Glossary
Ash Catastrophe Model
Ash Catastrophe Model
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CONTENTS
What is an ash catastrophe model? An ash catastrophe model computes the probability and potential impact of volcanic ash fall on infrastructure and assets. It generates hazard maps and asset-level ash risk metrics for different return periods. Mitiga’s proprietary ash cat model is built on eruption catalogues and probabilistic ash fall simulations considering local wind conditions.
Example in context
An airport operator uses an ash catastrophe model to understand how often disruptive ash fall could occur and how it may affect airport operations.
Why it matters
Volcanic ash can disrupt aviation, damage buildings and critical infrastructure (transport, energy, and communication), and cause operational shutdowns and significant clean-up costs. Ash risk modelling helps organisations assess their exposure and plan for potential disruptions. Furthermore, insurance companies employ cat models to structure insurance policies for volcanic eruptions.
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