Analogue modelling of relief dynamics |
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| Institution: | 1. Xinjiang Research Center for Mineral Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;2. Key Laboratory of Orogenic Belt of Crustal Evolution Ministry of Education, School of Earth and Space Sciences, Peking University, Beijing 100871, China;3. Geomagnetism Laboratory, Department of Earth and Ocean Sciences, University of Liverpool, Liverpool L69 7ZE, UK;1. Department of Geology and Geography, West Virginia University, Morgantown, WV, USA;2. United States Forest Service, Rocky Mountain Research Station, Fort Collins, CO, USA;3. Department of Earth and Environmental Sciences, University of Rochester, Rochester, NY, USA |
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| Abstract: | Natural landscape analysis and numerical modelling point to a lack of physical data on relief dynamics. Experimental modelling is therefore an interesting approach for obtaining physical information on eroded systems with runoff transportation and topographic incision. The main technical challenge, in reproducing regional topography at the laboratory scale, is to obtain mm-scale incisions and a limitation of the smoothing action of diffusive transport processes. An experimental design using newly developed rain making apparatus and silica as a model material, satisfies the required conditions, and allows simulation of geomorphic instabilities. An example of “plateau instability” modelling is presented to illustrate the suitability of this experimental procedure. |
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