Original scientific paper

Fractal analysis of suspended particles in seawater

Mladen Martinis ; Department of Physics, Ruđer Bošković Institute, P.O.B. 1016, HR-10001 Zagreb, CROATIA
Dubravko Risović ; Department of Physics, Ruđer Bošković Institute, P.O.B. 1016, HR-10001 Zagreb, CROATIA

Abstract

Light-scattering data of suspended clusters of particles in seawater have been analysed to find some evidence for fractal structure of the scatterers. The behaviour of the scattering intensity I(q) as a function of q suggests that the scattering medium consists of two kinds of particles, large ones, with fractal dimension 1.7 ± 0.1, resulting from a regular DLCA growing process, and smaller ones, with a considerably larger fractal dimension 2.7 ± 0.4, resulting from a more complex cluster-cluster aggregation process in which low sticking probabilities, restructuring and settling could be present. This conclusion is strongly supported by the I(q) curve which, in a log-log plot, exhibits two well defined linear regions. In interpreting data, it is assumed that the polydispersity of the scatterers is described by a smooth two-component particle-size distribution. The fractal structure of the scatterers is described by the behaviour of the scattering intensity from clusters of different size.

Keywords

Hrčak ID:

303811

URI

https://hrcak.srce.hr/303811

Publication date:

1.4.1998.

Article data in other languages: croatian

Visits: 498 *