Abstract
Abstract The nonlinear open system cloud is analyzed in this basic study in the context of the theory of self-organization. Emphasis is placed on the microphysical processes of riming, accretion, and sedimentation in a supercooled cloud containing several types of precipitation particles. These processes are mathematically described using a parameterization scheme of the Kessler type. This model of the competition of precipitation particle types for cloud water is analogous to the famous predator-prey model in population dynamics. The models differ, however, in the role of the exponents in the transformation rates, which can be interpreted as control parameters for the cloud physics model. The number as well as the type of attractors depend on a set of parameters including, for example, the attributes of the chosen type of precipitation particles and the prescribed external source rates. If only spherically shaped precipitation particles are considered, the system is characterized by a single point attrac...
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