Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 29 for “"Volume transport"”.
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The ramifications of diffusive volume transport in classical fluid mechanics
… a fluid continuum, m, is supposed equal to the volume velocity v[sub]v. The latter differs from the barycentric velocity V[sub]m by the vector field j[sub]v, where j[sub]v = v[sub]v - v[sub]m represents the heretofore largely ignored diffusive transport of volume. We will begin by giving a …
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Studies on the hydrodynamic equations based on the theory of diffusive volume transport
… theory has postulated that the momentum per unit volume of fluid differs from the mass flux whenever there are density gradients in the fluid resulting from the molecular transport of heat or mass. In such cases, the Navier-Stokes equations are unable to correctly predict the continuum fields and …
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Investigating the relationship between volume transport and sea surface height in the Agulhas Current System
The relationship between the volume transport of the Agulhas Current at 34°S (the position of the Agulhas Current Time-series array) and the gradient of sea surface height across the current was investigated using a regional Hybrid Coordinate Ocean Model. Previous studies have suggested a high …
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The Gulf Stream: along-stream evolution of volume transport and water properties observed by underwater gliders
… in the Earth’s climate system with its poleward volume and heat transports being major components of the upper limb of the Atlantic Meridional Overturning Circulation. Extensive observations collected using Spray autonomous underwater gliders from 2004 through 2020 fill a 1500-km-long gap in …
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The Gulf Stream: Along-stream evolution of volume transport and water properties observed by underwater gliders
… in the Earth’s climate system with its poleward volume and heat transports being major components of the upper limb of the Atlantic Meridional Overturning Circulation. Extensive observations collected using Spray autonomous underwater gliders from 2004 through 2020 fill a 1500-km-long gap in …
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Structure and Coherence of flow through a Tidally Energetic Channel measured by High Frequency Radar
… is assessed, permitting the estimate of the volume transport intotheNorth Sea(NS). This research focuses onusing the HFR data, together with the other available in situobservations, hydrodynamic model output and meteorological data, to better understand the vertical structure and coherence of …
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Vortices of the Mozambique ridge current
… (i.e. temperature, salinity, density, velocity, volume transport, energy) and distribution of such vortices? How and where are the vortices generated, and what are their lifetime and eventual fate? In all, more than 500 routine hydrographic stations were occupied to collect data on water …
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Downstream evolution of ocean properties and associated fluxes in the Greater Agulhas Current System: Ad hoc Argo experiments and modeling
… trapped depths of 595 ± 294 m (914 ± 107 m), volume transport of 13.4 ± 5.2 Sv (21.2 ± 9.1 Sv), heat flux of -0.07 ± 0.06 PW (-0.2 ± 0.09 PW) and freshwater flux of 0.04 ± 0.04 Sv (0.09 ± 0.05 Sv). These results highlight the role of Madagascar cyclonic eddies as transporters of cooled and …
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Dynamics of Dipoles in the Middle Atlantic Bight
… and dipole energies, as well as an estimate of volume transport across a 150 km section representing the NAB shelf-slope front. In addition, four different methods for estimating the location of the ring and cyclone perimeters are compared.</p> <p>Results are also presented for two evolutionary …
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On the warm bias along the South-West African Coast in coupled models : an oceanic perspective
… in the boundary layer. The vertical heat transport decreases even when the volume transport is unchanged because of its nonlinear relationship with the magnitude of the upwelling velocity. Based on the scaling of the idealized model simulations, a simplified calculation shows that the …
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On the warm bias along the South-West African Coast in coupled models : an oceanic perspective
… in the boundary layer. The vertical heat transport decreases even when the volume transport is unchanged because of its nonlinear relationship with the magnitude of the upwelling velocity. Based on the scaling of the idealized model simulations, a simplified calculation shows that the …
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Impactos do El Niño 1997/1998 sobre a dinâmica da Corrente do Brasil
… in order to investigate potential changes in the volume transport and in the heat transport of the BC that could be associated with changes in the local Wind Stress Curl field. To correlate the probable impacts of El Niño in the oceanic and atmospheric variables the multivariate ENSO Index (MEI) …
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Studies of South China Sea circulation and thermal structure using a three dimensional numerical model
… is shown to be important to the energy and volume transport of baroclinic eddy features, but otherwise insignificant. Boundary transport from open lateral boundaries is determined to be of considerable importance to summer circulation and thermal structure, with little effect found for the …
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Sensitivity of the Estuarine-shelf Exchange in Mississippi Coastal Waters to River Diversions and Linkage Pathway Bathymetry: A Modeling Study
… processes, including flushing time, sediment transport, and larval dispersion. This study examines the exchange flow in the MS Sound by estimating the volume transport and salt transport along the seven tidal inlets in 2019 by using msbCOAWST, the specifically designed coupled model’s …
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A descriptive physical analysis of water movement in the South West African Indian Ocean during the Northeast monsoon season
… vertical sections. In addition the detailed volume transport and the velocity structure for each vertical section were calculated. The results pointed to a significant variation in transport and velocity structure from year to year. The large scale circulation in depth of the ocean is …
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Spatio-temporal characteristics of the Agulhas leakage: a model inter-comparison study
… the variability of the Agulhas leakage, the volume transport of water from the Indian Ocean to the South Atlantic Ocean, is highly relevant due to its potential contribution to the Atlantic Meridional Overturning Circulation (AMOC) and the global circulation of heat, salt and freshwater, …
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The structure of the Kuroshio west of Kyushu
… and the recirculation in the slope region. The volume, salt and heat transports of the Kuroshio during the January 1986 survey have been cakulated using the absolute geostrophic velocity and CTD data. The volume transport of the Kuroshio west of Kyushu in January 1986 was 31.7± 2.0 Sv, which is …
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The Brazil current and intermediate Western Boundary Current flows through the Vitória-Trindade ridge
… the Besnard Bank and Monte Vitória, the greater volume transport was observed. The importance of SACW and AAIW in the IWBC flow was comparable between 22 and 19 °S. At 19.5 ° S it was possible to verify that the IWBC was organized as a single and intense branch. Cyclonic and anti-cyclonic eddies, …
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Seasonality of the Agulhas Current with respect to near- and far-field winds
… an austral winter-spring maximum in poleward volume transport, whilst observations reveal an austral summertime (February-March) maximum. Here, the role of winds on Agulhas Current seasonality is investigated using shallow water models, satellite measurements, and a 23-year transport proxy …
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The East Greenland Coastal Current : its structure, variability, and large-scale impact
… Accounting for the wind-induced effects, the volume transport of the combined EGC/EGCC system is found to be roughly constant (-2 Sv) over the study domain, from 68*N to Cape Farewell near 60°N. The corresponding freshwater transport increases by roughly 60% over this distance (59 to 96 mSv, …
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