A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway
A semi-analytical model of the Panama throughflow is presented. The model expresses the throughflow transport as a function of deep water formation in the North Pacific and in the North Atlantic, and of the Panama Gateway depth. The model is derived from the integral of the momentum equation along a...
Published in: | Dynamics of Atmospheres and Oceans |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
ELSEVIER SCIENCE BV
2010
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/48637/ https://www.sciencedirect.com/science/article/pii/S0377026509000700 https://hdl.handle.net/10013/epic.f4a5c7ff-aa25-4c17-a634-8da922e60911 |
id |
ftawi:oai:epic.awi.de:48637 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:48637 2024-09-15T17:47:05+00:00 A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway Sumata, Hiroshi Minobe, Shoshiro Motoi, Tatsuo Chan, Wing-Le 2010-06 https://epic.awi.de/id/eprint/48637/ https://www.sciencedirect.com/science/article/pii/S0377026509000700 https://hdl.handle.net/10013/epic.f4a5c7ff-aa25-4c17-a634-8da922e60911 unknown ELSEVIER SCIENCE BV Sumata, H. orcid:0000-0002-2832-2875 , Minobe, S. , Motoi, T. and Chan, W. L. (2010) A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway , Dynamics of Atmospheres and Oceans, 50 (1), pp. 55-77 . doi:10.1016/j.dynatmoce.2009.10.001 <https://doi.org/10.1016/j.dynatmoce.2009.10.001> , hdl:10013/epic.f4a5c7ff-aa25-4c17-a634-8da922e60911 EPIC3Dynamics of Atmospheres and Oceans, ELSEVIER SCIENCE BV, 50(1), pp. 55-77, ISSN: 0377-0265 Article isiRev 2010 ftawi https://doi.org/10.1016/j.dynatmoce.2009.10.001 2024-06-24T04:21:00Z A semi-analytical model of the Panama throughflow is presented. The model expresses the throughflow transport as a function of deep water formation in the North Pacific and in the North Atlantic, and of the Panama Gateway depth. The model is derived from the integral of the momentum equation along a circumpolar path, and can be interpreted from the point of view of the vorticity balance. The important conditions are whether the deep water, whose location is considered to be above the bottom water formed around Antarctica, originates from the North Atlantic or from the North Pacific, and whether the Panama Gateway is shallower than the lower boundary of the deep water. The present model indicates that the barotropic transport through the Panama Gateway is eastward, except for the case where the deep water is formed in the North Pacific and the sill of the Panama Gateway is shallow. The baroclinic structure of the Panama throughflow depends on whether the deep water is formed in the North Pacific or in the North Atlantic. These qualitative implications of the model are consistent with recent numerical studies and proxy-based paleoceanographic studies. Numerical experiments performed in the present study reinforce confidence in the semi-analytical model. Article in Journal/Newspaper Antarc* Antarctica North Atlantic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Dynamics of Atmospheres and Oceans 50 1 55 77 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
A semi-analytical model of the Panama throughflow is presented. The model expresses the throughflow transport as a function of deep water formation in the North Pacific and in the North Atlantic, and of the Panama Gateway depth. The model is derived from the integral of the momentum equation along a circumpolar path, and can be interpreted from the point of view of the vorticity balance. The important conditions are whether the deep water, whose location is considered to be above the bottom water formed around Antarctica, originates from the North Atlantic or from the North Pacific, and whether the Panama Gateway is shallower than the lower boundary of the deep water. The present model indicates that the barotropic transport through the Panama Gateway is eastward, except for the case where the deep water is formed in the North Pacific and the sill of the Panama Gateway is shallow. The baroclinic structure of the Panama throughflow depends on whether the deep water is formed in the North Pacific or in the North Atlantic. These qualitative implications of the model are consistent with recent numerical studies and proxy-based paleoceanographic studies. Numerical experiments performed in the present study reinforce confidence in the semi-analytical model. |
format |
Article in Journal/Newspaper |
author |
Sumata, Hiroshi Minobe, Shoshiro Motoi, Tatsuo Chan, Wing-Le |
spellingShingle |
Sumata, Hiroshi Minobe, Shoshiro Motoi, Tatsuo Chan, Wing-Le A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway |
author_facet |
Sumata, Hiroshi Minobe, Shoshiro Motoi, Tatsuo Chan, Wing-Le |
author_sort |
Sumata, Hiroshi |
title |
A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway |
title_short |
A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway |
title_full |
A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway |
title_fullStr |
A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway |
title_full_unstemmed |
A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway |
title_sort |
semi-analytical model of barotropic and baroclinic flows for an open panama gateway |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2010 |
url |
https://epic.awi.de/id/eprint/48637/ https://www.sciencedirect.com/science/article/pii/S0377026509000700 https://hdl.handle.net/10013/epic.f4a5c7ff-aa25-4c17-a634-8da922e60911 |
genre |
Antarc* Antarctica North Atlantic |
genre_facet |
Antarc* Antarctica North Atlantic |
op_source |
EPIC3Dynamics of Atmospheres and Oceans, ELSEVIER SCIENCE BV, 50(1), pp. 55-77, ISSN: 0377-0265 |
op_relation |
Sumata, H. orcid:0000-0002-2832-2875 , Minobe, S. , Motoi, T. and Chan, W. L. (2010) A semi-analytical model of barotropic and baroclinic flows for an open Panama Gateway , Dynamics of Atmospheres and Oceans, 50 (1), pp. 55-77 . doi:10.1016/j.dynatmoce.2009.10.001 <https://doi.org/10.1016/j.dynatmoce.2009.10.001> , hdl:10013/epic.f4a5c7ff-aa25-4c17-a634-8da922e60911 |
op_doi |
https://doi.org/10.1016/j.dynatmoce.2009.10.001 |
container_title |
Dynamics of Atmospheres and Oceans |
container_volume |
50 |
container_issue |
1 |
container_start_page |
55 |
op_container_end_page |
77 |
_version_ |
1810495701924184064 |