Dissipation effects in North Atlantic Ocean modeling
[1] Numerical experiments varying lateral viscosity and diffusivity between 20 and 150 m2/s in a North Atlantic Ocean (NAO) model having 4th-order accurate numerics, in which the dense deep current system (DCS) from the northern seas and Arctic Ocean is simulated directly show that Gulf Stream (GS)...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.589.9068 2023-05-15T14:54:03+02:00 Dissipation effects in North Atlantic Ocean modeling The Pennsylvania State University CiteSeerX Archives 2004 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.9068 http://efdl.as.ntu.edu.tw/research/papers/GRL2004.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.9068 http://efdl.as.ntu.edu.tw/research/papers/GRL2004.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://efdl.as.ntu.edu.tw/research/papers/GRL2004.pdf doi 10.1029/2003GL019015 text 2004 ftciteseerx 2016-01-08T13:25:59Z [1] Numerical experiments varying lateral viscosity and diffusivity between 20 and 150 m2/s in a North Atlantic Ocean (NAO) model having 4th-order accurate numerics, in which the dense deep current system (DCS) from the northern seas and Arctic Ocean is simulated directly show that Gulf Stream (GS) separation is strongly affected by the dissipation of the DCS. This is true even though the separation is highly inertial with large Reynolds number for GS separation flow scales. We show that realistic NAO modeling requires less than 150 m2/s viscosity and diffusivity in order to maintain the DCS material current with enough intensity to get realistic GS separation near Cape Hatteras (CH). This also demands accurate, low dissipation numerics, because of the long transit time (1–10 years) of DCS material from its northern seas and Arctic Ocean source regions to the Cape Hatteras region and the small lateral and vertical Text Arctic Arctic Ocean North Atlantic Unknown Arctic Arctic Ocean |
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English |
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doi 10.1029/2003GL019015 |
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doi 10.1029/2003GL019015 Dissipation effects in North Atlantic Ocean modeling |
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doi 10.1029/2003GL019015 |
description |
[1] Numerical experiments varying lateral viscosity and diffusivity between 20 and 150 m2/s in a North Atlantic Ocean (NAO) model having 4th-order accurate numerics, in which the dense deep current system (DCS) from the northern seas and Arctic Ocean is simulated directly show that Gulf Stream (GS) separation is strongly affected by the dissipation of the DCS. This is true even though the separation is highly inertial with large Reynolds number for GS separation flow scales. We show that realistic NAO modeling requires less than 150 m2/s viscosity and diffusivity in order to maintain the DCS material current with enough intensity to get realistic GS separation near Cape Hatteras (CH). This also demands accurate, low dissipation numerics, because of the long transit time (1–10 years) of DCS material from its northern seas and Arctic Ocean source regions to the Cape Hatteras region and the small lateral and vertical |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
Dissipation effects in North Atlantic Ocean modeling |
title_short |
Dissipation effects in North Atlantic Ocean modeling |
title_full |
Dissipation effects in North Atlantic Ocean modeling |
title_fullStr |
Dissipation effects in North Atlantic Ocean modeling |
title_full_unstemmed |
Dissipation effects in North Atlantic Ocean modeling |
title_sort |
dissipation effects in north atlantic ocean modeling |
publishDate |
2004 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.9068 http://efdl.as.ntu.edu.tw/research/papers/GRL2004.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean North Atlantic |
genre_facet |
Arctic Arctic Ocean North Atlantic |
op_source |
http://efdl.as.ntu.edu.tw/research/papers/GRL2004.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.9068 http://efdl.as.ntu.edu.tw/research/papers/GRL2004.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766325736898035712 |