Supplementary information files for Interactions between apparently ‘primary’ weather-driven hazards and their cost

Supplementary material to accompany Hillier, J. K., Macdonald, N., Leckebusch, G., Stavrinides (2015) Interactions between apparently primary weather-driven hazards and their cost. Env. Res. Lett. 10, 104003, doi:10.1088/1748-9326/10/10/104003 https://iopscience.iop.org/article/10.1088/1748-9326/10/10/104003A statistical analysis of the largest weather-driven hazards in the UK contradicts the typical view that each predominates in distinct events that do not interact with those of other hazard types (i.e., are 'primary'); this potentially has implications for any multi-hazard environments globally where some types of severe event are still thought to occur independently. By a first co-investigation of long (1884–2008) meteorological time-series and nationwide insurance losses for UK domestic houses (averaging £1.1 billion/yr), new systematic interactions within a 1 year timeframe are identified between temporally-distinct floods, winter wind storms, and shrink–swell subsidence events (P