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Fractal trajectories in a numerical model of the upper Indian Ocean
Fractal trajectories numerical model upper Indian Ocean
2009/11/16
A wind-driven numerical model of the Indian Ocean is used to examine the horizontal statistics of hundreds of passive tracers spread evenly over the model domain. The distribution covers several dynam...
Nonlinear dynamics of wind waves:multifractal phase/time effects
Nonlinear dynamics of wind waves multifractal phase time effects
2009/11/16
In addition to the bispectral coherence method, phase/time analysis of analytic signals is another promising avenue for the investigation of phase effects in wind waves. Frequency spectra of phase flu...
Nonequilibrium plankton community structures in an ecohydrodynamic model system
Nonequilibrium plankton community structures ecohydrodynamic model system
2009/11/16
Due to the local and global impacts of algae blooms and patchiness on water quality, carbon cycling and climate, models of plankton dynamics are of current interest. In this paper, the temporal and sp...
Asymmetry of wind waves studied in a laboratory tank
Asymmetry of wind waves laboratory tank
2009/11/16
Asymmetry of wind waves was studied in laboratory tank tinder varied wind and fetch conditions using both bispectral analysis of wave records and third-order statistics of the surface elevation. It is...
Multifractal intermittency of Eulerian and Lagrangian turbulence of ocean temperature and plankton fields
Multifractal intermittency Eulerian and Lagrangian turbulence ocean temperature plankton fields
2009/11/16
In this paper, we present evidence that intermittency of Eulerian and Lagrangian turbulence of ocean temperature and plankton fields is multifractal and furthermore can be analysed with the help of un...
Nonlinear wave energy modelling in the surf zone
Nonlinear wave energy modelling surf zone
2009/11/16
Breaking wave energy in the surf zone is modelled through the incorporation of the time dependent energy balance equation in a non linear dispersive wave propagation model. The energy equations solved...
Eddy growth and mixing in mesoscale oceanographic flows
Eddy growth and mixing mesoscale oceanographic flows
2009/11/13
We study the relation between changes in the Eulerian topology of a two dimensional flow and the mixing of fluid particles between qualitatively different regions of the flow. In general time dependen...
A fractal model for the sea state bias in radar altimetry
fractal model sea state bias radar altimetry
2009/11/13
The Kirchhoff approximation is used to determine the sea state bias in radar altimetry. A weakly nonlinear model of the sea waves is used to derive the joint moments of two different points separated ...
Deterministic chaos at the ocean surface:applications and interpretations
Deterministic chaos ocean surface applications interpretations
2009/11/13
Ocean surface, grazing-angle radar backscatter data from two separate experiments, one of which provided coincident time series of measured surface winds, were found to exhibit signatures of determini...
Permanent bedforms in a theoretical model of wave-sea-bed interactions
Permanent bedforms theoretical model wave-sea-bed interactions
2009/11/12
The interaction between sea waves and a deformable sea-bed is studied with a simple two-layer model in which the upper-layer fluid is inviscid and the lower-layer fluid is bi-viscous to account for no...
The predictability of large-scale wind-driven flows
predictability large-scale wind-driven flows
2009/11/12
The singular values associated with optimally growing perturbations to stationary and time-dependent solutions for the general circulation in an ocean basin provide a measure of the rate at which solu...
Long waves over a bi-viscous seabed:transverse patterns
Long waves bi-viscous seabed transverse patterns
2009/11/12
The coupled interaction of long standing hydrodynamic waves with a deformable non-Newtonian seabed is examined using a two-layer model for which the upper layer fluid is inviscid and the lower layer i...
Impulse exchange at the surface of the ocean and the fractal dimension of drifter trajectories
Impulse exchange surface of the ocean fractal dimension drifter trajectories
2009/11/12
An impulse-based model is developed to represent a coupling between turbulent flow in the atmosphere and turbulent flow in the ocean. In particular, it is argued that the atmosphere flowing horizontal...
Scaling statistics in a critical,nonlinear physical model of tropical oceanic rainfall
Scaling statistics critical,nonlinear physical model tropical oceanic rainfall
2009/11/12
Over the last two decades, concepts of scale invariance have come to the fore in both modeling and data analysis in hydrological precipitation research. With the advent of the use of the multiplicativ...
Soliton interaction as a possible model for extreme waves in shallow water
Soliton interaction possible model extreme waves shallow water
2009/11/12
Interaction of two long-crested shallow water waves is analysed in the framework of the two-soliton solution of the Kadomtsev-Petviashvili equation. The wave system is decomposed into the incoming wav...