Multifractal properties of evolving convective systems over tropical South America

Abstract

This paper examines variations in multifractal properties of evolving mesoscale convective systems over tropical South America using infrared satellite images and a tracking technique. It is shown that multifractal coefficients have diurnal variation and seem to be modulated by intraseasonal low-level circulations. This remote sensing approach has potential application to infer convective-scale processes occurring in individual mesoscale systems.