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Spatio-temporal avalanche forecasting with Support Vector Machines

机译:支持向量机的时空雪崩预测

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This paper explores the use of the Support Vector Machine (SVM) as a data exploration tool and a predictive engine for spatio-temporal forecasting of snow avalanches. Based on the historical observations of avalanche activity, meteorological conditions and snowpack observations in the field, an SVM is used to build a data-driven spatio-temporal forecast for the local mountain region. It incorporates the outputs of simple physics-based and statistical approaches used to interpolate meteorological and snowpack-related data over a digital elevation model of the region. The interpretation of the produced forecast is discussed, and the quality of the model is validated using observations and avalanche bulletins of the recent years. The insight into the model behaviour is presented to highlight the interpretability of the model, its abilities to produce reliable forecasts for individual avalanche paths and sensitivity to input data. Estimates of prediction uncertainty are obtained with ensemble forecasting. The case study was carried out using data from the avalanche forecasting service in the Locaber region of Scotland, where avalanches are forecast on a daily basis during the winter months.
机译:本文探讨了使用支持向量机(SVM)作为雪崩时空预测的数据探索工具和预测引擎。基于雪崩活动的历史观测,气象条件和野外的积雪观测,支持向量机用于建立数据驱动的当地山区时空预测。它结合了简单的基于物理和统计方法的输出,这些方法用于在该区域的数字高程模型上内插气象数据和与积雪有关的数据。讨论了产生的预测的解释,并使用了近年来的观测结果和雪崩公告来验证模型的质量。展示了对模型行为的洞察力,以突出模型的可解释性,模型对单个雪崩路径产生可靠预测的能力以及对输入数据的敏感性。预测不确定性的估计是通过集合预测获得的。该案例研究是使用苏格兰Locaber地区雪崩预报服务的数据进行的,该地区在冬季每月进行雪崩预报。

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