The Framework of Earth System Cellular Automata Based on SDOG-ESSG and Its Preliminary Experiment

doi:10.11947/j.AGCS.2016.F005

Abstract

Abstract: Cellular Automata (CA) has been widely adopted in atmosphere, hydrodynamics, geophysics and geoscience for its simple structure and capability of simulating complex system. Existing CAs in geoscience ignore the restraints of gravity, and do earth system processes simulation under the constraints of Euclidean, which is not in accord with the tendency of state delivery from one cell to cell, and will produce some distortions on the results. This paper is to propose an Earth System Cellular Automata (ESCA) based on the restraint of gravity. The framework, including cell representation and construction, and neighbor model based on SDOG-ESSG, was proposed in the paper. As evolution rules are highly depended on actual problems, the problem of heat conduction in the Crust was taken as an example to design an evolution rule for the ESCA by imposing a discretization on thermodynamics law. Finally, a preliminary experiment and a comparison with numerical simulation in local scale were carried out. Results showed that, ESCA is reliable to some extent with its relative error limited to 27% comparing with numerical simulation. ESCA can be a new way of simulation for earth system process.

Key words: cellular automata, heat conduction, simulation, SDOG-ESSG, global grid

CLC Number:

P208

YU Jieqing, SHI Zhen, WU Lixin, XING Songwei, JIA Yongji. The Framework of Earth System Cellular Automata Based on SDOG-ESSG and Its Preliminary Experiment[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(S1): 40-47.

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