/99734 2023-10-09T21:45:45+02:00 The Burdwood Bank Circulation Matano, Ricardo P. Palma, Elbio Daniel Combes, Vincent application/pdf http://hdl.handle.net/11336/99734 eng eng American Geophysical Union info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019JC015001 info:eu-repo/semantics/altIdentifier/doi/10.1029/2019JC015001 http://hdl.handle.net/11336/99734 Matano, Ricardo P.; Palma, Elbio Daniel; Combes, Vincent; The Burdwood Bank Circulation; American Geophysical Union; Journal of Geophysical Research; 124; 10; 10-2019; 6904-6926 0148-0227 2169-9291 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ OCEAN FERTILIZATION SEAMOUNTS SOUTHERN OCEAN CIRCULATION https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1029/2019JC015001 2023-09-24T18:52:46Z A suite of high-resolution numerical simulations characterizes the oceanic circulation in the Burdwood Bank, a shallow seamount located in the northeastern end of the Drake Passage. Model analysis shows energetic upwelling and mixing uplifting deep and benthic waters into the photic layer. Tides and the Antarctic Circumpolar Current are the primary drivers of the bank's circulation. Tidal forcing is the main driver for the entrainment of deep waters into the upper layers of the bank and local wind forcing for the detrainment of these waters into the deep ocean. Passive tracer diagnostics suggest that the dynamical processes triggered by the Burdwood Bank could have a significant impact on local ecosystems and the biogeochemical balance of the southwestern Atlantic region, which is one of the most fertile portions of the Southern Ocean. Model results are robust—they are reproduced in a wide array of model configurations—but there is insufficient observational evidence to corroborate them. Satellite color imagery does not show substantial chlorophyll blooms in this region but it shows strong phytoplankton plumes emanating from the bank. There are several potential explanations for the chlorophyll deficit, including lack of light due to persistent cloud cover, deep mixing layers, fast ocean currents, and the likelihood that blooms, while extant, might not develop on the surface. None of these possibilities can be confirmed at this stage. Fil: Matano, Ricardo P. State University of Oregon; Estados Unidos Fil: Palma, Elbio Daniel. Universidad Nacional del Sur. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina Fil: Combes, Vincent. State University of Oregon; Estados Unidos Article in Journal/Newspaper Antarc* Antarctic Drake Passage Southern Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Southern Ocean The Antarctic Drake Passage Argentino Argentina Ricardo ENVELOPE(-63.033,-63.033,-64.867,-64.867) Burdwood Bank ENVELOPE(-59.000,-59.000,-54.250,-54.250) Journal of Geophysical Research: Oceans 124 10 6904 6926 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
OCEAN FERTILIZATION SEAMOUNTS SOUTHERN OCEAN CIRCULATION https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
OCEAN FERTILIZATION SEAMOUNTS SOUTHERN OCEAN CIRCULATION https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Matano, Ricardo P. Palma, Elbio Daniel Combes, Vincent The Burdwood Bank Circulation |
topic_facet |
OCEAN FERTILIZATION SEAMOUNTS SOUTHERN OCEAN CIRCULATION https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
A suite of high-resolution numerical simulations characterizes the oceanic circulation in the Burdwood Bank, a shallow seamount located in the northeastern end of the Drake Passage. Model analysis shows energetic upwelling and mixing uplifting deep and benthic waters into the photic layer. Tides and the Antarctic Circumpolar Current are the primary drivers of the bank's circulation. Tidal forcing is the main driver for the entrainment of deep waters into the upper layers of the bank and local wind forcing for the detrainment of these waters into the deep ocean. Passive tracer diagnostics suggest that the dynamical processes triggered by the Burdwood Bank could have a significant impact on local ecosystems and the biogeochemical balance of the southwestern Atlantic region, which is one of the most fertile portions of the Southern Ocean. Model results are robust—they are reproduced in a wide array of model configurations—but there is insufficient observational evidence to corroborate them. Satellite color imagery does not show substantial chlorophyll blooms in this region but it shows strong phytoplankton plumes emanating from the bank. There are several potential explanations for the chlorophyll deficit, including lack of light due to persistent cloud cover, deep mixing layers, fast ocean currents, and the likelihood that blooms, while extant, might not develop on the surface. None of these possibilities can be confirmed at this stage. Fil: Matano, Ricardo P. State University of Oregon; Estados Unidos Fil: Palma, Elbio Daniel. Universidad Nacional del Sur. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina Fil: Combes, Vincent. State University of Oregon; Estados Unidos |
format |
Article in Journal/Newspaper |
author |
Matano, Ricardo P. Palma, Elbio Daniel Combes, Vincent |
author_facet |
Matano, Ricardo P. Palma, Elbio Daniel Combes, Vincent |
author_sort |
Matano, Ricardo P. |
title |
The Burdwood Bank Circulation |
title_short |
The Burdwood Bank Circulation |
title_full |
The Burdwood Bank Circulation |
title_fullStr |
The Burdwood Bank Circulation |
title_full_unstemmed |
The Burdwood Bank Circulation |
title_sort |
burdwood bank circulation |
publisher |
American Geophysical Union |
url |
http://hdl.handle.net/11336/99734 |
long_lat |
ENVELOPE(-63.033,-63.033,-64.867,-64.867) ENVELOPE(-59.000,-59.000,-54.250,-54.250) |
geographic |
Antarctic Southern Ocean The Antarctic Drake Passage Argentino Argentina Ricardo Burdwood Bank |
geographic_facet |
Antarctic Southern Ocean The Antarctic Drake Passage Argentino Argentina Ricardo Burdwood Bank |
genre |
Antarc* Antarctic Drake Passage Southern Ocean |
genre_facet |
Antarc* Antarctic Drake Passage Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019JC015001 info:eu-repo/semantics/altIdentifier/doi/10.1029/2019JC015001 http://hdl.handle.net/11336/99734 Matano, Ricardo P.; Palma, Elbio Daniel; Combes, Vincent; The Burdwood Bank Circulation; American Geophysical Union; Journal of Geophysical Research; 124; 10; 10-2019; 6904-6926 0148-0227 2169-9291 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.1029/2019JC015001 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
124 |
container_issue |
10 |
container_start_page |
6904 |
op_container_end_page |
6926 |
_version_ |
1779321410446950400 |