A model to assess tephra clean-up requirements in urban environments

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• 作者：Josh Hayes ; Thomas M. Wilson ; Natalia I. Deligne…
• 关键词：Hazard ; Risk ; Volcanic ash ; Waste ; Disaster ; Recovery ; Response ; Planning ; Auckland ; New Zealand ; Auckland Volcanic Field
• 刊名：Journal of Applied Volcanology
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：6
• 期：1
• 全文大小：4098KB
• 刊物主题：Geology; Geophysics/Geodesy; Natural Hazards;
• 出版者：Springer Berlin Heidelberg
• ISSN：2191-5040
• 卷排序：6

文摘

Tephra falls can cause a range of impacts to communities by disrupting, contaminating and damaging buildings and infrastructure systems, as well as posing a potential health hazard. Coordinated clean-up operations minimise the impacts of tephra on social and economic activities. However, global experience suggests clean-up operations are one of the most challenging aspects of responding to and recovering from tephra falls in urban environments. Here, we present a method for modelling coordinated municipal-led (town/district level authorities) tephra clean-up operations to support pre-event response and recovery planning. The model estimates the volume of tephra to be removed, clean-up duration, and direct costs. The underpinning component of the model is a scalable clean-up response framework, which identifies and progressively includes more urban surfaces (e.g., roofs, and roads) requiring clean-up with increasing tephra thickness.