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Valid historical data for probabilistic risk analysis in natural disasters

机译:有效的历史数据可用于自然灾害中的概率风险分析

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摘要

With the changes in the nature and the society, risks will inevitably change. It implies that, with the passage of time, some historical data would be invalid for probabilistic risk analysis. In this paper, a model to acquire the valid data is suggested, which is based on the Mann- Kendall test to detect abrupt change-point on time series data. What's more, the typhoon risk analysis in Guangdong Province, China is used as a case study to show how to apply the model. The valid data of the intensities of typhoons and the related losses in the province for the probabilistic risk analysis is obtained from the data during the time from 1984 to 2012. Comparing with the results based on the set of invalid data and the set of all collected data, the assessed risk based on the valid data is more reliable, which could reflect the dynamics of the typhoon risk.
机译:随着自然和社会的变化,风险将不可避免地发生变化。这意味着随着时间的流逝,某些历史数据对于概率风险分析将无效。在本文中,提出了一个用于获取有效数据的模型,该模型基于Mann-Kendall检验来检测时间序列数据的突变点。此外,以中国广东省的台风风险分析为例,说明了如何应用该模型。从1984年至2012年期间的数据中,获得了台风强度和相关损失在全省进行概率风险分析的有效数据。与基于无效数据集和所有收集的数据集的结果进行比较数据,基于有效数据的评估风险更加可靠,可以反映台风风险的动态。

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