Records |
Author  |
Arbic, B.K.; Shriver, J.F.; Hogan, P.J.; Hurlburt, H.E.; McClean, J.L.; Metzger, E.J.; Scott, R.B.; Sen, A.; Smedstad, O.M.; Wallcraft, A.J. |
Title |
Estimates of bottom flows and bottom boundary layer dissipation of the oceanic general circulation from global high-resolution models |
Type |
$loc['typeJournal Article'] |
Year |
2009 |
Publication |
Journal of Geophysical Research |
Abbreviated Journal |
J. Geophys. Res. |
Volume |
114 |
Issue |
C2 |
Pages |
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Keywords |
energy budget; bottom drag; ocean models |
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Series Editor |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0148-0227 |
ISBN |
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Medium |
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Expedition |
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Conference |
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Funding |
Naval Research Laboratory |
Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
656 |
Permanent link to this record |
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Author  |
Davidson, F.; Alvera-Azcárate, A.; Barth, A.; Brassington, G.B.; Chassignet, E.P.; Clementi, E.; De Mey-Frémaux, P.; Divakaran, P.; Harris, C.; Hernandez, F.; Hogan, P.; Hole, L.R.; Holt, J.; Liu, G.; Lu, Y.; Lorente, P.; Maksymczuk, J.; Martin, M.; Mehra, A.; Melsom, A.; Mo, H.; Moore, A.; Oddo, P.; Pascual, A.; Pequignet, A.-C.; Kourafalou, V.; Ryan, A.; Siddorn, J.; Smith, G.; Spindler, D.; Spindler, T.; Stanev, E.V.; Staneva, J.; Storto, A.; Tanajura, C.; Vinayachandran, P.N.; Wan, L.; Wang, H.; Zhang, Y.; Zhu, X.; Zu, Z. |
Title |
Synergies in Operational Oceanography: The Intrinsic Need for Sustained Ocean Observations |
Type |
$loc['typeJournal Article'] |
Year |
2019 |
Publication |
Frontiers in Marine Science |
Abbreviated Journal |
Front. Mar. Sci. |
Volume |
6 |
Issue |
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Pages |
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Keywords |
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Abstract |
Operational oceanography can be described as the provision of routine oceanographic information needed for decision-making purposes. It is dependent upon sustained research and development through the end-to-end framework of an operational service, from observation collection to delivery mechanisms. The core components of operational oceanographic systems are a multi-platform observation network, a data management system, a data assimilative prediction system, and a dissemination/accessibility system. These are interdependent, necessitating communication and exchange between them, and together provide the mechanism through which a clear picture of ocean conditions, in the past, present, and future, can be seen. Ocean observations play a critical role in all aspects of operational oceanography, not only for assimilation but as part of the research cycle, and for verification and validation of products. Data assimilative prediction systems are advancing at a fast pace, in tandem with improved science and the growth in computing power. To make best use of the system capability these advances would be matched by equivalent advances in operational observation coverage. This synergy between the prediction and observation systems underpins the quality of products available to stakeholders, and justifies the need for sustained ocean observations. In this white paper, the components of an operational oceanographic system are described, highlighting the critical role of ocean observations, and how the operational systems will evolve over the next decade to improve the characterization of ocean conditions, including at finer spatial and temporal scales. |
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Edition |
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ISSN |
2296-7745 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
1083 |
Permanent link to this record |
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Author  |
Jeon, C.-H.; Buijsman, M.C.; Wallcraft, A.J.; Shriver, J.F.; Arbic, B.K.; Richman, J.G.; Hogan, P.J. |
Title |
Improving surface tidal accuracy through two-way nesting in a global ocean model |
Type |
$loc['typeJournal Article'] |
Year |
2019 |
Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
Volume |
137 |
Issue |
|
Pages |
98-113 |
Keywords |
Two-way nesting; HYCOM; Barotropic tides; OASIS3-MCT; FES2014; TPXO9-atlas |
Abstract |
In global ocean simulations, forward (non-data-assimilative) tide models generally feature large sea-surface-height errors near Hudson Strait in the North Atlantic Ocean with respect to altimetry-constrained tidal solutions. These errors may be associated with tidal resonances that are not well resolved by the complex coastal-shelf bathymetry in low-resolution simulations. An online two-way nesting framework has been implemented to improve global surface tides in the HYbrid Coordinate Ocean Model (HYCOM). In this framework, a high-resolution child domain, covering Hudson Strait, is coupled with a relatively low-resolution parent domain for computational efficiency. Data such as barotropic pressure and velocity are exchanged between the child and parent domains with the external coupler OASIS3-MCT. The developed nesting framework is validated with semi-idealized basin-scale model simulations. The M2 sea-surface heights show very good accuracy in the one-way and two-way nesting simulations in Hudson Strait, where large tidal elevations are observed. In addition, the mass and tidal energy flux are not adversely impacted at the nesting boundaries in the semi-idealized simulations. In a next step, the nesting framework is applied to a realistic global tide simulation. In this simulation, the resolution of the child domain (1/75°) is three times as fine as that of the parent domain (1/25°). The M2 sea-surface-height root-mean-square errors with tide gauge data and the altimetry-constrained global FES2014 and TPXO9-atlas tidal solutions are evaluated for the nesting and no-nesting solutions. The better resolved coastal bathymetry and the finer grid in the child domain improve the local tides in Hudson Strait and Bay, and the back-effect of the coastal tides induces an improvement of the barotropic tides in the open ocean of the Atlantic. |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1463-5003 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Funding |
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Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
1034 |
Permanent link to this record |
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Author  |
Jeon, C.-H.; Buijsman, M.C.; Wallcraft, A.J.; Shriver, J.F.; Arbic, B.K.; Richman, J.G.; Hogan, P.J. |
Title |
Improving surface tidal accuracy through two-way nesting in a global ocean model |
Type |
$loc['typeJournal Article'] |
Year |
2019 |
Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
Volume |
137 |
Issue |
|
Pages |
98-113 |
Keywords |
Two-way nesting; HYCOM; Barotropic tides; OASIS3-MCT; FES2014; TPXO9-atlas |
Abstract |
In global ocean simulations, forward (non-data-assimilative) tide models generally feature large sea-surface-height errors near Hudson Strait in the North Atlantic Ocean with respect to altimetry-constrained tidal solutions. These errors may be associated with tidal resonances that are not well resolved by the complex coastal-shelf bathymetry in low-resolution simulations. An online two-way nesting framework has been implemented to improve global surface tides in the HYbrid Coordinate Ocean Model (HYCOM). In this framework, a high-resolution child domain, covering Hudson Strait, is coupled with a relatively low-resolution parent domain for computational efficiency. Data such as barotropic pressure and velocity are exchanged between the child and parent domains with the external coupler OASIS3-MCT. The developed nesting framework is validated with semi-idealized basin-scale model simulations. The M2 sea-surface heights show very good accuracy in the one-way and two-way nesting simulations in Hudson Strait, where large tidal elevations are observed. In addition, the mass and tidal energy flux are not adversely impacted at the nesting boundaries in the semi-idealized simulations. In a next step, the nesting framework is applied to a realistic global tide simulation. In this simulation, the resolution of the child domain (1/75°) is three times as fine as that of the parent domain (1/25°). The M2 sea-surface-height root-mean-square errors with tide gauge data and the altimetry-constrained global FES2014 and TPXO9-atlas tidal solutions are evaluated for the nesting and no-nesting solutions. The better resolved coastal bathymetry and the finer grid in the child domain improve the local tides in Hudson Strait and Bay, and the back-effect of the coastal tides induces an improvement of the barotropic tides in the open ocean of the Atlantic. |
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Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
1036 |
Permanent link to this record |
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Author  |
Jeon, C.-H.; Buijsman, M.C.; Wallcraft, A.J.; Shriver, J.F.; Arbic, B.K.; Richman, J.G.; Hogan, P.J. |
Title |
Improving surface tidal accuracy through two-way nesting in a global ocean model |
Type |
$loc['typeJournal Article'] |
Year |
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Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
Volume |
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Issue |
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Pages |
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ISSN |
1463-5003 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
1035 |
Permanent link to this record |
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Author  |
Xu, X.; Schmitz Jr., W.J.; Hurlburt, H.E.; Hogan, P.J.; Chassignet, E.P. |
Title |
Transport of Nordic Seas overflow water into and within the Irminger Sea: An eddy-resolving simulation and observations |
Type |
$loc['typeJournal Article'] |
Year |
2010 |
Publication |
Journal of Geophysical Research |
Abbreviated Journal |
J. Geophys. Res. |
Volume |
115 |
Issue |
C12 |
Pages |
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Keywords |
transport; overflow water; Nordic Seas; North Atlantic Deep Water; Irminger Sea; Reykjanes Ridge |
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Series Editor |
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Edition |
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ISSN |
0148-0227 |
ISBN |
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Medium |
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Area |
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Funding |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
367 |
Permanent link to this record |
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Author  |
Zamudio, L.; Hogan, P.; Metzger, E.J. |
Title |
Summer generation of the Southern Gulf of California eddy train |
Type |
$loc['typeJournal Article'] |
Year |
2008 |
Publication |
Journal of Geophysical Research |
Abbreviated Journal |
J. Geophys. Res. |
Volume |
113 |
Issue |
C6 |
Pages |
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ISSN |
0148-0227 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
410 |
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Author  |
Zamudio, L.; Hogan, P.J. |
Title |
Nesting the Gulf of Mexico in Atlantic HYCOM: Oceanographic processes generated by Hurricane Ivan |
Type |
$loc['typeJournal Article'] |
Year |
2008 |
Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
Volume |
21 |
Issue |
3-4 |
Pages |
106-125 |
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1463-5003 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
418 |
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Author  |
Zamudio, L.; Metzger, E. J.; Hogan, P. J. |
Title |
A note on coastally trapped waves generated by the wind at the Northern Bight of Panama |
Type |
$loc['typeJournal Article'] |
Year |
2008 |
Publication |
Atmosfera |
Abbreviated Journal |
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Volume |
21 |
Issue |
3 |
Pages |
241-248 |
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$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
408 |
Permanent link to this record |
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Author  |
Zamudio, L.; Metzger, E.J.; Hogan, P. |
Title |
Modeling the seasonal and interannual variability of the northern Gulf of California salinity |
Type |
$loc['typeJournal Article'] |
Year |
2011 |
Publication |
Journal of Geophysical Research |
Abbreviated Journal |
J. Geophys. Res. |
Volume |
116 |
Issue |
C2 |
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ISSN |
0148-0227 |
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Funding |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
311 |
Permanent link to this record |