Records |
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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Edition |
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ISSN |
0148-0227 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
367 |
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Author |
Xu, X.; Bower, A.; Furey, H.; Chassignet, E.P. |
Title |
Variability of the Iceland-Scotland Overflow Water Transport Through the Charlie-Gibbs Fracture Zone: Results From an Eddying Simulation and Observations |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. Oceans |
Volume |
123 |
Issue |
8 |
Pages |
5808-5823 |
Keywords |
Iceland; Scotland overflow water; Charlie; Gibbs fracture zone; variability; volume transport; eddying simulation |
Abstract |
Observations show that the westward transport of the Iceland‐Scotland overflow water (ISOW) through the Charlie‐Gibbs Fracture Zone (CGFZ) is highly variable. This study examines (a) where this variability comes from and (b) how it is related to the variability of ISOW transport at upstream locations in the Iceland Basin and other ISOW flow pathways. The analyses are based on a 35‐year 1/12° eddying Atlantic simulation that represents well the main features of the observed ISOW in the area of interest, in particular, the transport variability through the CGFZ. The results show that (a) the variability of the ISOW transport is closely correlated with that of the barotropic transports in the CGFZ associated with the meridional displacement of the North Atlantic Current front and is possibly induced by fluctuations of large‐scale zonal wind stress in the Western European Basin east of the CGFZ; (b) the variability of the ISOW transport is increased by a factor of 3 from the northern part of the Iceland Basin to the CGFZ region and transport time series at these two locations are not correlated, further suggesting that the variability at the CGFZ does not come from the upstream source; and (c) the variability of the ISOW transport at the CGFZ is strongly anticorrelated to that of the southward ISOW transport along the eastern flank of the Mid‐Atlantic Ridge, suggesting an out‐of‐phase covarying transport between these two ISOW pathways. |
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ISSN |
2169-9275 |
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$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
952 |
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Author |
Ansong, J.K.; Arbic, B.K.; Simmons, H.L.; Alford, M.H.; Buijsman, M.C.; Timko, P.G.; Richman, J.G.; Shriver, J.F.; Wallcraft, A.J. |
Title |
Geographical Distribution of Diurnal and Semidiurnal Parametric Subharmonic Instability in a Global Ocean Circulation Model |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Journal of Physical Oceanography |
Abbreviated Journal |
J. Phys. Oceanogr. |
Volume |
48 |
Issue |
6 |
Pages |
1409-1431 |
Keywords |
Baroclinic flows; Internal waves; Nonlinear dynamics; Ocean dynamics; Baroclinic models; Ocean models |
Abstract |
The evidence for, baroclinic energetics of, and geographic distribution of parametric subharmonic instability (PSI) arising from both diurnal and semidiurnal tides in a global ocean general circulation model is investigated using 1/12.5° and 1/25° simulations that are forced by both atmospheric analysis fields and the astronomical tidal potential. The paper examines whether PSI occurs in the model, and whether it accounts for a significant fraction of the tidal baroclinic energy loss. Using energy transfer calculations and bispectral analyses, evidence is found for PSI around the critical latitudes of the tides. The intensity of both diurnal and semidiurnal PSI in the simulations is greatest in the upper ocean, consistent with previous results from idealized simulations, and quickly drops off about 5° from the critical latitudes. The sign of energy transfer depends on location; the transfer is positive (from the tides to subharmonic waves) in some locations and negative in others. The net globally integrated energy transfer is positive in all simulations and is 0.5%�10% of the amount of energy required to close the baroclinic energy budget in the model. The net amount of energy transfer is about an order of magnitude larger in the 1/25° semidiurnal simulation than the 1/12.5° one, implying the dependence of the rate of energy transfer on model resolution. |
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ISSN |
0022-3670 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
976 |
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Author |
Bastola, S.; Misra, V.; Li, H. |
Title |
Seasonal Hydrological Forecasts for Watersheds over the Southeastern United States for the Boreal Summer and Fall Seasons |
Type |
$loc['typeJournal Article'] |
Year |
2013 |
Publication |
Earth Interactions |
Abbreviated Journal |
Earth Interact. |
Volume |
17 |
Issue |
25 |
Pages |
1-22 |
Keywords |
Seasonal climate forecast; Ensemble streamflow prediction; Rainfall–runoff model |
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ISSN |
1087-3562 |
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$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
207 |
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Author |
Holbach, H.M.; Bourassa, M.A. |
Title |
The Effects of Gap-Wind-Induced Vorticity, the Monsoon Trough, and the ITCZ on East Pacific Tropical Cyclogenesis |
Type |
$loc['typeJournal Article'] |
Year |
2014 |
Publication |
Monthly Weather Review |
Abbreviated Journal |
Mon. Wea. Rev. |
Volume |
142 |
Issue |
3 |
Pages |
1312-1325 |
Keywords |
Central America; Remote sensing; Vorticity; Valley/mountain flows; Tropical cyclones; Cyclogenesis/cyclolysis |
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Edition |
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ISSN |
0027-0644 |
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$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
130 |
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Author |
Dukhovskoy, D.S.; Morey, S.L.; O'Brien, J.J. |
Title |
Generation of baroclinic topographic waves by a tropical cyclone impacting a low-latitude continental shelf |
Type |
$loc['typeJournal Article'] |
Year |
2009 |
Publication |
Continental Shelf Research |
Abbreviated Journal |
Continental Shelf Research |
Volume |
29 |
Issue |
1 |
Pages |
333-351 |
Keywords |
Baroclinic motion; Topographic waves; Low-frequency internal waves; Hurricanes; Caribbean Sea |
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ISSN |
0278-4343 |
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Funding |
NOAA, NASA |
Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
397 |
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Author |
Zhao, X.; Zhou, C.; Zhao, W.; Tian, J.; Xu, X. |
Title |
Deepwater overflow observed by three bottom-anchored moorings in the Bashi Channel |
Type |
$loc['typeJournal Article'] |
Year |
2016 |
Publication |
Deep Sea Research Part I: Oceanographic Research Papers |
Abbreviated Journal |
Deep Sea Research Part I: Oceanographic Research Papers |
Volume |
110 |
Issue |
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Pages |
65-74 |
Keywords |
Deepwater overflow; Bashi Channel; Volume transport; Spatial structure; Temporal variability |
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Edition |
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ISSN |
0967-0637 |
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$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
92 |
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Author |
Morey, S.L.; Dukhovskoy, D.S. |
Title |
A downscaling method for simulating deep current interactions with topography – Application to the Sigsbee Escarpment |
Type |
$loc['typeJournal Article'] |
Year |
2013 |
Publication |
Ocean Modelling |
Abbreviated Journal |
Ocean Modelling |
Volume |
69 |
Issue |
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Pages |
50-63 |
Keywords |
Ocean modeling; Model nesting; Topographic flows; USA; Gulf of Mexico; Sigsbee Escarpment |
Abstract |
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ISSN |
1463-5003 |
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Funding |
DeepStar, HYCOM Consortium |
Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
183 |
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Author |
Arrocha, G. |
Title |
Variability of Intraseasonal Precipitation Extremes Associated with ENSO in Panama |
Type |
$loc['typeManuscript'] |
Year |
2006 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
Extreme Events Central America, Low Level Circulation |
Abstract |
Extensive analysis has been conducted over past decades showing the impacts of El Niño-Southern Oscillation (ENSO) on various regions throughout the world. However, these studies have not analyzed data from many stations in Panama, or they have not analyzed long periods of observations. For these reasons, they often miss climatological differences within the region induced by topography, or they do not possess enough observations to adequately study its climatology. Accordingly, the current study focuses on ENSO impacts on precipitation specific to the Isthmus of Panama. Results will be useful for agricultural and water resources planning and Panama Canal operations. Monthly total precipitation data were provided by Empresa de Transmisión Eléctrica S.A., which includes 32 stations with records from 1960 to 2004. The year is split into three seasons: two wet seasons (Early and Late Wet), one dry season (Dry). The country is also divided into regions according to similarities in the stations' climatology and geographic locations. Upper and lower precipitation extremes are associated with one of the three ENSO phases (warm, cold or neutral) to estimate their percentages of occurrences. The differences between each ENSO phases' seasonal precipitation distributions are statistically examined. Statistical analyses show effects of ENSO phases that vary by season and geographical region. Cold and warm ENSO years affect the southwestern half of the country considerably during the Late Wet season. Cold ENSO phases tend to increase rainfall, and the warm phase tends to decrease it. The opposite is true for the Caribbean coast. The Dry season experiences drier conditions in warm ENSO years, and the Early Wet season does not show any statistically significant difference between ENSO years' rainfall distributions. |
Address |
Department of Meteorology |
Corporate Author |
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Thesis |
$loc['Master's thesis'] |
Publisher |
Florida State University |
Place of Publication |
Tallahassee, FL |
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$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
620 |
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Author |
Putnam, W. M. |
Title |
Development of the Finite-Volume Dynamical Core on the Cubed-Sphere |
Type |
$loc['typeManuscript'] |
Year |
2007 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
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Keywords |
Cubed-Sphere, Shallow Water, Advection, Dynamical Core, Finite-Volume |
Abstract |
The finite-volume dynamical core has been developed for quasi-uniform cubed-sphere grids within a flexible modeling framework for direct implementation as a modular component within the global modeling efforts at NASA, GFDL-NOAA, NCAR, DOE and other interested institutions. The shallow water equations serve as a dynamical framework for testing the implementation and the variety of quasi-orthogonal cubed-sphere grids ranging from conformal mappings to those numerically generated via elliptic solvers. The cubed-sphere finite-volume dynamical core has been parallelized with a 2-dimensional X-Y domain decomposition to achieve optimal scalability to 100,000s of processors on today's high-end computing platforms at horizontal resolutions of 0.25-degrees and finer. The cubed-sphere fvcore is designed to serve as a framework for hydrostatic and non-hydrostatic global simulations at climate (4- to 1-deg) and weather (25- to 5-km) resolutions, pushing the scale of global atmospheric modeling from the climate/synoptic scale to the meso- and cloud-resolving scale. |
Address |
Department of Meteorology |
Corporate Author |
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Thesis |
$loc['Ph.D. thesis'] |
Publisher |
Florida State University |
Place of Publication |
Tallahassee, FL |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
588 |
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