| Records |
| Author |
Ali, A.; Christensen, K.H.; Breivik, Ø.; Malila, M.; Raj, R.P.; Bertino, L.; Chassignet, E.P.; Bakhoday-Paskyabi, M. |
| Title |
A comparison of Langmuir turbulence parameterizations and key wave effects in a numerical model of the North Atlantic and Arctic Oceans |
Type |
$loc['typeJournal Article'] |
| Year |
2019 |
Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
| Volume |
137 |
Issue |
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Pages |
76-97 |
| Keywords |
Langmuir mixing parameterization Mixed layer depth Sea surface temperature Ocean heat content Stokes penetration depth |
| Abstract |
Five different parameterizations of Langmuir turbulence (LT) effect are investigated in a realistic model of the North Atlantic and Arctic using realistic wave forcing from a global wave hindcast. The parameterizations mainly apply an enhancement to the turbulence velocity scale, and/or to the entrainment buoyancy flux in the surface boundary layer. An additional run is also performed with other wave effects to assess the relative importance of Langmuir turbulence, namely the Coriolis-Stokes forcing, Stokes tracer advection and wave-modified momentum fluxes. The default model (without wave effects) underestimates the mixed layer depth in summer and overestimates it at high latitudes in the winter. The results show that adding LT mixing reduces shallow mixed layer depth (MLD) biases, particularly in the subtropics all year-around, and in the Nordic Seas in summer. There is overall a stronger relative impact on the MLD during winter than during summer. In particular, the parameterization with the most vigorous LT effect causes winter MLD increases by more than 50% relative to a control run without Langmuir mixing. On the contrary, the parameterization which assumes LT effects on the entrainment buoyancy flux and accounts for the Stokes penetration depth is able to enhance the mixing in summer more than in winter. This parametrization is also distinct from the others because it restrains the LT mixing in regions of deep MLD biases, so it is the preferred choice for our purpose. The different parameterizations do not change the amplitude or phase of the seasonal cycle of heat content but do influence its long-term trend, which means that the LT can influence the drift of ocean models. The combined impact on water mass properties from the Coriolis-Stokes force, the Stokes drift tracer advection, and the wave-dependent momentum fluxes is negligible compared to the effect from the parameterized Langmuir turbulence. |
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1463-5003 |
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COAPS @ user @ |
Serial |
1001 |
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| Author |
Ali, M.M.; Nagamani, P.V.; Sharma, N.; Venu Gopal, R.T.; Rajeevan, M.; Goni, G.J.; Bourassa, M.A. |
| Title |
Relationship between ocean mean temperatures and Indian summer monsoon rainfall |
Type |
$loc['typeJournal Article'] |
| Year |
2015 |
Publication |
Atmospheric Science Letters |
Abbreviated Journal |
Atmos. Sci. Lett. |
| Volume |
16 |
Issue |
3 |
Pages |
408-413 |
| Keywords |
ocean mean temperature; Indian summer monsoon rainfall; remote sensing; sea surface height anomaly |
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1530261X |
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$loc['no'] |
| Call Number |
COAPS @ mfield @ |
Serial |
94 |
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| Author |
Arruda, W.Z.; Campos, E.J.D.; Zharkov, V.; Soutelino, R.G.; da Silveira, I.C.A. |
| Title |
Events of equatorward translation of the Vitoria Eddy |
Type |
$loc['typeJournal Article'] |
| Year |
2013 |
Publication |
Continental Shelf Research |
Abbreviated Journal |
Continental Shelf Research |
| Volume |
70 |
Issue |
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Pages |
61-73 |
| Keywords |
Vitoria Eddy; Vitoria-Trindade ridge; Brazil Current; South Atlantic; Sea Surface Height; Altimetry |
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0278-4343 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
179 |
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| Author |
Glazer, R. H. |
| Title |
The Influence of Mesoscale Sea Surface Temperature Gradients on Tropical Cyclones |
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$loc['typeManuscript'] |
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2014 |
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Air-Sea Interaction; Numerical Modeling; Sea Surface Temperature; Tropical Cyclones; Tropical Meteorology |
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Department of Earth, Ocean, and Atmospheric Science |
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$loc['Master's thesis'] |
| Publisher |
Florida State University |
Place of Publication |
Tallahassee, FL |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
161 |
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| Author |
Hart, R.E.; Maue, R.N.; Watson, M.C. |
| Title |
Estimating Local Memory of Tropical Cyclones through MPI Anomaly Evolution |
Type |
$loc['typeJournal Article'] |
| Year |
2007 |
Publication |
Monthly Weather Review |
Abbreviated Journal |
Mon. Wea. Rev. |
| Volume |
135 |
Issue |
12 |
Pages |
3990-4005 |
| Keywords |
Hurricanes; Tropical cyclones; Sea surface temperature; Stability |
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0027-0644 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
698 |
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Hiester, H.R.; Morey, S.L.; Dukhovskoy, D.S.; Chassignet, E.P.; Kourafalou, V.H.; Hu, C. |
| Title |
A topological approach for quantitative comparisons of ocean model fields to satellite ocean color data |
Type |
$loc['typeJournal Article'] |
| Year |
2016 |
Publication |
Methods in Oceanography |
Abbreviated Journal |
Methods in Oceanography |
| Volume |
17 |
Issue |
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Pages |
232-250 |
| Keywords |
Satellite data; Ocean model; Ocean color; Sea surface salinity; Shape comparison; Hausdorff distance |
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2211-1220 |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
78 |
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Hughes, P. J. |
| Title |
The Influence of Small-Scale Sea Surface Temperature Gradients on Surface Vector Winds and Subsequent Impacts on Oceanic Ekman Pumping |
Type |
$loc['typeManuscript'] |
| Year |
2014 |
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Air-Sea Interaction; Sea Surface Temperature Gradients; SST-wind relationship; Surface Vector Winds |
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Department of Earth, Ocean and Atmospheric Science |
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Florida State University |
Place of Publication |
Tallahassee, FL |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
162 |
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Krishnamurthy, V.; Misra, V. |
| Title |
Observed ENSO teleconnections with the South American monsoon system |
Type |
$loc['typeJournal Article'] |
| Year |
2010 |
Publication |
Atmospheric Science Letters |
Abbreviated Journal |
Atmos. Sci. Lett. |
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ENSO; South America; monsoon variability; sea surface temperature |
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1530261X |
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$loc['no'] |
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COAPS @ mfield @ |
Serial |
351 |
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Murty, V.S.N. |
| Title |
A new technique for the estimation of sea surface salinity in the tropical Indian Ocean from OLR |
Type |
$loc['typeJournal Article'] |
| Year |
2004 |
Publication |
Journal of Geophysical Research |
Abbreviated Journal |
J. Geophys. Res. |
| Volume |
109 |
Issue |
C12 |
Pages |
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sea surface salinity; tropical Indian Ocean; outgoing longwave radiation; effective oceanic layer; 1997-1998 El Nino event; interannual variability |
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| ISSN |
0148-0227 |
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$loc['no'] |
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COAPS @ mfield @ |
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453 |
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| Author |
Nyadjro, E.S.; Jensen, T.G.; Richman, J.G.; Shriver, J.F. |
| Title |
On the Relationship Between Wind, SST, and the Thermocline in the Seychelles-Chagos Thermocline Ridge |
Type |
$loc['typeJournal Article'] |
| Year |
2017 |
Publication |
IEEE Geoscience and Remote Sensing Letters |
Abbreviated Journal |
IEEE Geosci. Remote Sensing Lett. |
| Volume |
14 |
Issue |
12 |
Pages |
2315-2319 |
| Keywords |
Altimetry; HYbrid Coordinate Ocean Model (HYCOM); Indian Ocean Dipole (IOD); ocean-atmosphere coupling; Rossby waves; sea surface temperature (SST); thermocline depth; winds |
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1545-598X |
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$loc['no'] |
| Call Number |
COAPS @ mfield @ |
Serial |
465 |
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