著者

Hiroshi Serizawa Takashi Amemiya Kiminori Itoh

出版者

Japan Society for Simulation Technology

雑誌

日本シミュレーション学会英文誌 (ISSN:21885303)

巻号頁・発行日

vol.10, no.2, pp.221-246, 2023 (Released:2023-12-08)

参考文献数

43

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We present a minimal version of Landscape Evolution Models (LEMs) to capture the essence of tree-shaped channel network formation on the assumption of two mechanisms, soil erosion and diffusion. The continuous tectonic uplift is not required, which affects landscape evolution only at the starting point. We refer to the mathematical model as the Erosion-Diffusion Model (EDM). No steady state exists in the EDM except for the perfectly flat plane, which is realized at the ultimate final stage of the landform transition. It is suggested that generated channel patterns are temporal and transient creatures during long-term gravitational and erosional processes on the earth.