搜索结果: 1-15 共查到“海洋科学 Vortices”相关记录19条 . 查询时间(0.012 秒)
Signature of Large Aspect Ratio Roll Vortices in Synthetic Aperture Radar Images of Tropical Cyclones
Large Aspect Ratio Roll Vortices Synthetic Aperture Radar Images Tropical Cyclones
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2015/7/16
Synthetic aperture radar images of tropical cyclones have been processed into high-resolution surface wind vector fields. Examination of the surface wind divergence and wind stress curl show that wind...
Hydrodynamic Performance of Flapping-foil Propulsion in the Influence of Vortices
flapping-foil vortex numerical simulation hydrodynamic performance save energy
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2011/9/9
Fish are able to make good use of vortices. In a complex flow field, many fish continue to maintain both efficient cruising and maneuverability. Traditional man-made propulsion systems perform poorly ...
On the Evolution of Isolated, Nonlinear Vortices
Isolated Nonlinear Vortices axially symmetric vortex
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2009/2/13
The evolution of an isolated, axially symmetric vortex is calculated with a quasi-geostrophic, adiabatic, hydrostatic. β-plane, two vertical mode model. The circumstances of greatest interest are thos...
Joint Vortices, Eastward Propagating Eddies and Migratory Taylor Columns
Joint Vortices Migratory Taylor Columns
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2009/1/16
The behavior of an isolated pair of vortices consisting of two eddies situated on top of each other in a three-layer ocean is examined analytically. The amplitudes of both eddies are high and, consequ...
The Evolution of Balanced, Low-Mode Vortices on the β-Plane
Low-Mode Vortices β-Plane
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2009/1/12
Numerical solutions are examined for nearly axisymmetric geopotential monopole vortices whose vertical structure is essentially confined to the lowest few vertical modes. The vortex environment is a r...
The Vertical Motion of Submesoscale Coherent Vortices across Neutral Surfaces
Submesoscale coherent vortices Neutral Surfaces
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2009/1/9
Submesoscale coherent vortices (SCVs, “meddies” or “bullets”) are shown not to move along either potential density surfaces or neutral surfaces, due to the compressibility of sea water being a functio...
The Generation and Evolution of Mushroom-like Vortices
Mushroom-like Vortices Numerical simulations
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2008/12/23
Numerical simulations have been performed to understand the generation and evolution of mushroom-like patterns observed in remote sensing images of the ocean surface. A two-layer, shallow-water model ...
The Breakup of Langmuir Circulation and the Instability of an Array of Vortices
Langmuir Circulation side-scan sonar
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2008/12/22
The presence and pattern of Langmuir circulation can be detected using side-scan sonar. The circulation creates bands of subsurface bubbles, scatterers of high-frequency sound, in the downwelling regi...
Convective Flow in Baroclinic Vortices
Convective Flow Baroclinic Vortices
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2008/12/16
Convective flow in baroclinic vortices is studied analytically, taking viscosity ν, and thermal diffusivity κ into account. The meridional circulation depends strongly on the Prandtl number Pr = ν/κ. ...
The Evolution of Frontal-Geostrophic Vortices in a Two-Layer Ocean
Frontal-Geostrophic Vortices Two-Layer Ocean
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2008/12/12
The properties of large amplitude vortices are numerically investigated using a set of two-layer primitive equations. Numerical experiments are systematically conducted for the f and β plants, quasige...
The Propagation of Submesoscale Coherent Vortices
submesoscale coherent vortex density-weighted
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2008/12/12
A combined analytical and numerical examination of submesoscale coherent vortex (SCV) dynamics and propagation is conducted. This study is prompted by observations of the movement relative to their su...
Evolution of Isolated Interior Vortices in the Ocean
Isolated Interior Vortices anticyclonic Mediterranean Water eddies
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2008/11/18
The beta effect on the evolution of intrathermocline vortices, such as anticyclonic Mediterranean Water eddies (meddies), is investigated in a quasigeostrophic numerical model with fine high vertical ...
Interactions between Internal Waves and Boundary Layer Vortices
Internal Waves Boundary Layer Vortices
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2008/11/11
The effect of internal waves on linear vortices in a homogeneous boundary layer is examined by taking a simple model with a horizontal array of line vortices or vortex cells lying in a layer bounded a...
Monsoon Response of the Sea around Sri Lanka: Generation of Thermal Domesand Anticyclonic Vortices
Monsoon Response Sea Sri Lanka Thermal Domesand Anticyclonic Vortices
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2008/10/23
Results from an ocean general circulation model are used to study the response of the oceanic region surrounding Sri Lanka to monsoonal winds. East of Sri Lanka, a cold dome (Sri Lanka dome, SLD) deve...
Drift Velocity of Radiating Quasigeostrophic Vortices
Drift Velocity Radiating Quasigeostrophic Vortices
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2008/8/12
Because of the beta effect, quasigeostrophic monopole vortices propagate westward and excite Rossby waves. This wave radiation depletes the vortex energy, and causes cyclones to drift northward and an...