| Records |
| Author |
Luecke, C.A.; Arbic, B.K.; Bassette, S.L.; Richman, J.G.; Shriver, J.F.; Alford, M.H.; Smedstad, O.M.; Timko, P.G.; Trossman, D.S.; Wallcraft, A.J. |
| Title |
The Global Mesoscale Eddy Available Potential Energy Field in Models and Observations |
Type |
$loc['typeJournal Article'] |
| Year |
2017 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
122 |
Issue |
11 |
Pages |
9126-9143 |
| Keywords |
eddy available potential energy; mesoscale eddies; mixing; model-data comparison; ocean energy reservoirs; Argo |
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| ISSN |
2169-9275 |
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| Call Number |
COAPS @ mfield @ |
Serial |
464 |
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| Author |
Luecke, C.A.; Arbic, B.K.; Bassette, S.L.; Richman, J.G.; Shriver, J.F.; Alford, M.H.; Smedstad, O.M.; Timko, P.G.; Trossman, D.S.; Wallcraft, A.J. |
| Title |
The Global Mesoscale Eddy Available Potential Energy Field in Models and Observations: GLOBAL LOW-FREQUENCY EDDY APE |
Type |
$loc['typeJournal Article'] |
| Year |
2017 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
122 |
Issue |
11 |
Pages |
9126-9143 |
| Keywords |
eddy available potential energy; mesoscale eddies; mixing; model‐ data comparison; ocean energy reservoirs; Argo |
| Abstract |
Global maps of the mesoscale eddy available potential energy (EAPE) field at a depth of 500 m are created using potential density anomalies in a high‐resolution 1/12.5° global ocean model. Maps made from both a free‐running simulation and a data‐assimilative reanalysis of the HYbrid Coordinate Ocean Model (HYCOM) are compared with maps made by other researchers from density anomalies in Argo profiles. The HYCOM and Argo maps display similar features, especially in the dominance of western boundary currents. The reanalysis maps match the Argo maps more closely, demonstrating the added value of data assimilation. Global averages of the simulation, reanalysis, and Argo EAPE all agree to within about 10%. The model and Argo EAPE fields are compared to EAPE computed from temperature anomalies in a data set of “moored historical observations” (MHO) in conjunction with buoyancy frequencies computed from a global climatology. The MHO data set allows for an estimate of the EAPE in high‐frequency motions that is aliased into the Argo EAPE values. At MHO locations, 15–32% of the EAPE in the Argo estimates is due to aliased motions having periods of 10 days or less. Spatial averages of EAPE in HYCOM, Argo, and MHO data agree to within 50% at MHO locations, with both model estimates lying within error bars observations. Analysis of the EAPE field in an idealized model, in conjunction with published theory, suggests that much of the scatter seen in comparisons of different EAPE estimates is to be expected given the chaotic, unpredictable nature of mesoscale eddies. |
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2169-9275 |
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$loc['no'] |
| Call Number |
COAPS @ rl18 @ |
Serial |
992 |
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| Author |
Savage, A.C.; Arbic, B.K.; Alford, M.H.; Ansong, J.K.; Farrar, J.T.; Menemenlis, D.; O'Rourke, A.K.; Richman, J.G.; Shriver, J.F.; Voet, G.; Wallcraft, A.J.; Zamudio, L. |
| Title |
Spectral decomposition of internal gravity wave sea surface height in global models |
Type |
$loc['typeJournal Article'] |
| Year |
2017 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
122 |
Issue |
10 |
Pages |
7803-7821 |
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2169-9275 |
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$loc['no'] |
| Call Number |
COAPS @ mfield @ |
Serial |
372 |
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| Author |
Savage, A.C.; Arbic, B.K.; Alford, M.H.; Ansong, J.K.; Farrar, J.T.; Menemenlis, D.; O'Rourke, A.K.; Richman, J.G.; Shriver, J.F.; Voet, G.; Wallcraft, A.J.; Zamudio, L. |
| Title |
Spectral decomposition of internal gravity wave sea surface height in global models: INTERNAL GRAVITY WAVE SEA SURFACE HEIGHT |
Type |
$loc['typeJournal Article'] |
| Year |
2017 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
122 |
Issue |
10 |
Pages |
7803-7821 |
| Keywords |
high-frequency motions; atmospheric pressure; dynamic height |
| Abstract |
Two global ocean models ranging in horizontal resolution from 1/128 to 1/488 are used to study the space and time scales of sea surface height (SSH) signals associated with internal gravity waves (IGWs). Frequency-horizontal wavenumber SSH spectral densities are computed over seven regions of the world ocean from two simulations of the HYbrid Coordinate Ocean Model (HYCOM) and three simulations of the Massachusetts Institute of Technology general circulation model (MITgcm). High wavenumber, high-frequency SSH variance follows the predicted IGW linear dispersion curves. The realism of high-frequency motions (>0:87 cpd) in the models is tested through comparison of the frequency spectral density of dynamic height variance computed from the highest-resolution runs of each model (1/258 HYCOM and 1/488 MITgcm) with dynamic height variance frequency spectral density computed from nine in situ profiling instruments. These high-frequency motions are of particular interest because of their contributions to the small-scale SSH variability that will be observed on a global scale in the upcoming Surface Water and Ocean Topography (SWOT) satellite altimetry mission. The variance at supertidal frequencies can be comparable to the tidal and low-frequency variance for high wavenumbers (length scales smaller than 50 km), especially in the higher-resolution simulations. In the highest-resolution simulations, the high-frequency variance can be greater than the low-frequency variance at these scales. |
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2169-9275 |
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$loc['no'] |
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COAPS @ rl18 @ |
Serial |
993 |
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Dukhovskoy, D.S.; Bourassa, M.A.; Petersen, G.N.; Steffen, J. |
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Comparison of the ocean surface vector winds from atmospheric reanalysis and scatterometer-based wind products over the Nordic Seas and the northern North Atlantic and their application for ocean modeling |
Type |
$loc['typeJournal Article'] |
| Year |
2017 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
122 |
Issue |
3 |
Pages |
1943-1973 |
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2169-9275 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
25 |
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Savage, A.C.; Arbic, B.K.; Richman, J.G.; Shriver, J.F.; Alford, M.H.; Buijsman, M.C.; Thomas Farrar, J.; Sharma, H.; Voet, G.; Wallcraft, A.J.; Zamudio, L. |
| Title |
Frequency content of sea surface height variability from internal gravity waves to mesoscale eddies |
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$loc['typeJournal Article'] |
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2017 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
122 |
Issue |
3 |
Pages |
2519-2538 |
| Keywords |
internal gravity waves; internal tides; spectral density |
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2169-9275 |
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$loc['no'] |
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COAPS @ mfield @ |
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14 |
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| Author |
Maksimova, E.V. |
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On the observed synoptic signal in the Mississippi-Alabama slope flow |
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$loc['typeJournal Article'] |
| Year |
2017 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
122 |
Issue |
1 |
Pages |
185-192 |
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2169-9275 |
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COAPS @ mfield @ |
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26 |
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Gonçalves, R.C.; Iskandarani, M.; Srinivasan, A.; Thacker, W.C.; Chassignet, E.; Knio, O.M. |
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A framework to quantify uncertainty in simulations of oil transport in the ocean |
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$loc['typeJournal Article'] |
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2016 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
121 |
Issue |
4 |
Pages |
2058-2077 |
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2169-9275 |
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COAPS @ mfield @ |
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36 |
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Dukhovskoy, D.S.; Myers, P.G.; Platov, G.; Timmermans, M.-L.; Curry, B.; Proshutinsky, A.; Bamber, J.L.; Chassignet, E.; Hu, X.; Lee, C.M.; Somavilla, R. |
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Greenland freshwater pathways in the sub-Arctic Seas from model experiments with passive tracers |
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2016 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
121 |
Issue |
1 |
Pages |
877-907 |
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Greenland Ice Sheet melting; Greenland freshwater; thermohaline circulation; Nordic Seas; sub-Arctic seas; Baffin Bay; Labrador Sea |
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2169-9275 |
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COAPS @ mfield @ |
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35 |
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Stukel, M.R.; Kahru, M.; Benitez-Nelson, C.R.; Décima, M.; Goericke, R.; Landry, M.R.; Ohman, M.D. |
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Using Lagrangian-based process studies to test satellite algorithms of vertical carbon flux in the eastern North Pacific Ocean |
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$loc['typeJournal Article'] |
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2015 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
| Volume |
120 |
Issue |
11 |
Pages |
7208-7222 |
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satellite-derived export; carbon export; model algorithms; mesozooplankton grazing; sinking particles; gravitational flux |
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2169-9275 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
113 |
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