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
M. Becht
中科院分区:
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文献类型:
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作者:
T. Heckmann;V. Wichmann;M. Becht

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作为SEDAG(SEDiment Cascades in Alpine Geosystems)研究项目的一部分,本研究对作为一种地貌过程的全深雪崩进行了研究。关于这些事件的产沙量的第一批结果已在早先的一篇论文中提出(HECKMANN等人,2002年)。在这里,他们补充了新的数据和某些模型的描述,构成我们的建模方法。处置模型(确定性因子模型)用于确定潜在的雪崩起始区,而过程模型描绘了潜在的过程区域(横向扩展和跳动长度)沿着建模流动参数(例如速度)。 第一步空间建模的地貌活动的雪崩,即土壤和碎片的侵蚀和沉积,提出的经验与流动参数的基础上。
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.