STRUCTURE AND PROPERTIES OF THE ATTRACTOR OF A MARINE DYNAMICAL SYSTEM

We investigate the properties of a marine dynamical system by means of time series of the sea-level height at four locations in the Saronico s Gulf in the Aegean Sea, Greece. In order to characterize the dynamic s, we estimate the dimension of the underlying system attractor, and w e compute its Lyapunov exponents. Dimension estimates indicate that th e dynamics can be explained by a low-dimensional deterministic dynamic al system. Lyapunov exponent estimates further substantiate the above conclusion, while at the same time, indicate that the dynamical system is a rather nonuniform chaotic one.