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首页> 外文期刊>Natural hazards and earth system sciences >Automated snow avalanche release area delineation - validation of existing algorithms and proposition of a new object-based approach for large-scale hazard indication mapping
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Automated snow avalanche release area delineation - validation of existing algorithms and proposition of a new object-based approach for large-scale hazard indication mapping

机译：自动雪雪崩释放区域描绘 - 验证现有算法和新对象的大规模危险指示映射的基于对象方法的命题

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摘要

Snow avalanche hazard is threatening people and infrastructure in all alpine regions with seasonal or permanent snow cover around the globe. Coping with this hazard is a big challenge and during the past centuries, different strategies were developed. Today, in Switzerland, experienced avalanche engineers produce hazard maps with a very high reliability based on avalanche database information, terrain analysis, climatological data sets and numerical modeling of the flow dynamics for selected avalanche tracks that might affect settlements. However, for regions outside the considered settlement areas such area-wide hazard maps are not available mainly because of the too high cost, in Switzerland and in most mountain regions around the world. Therefore, hazard indication maps, even though they are less reliable and less detailed, are often the only spatial planning tool available. To produce meaningful and cost-effective avalanche hazard indication maps over large regions (regional to national scale), automated release area delineation has to be combined with volume estimations and state-of-the-art numerical avalanche simulations.
机译：雪雪崩危害在全球季节性或永久雪覆盖的所有高山地区威胁着人和基础设施。应对这一危险是一个重要的挑战，在过去几个世纪中，发展了不同的策略。如今，在瑞士，经验丰富的雪崩工程师，基于雪崩数据库信息，地形分析，气候数据集和可能影响定居点的所选雪崩轨道的流动动态的数值模型，具有非常高的可靠性。然而，对于所考虑的解决方案以外的地区，这种领域宽的危险地图不是主要是因为在瑞士和世界各地的大多数山地地区的成本过高。因此，危险指示映射，即使它们不太可靠，更少详细，通常是唯一可用的空间规划工具。为了在大地区（区域达国家规模）上产生有意义和成本效益的雪崩危险指示，自动释放区域描绘必须与体积估计和最先进的数值雪崩模拟相结合。

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