Sediment transport by avalanches in the Bavarian Alps revisited - a perspective on modelling
Sediment transport by avalanches in the Bavarian Alps revisited - a perspective on modelling
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重新审视巴伐利亚阿尔卑斯山雪崩带来的沉积物输送——建模视角
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
M. Becht
中科院分区:
文献类型:
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作者:
T. Heckmann;V. Wichmann;M. Becht
Full-depth snow avalanches as a geomorphic process are investigated in this study, which is part of the SEDAG (SEDiment cascades in Alpine Geosystems) research project. First results concerning the sediment yield of these events were presented in an earlier paper (HECKMANN ET AL. 2002). Here, they are supplemented with new data and a description of certain models constituting our modelling approach. A disposition model (certainty factor model) is used to determine potential avalanche starting zones, while a process model delineates the potential process area (lateral spread and runout length) along with modelling flow parameters (e.g. velocity).
First steps towards spatial modelling of the geomorphic activity of snow avalanches, i.e. erosion and deposition of soil and debris, are presented on the basis of empirical correlation with flow parameters.