Impact of GODAE products on nested HYCOM simulations of the West Florida Shelf
peer reviewed Nested non-assimilative simulations of the West Florida Shelf for 2004-2005 are used to quantify the impact of initial and boundary conditions provided by Global Ocean Data Assimilation Experiment ocean products. Simulations are nested within an optimum interpolation hindcast of the At...
Published in: | Ocean Dynamics |
---|---|
Main Authors: | , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Springer Science & Business Media B.V.
2009
|
Subjects: | |
Online Access: | https://orbi.uliege.be/handle/2268/26584 https://doi.org/10.1007/s10236-008-0173-2 |
id |
ftorbi:oai:orbi.ulg.ac.be:2268/26584 |
---|---|
record_format |
openpolar |
spelling |
ftorbi:oai:orbi.ulg.ac.be:2268/26584 2024-10-13T14:09:32+00:00 Impact of GODAE products on nested HYCOM simulations of the West Florida Shelf Halliwell, G. R. Barth, Alexander Weiberg, R. H. Hogan, P. Smedstad, O. M. Cummings, J. Centre Interfacultaire de Recherches en Océanologie - MARE - GHER 2009-02 https://orbi.uliege.be/handle/2268/26584 https://doi.org/10.1007/s10236-008-0173-2 en eng Springer Science & Business Media B.V. urn:issn:1616-7341 urn:issn:1616-7228 https://orbi.uliege.be/handle/2268/26584 info:hdl:2268/26584 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess Ocean Dynamics, 59 (1), 139-155 (2009-02) coordinate ocean model vertical coordinate continental shelf data assimilation north atlantic pressure intrusion initialization circulation seamount Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2009 ftorbi https://doi.org/10.1007/s10236-008-0173-2 2024-09-27T07:01:40Z peer reviewed Nested non-assimilative simulations of the West Florida Shelf for 2004-2005 are used to quantify the impact of initial and boundary conditions provided by Global Ocean Data Assimilation Experiment ocean products. Simulations are nested within an optimum interpolation hindcast of the Atlantic Ocean, the initial test of the US Navy Coupled Ocean Data Assimilation system for the Gulf of Mexico, and a global ocean hindcast that used the latter assimilation system. These simulations are compared to one that is nested in a non-assimilative Gulf of Mexico model to document the importance of assimilation in the outer model. Simulations are evaluated by comparing model results to moored Acoustic Doppler Current Profiler measurements and moored sea surface temperature time series. The choice of outer model has little influence on simulated velocity fluctuations over the inner and middle shelf where fluctuations are dominated by the deterministic wind-driven response. Improvement is documented in the representation of alongshore flow variability over the outer shelf, driven in part by the intrusion of the Loop Current and associated cyclones at the shelf edge near the Dry Tortugas. This improvement was realized in the simulation nested in the global ocean hindcast, the only outer model choice that contained a realistic representation of Loop Current transport associated with basin-scale wind-driven gyre circulation and the Atlantic Meridional Overturning Circulation. For temperature, the non-assimilative outer model had a cold bias in the upper ocean that was substantially corrected in the data-assimilative outer models, leading to improved temperature representation in the simulations nested in the assimilative outer models. Article in Journal/Newspaper North Atlantic University of Liège: ORBi (Open Repository and Bibliography) Ocean Dynamics 59 1 139 155 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
coordinate ocean model vertical coordinate continental shelf data assimilation north atlantic pressure intrusion initialization circulation seamount Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
coordinate ocean model vertical coordinate continental shelf data assimilation north atlantic pressure intrusion initialization circulation seamount Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Halliwell, G. R. Barth, Alexander Weiberg, R. H. Hogan, P. Smedstad, O. M. Cummings, J. Impact of GODAE products on nested HYCOM simulations of the West Florida Shelf |
topic_facet |
coordinate ocean model vertical coordinate continental shelf data assimilation north atlantic pressure intrusion initialization circulation seamount Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed Nested non-assimilative simulations of the West Florida Shelf for 2004-2005 are used to quantify the impact of initial and boundary conditions provided by Global Ocean Data Assimilation Experiment ocean products. Simulations are nested within an optimum interpolation hindcast of the Atlantic Ocean, the initial test of the US Navy Coupled Ocean Data Assimilation system for the Gulf of Mexico, and a global ocean hindcast that used the latter assimilation system. These simulations are compared to one that is nested in a non-assimilative Gulf of Mexico model to document the importance of assimilation in the outer model. Simulations are evaluated by comparing model results to moored Acoustic Doppler Current Profiler measurements and moored sea surface temperature time series. The choice of outer model has little influence on simulated velocity fluctuations over the inner and middle shelf where fluctuations are dominated by the deterministic wind-driven response. Improvement is documented in the representation of alongshore flow variability over the outer shelf, driven in part by the intrusion of the Loop Current and associated cyclones at the shelf edge near the Dry Tortugas. This improvement was realized in the simulation nested in the global ocean hindcast, the only outer model choice that contained a realistic representation of Loop Current transport associated with basin-scale wind-driven gyre circulation and the Atlantic Meridional Overturning Circulation. For temperature, the non-assimilative outer model had a cold bias in the upper ocean that was substantially corrected in the data-assimilative outer models, leading to improved temperature representation in the simulations nested in the assimilative outer models. |
author2 |
Centre Interfacultaire de Recherches en Océanologie - MARE - GHER |
format |
Article in Journal/Newspaper |
author |
Halliwell, G. R. Barth, Alexander Weiberg, R. H. Hogan, P. Smedstad, O. M. Cummings, J. |
author_facet |
Halliwell, G. R. Barth, Alexander Weiberg, R. H. Hogan, P. Smedstad, O. M. Cummings, J. |
author_sort |
Halliwell, G. R. |
title |
Impact of GODAE products on nested HYCOM simulations of the West Florida Shelf |
title_short |
Impact of GODAE products on nested HYCOM simulations of the West Florida Shelf |
title_full |
Impact of GODAE products on nested HYCOM simulations of the West Florida Shelf |
title_fullStr |
Impact of GODAE products on nested HYCOM simulations of the West Florida Shelf |
title_full_unstemmed |
Impact of GODAE products on nested HYCOM simulations of the West Florida Shelf |
title_sort |
impact of godae products on nested hycom simulations of the west florida shelf |
publisher |
Springer Science & Business Media B.V. |
publishDate |
2009 |
url |
https://orbi.uliege.be/handle/2268/26584 https://doi.org/10.1007/s10236-008-0173-2 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Ocean Dynamics, 59 (1), 139-155 (2009-02) |
op_relation |
urn:issn:1616-7341 urn:issn:1616-7228 https://orbi.uliege.be/handle/2268/26584 info:hdl:2268/26584 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s10236-008-0173-2 |
container_title |
Ocean Dynamics |
container_volume |
59 |
container_issue |
1 |
container_start_page |
139 |
op_container_end_page |
155 |
_version_ |
1812816538987659264 |