*2.2. Bristol Research Site*

For the Bristol research site, the Infoworks ICM was also employed at a city-wide level. In contrast to the FIC Climate data used in the Barcelona case, the Bristol case study's climate data was derived from UKCP09 [9] predictions. Table 2 shows a comparison of the associated rainfall depths of a 1 in 100-year, 60-min duration event for BAU in Bristol based on UKCP09. From this analysis, for a comparative study of pluvial flooding, the upper end (high emissions scenario) and upper epoch (furthest future projection: 2071-2100) were selected for the climate change scenarios as they show a comparative climate change uplift (highlighted in Table 2).


**Table 2.** Synthetic rainfall depths from a 1 in 100-year, 60-min duration event derived from UKCP09 climate change projections.

For the Bristol research site, we were limited with the number of return periods available from the flood model outputs. For the Baseline scenarios, we used 1 in 10, 30, and 100-year return periods and for the Future Climate Change scenario, we selected the 1 in 10, 20, and 100-year scenario with the 1 in 20 Year being deemed to be the closest available approximation to the Baseline 1 in 30 year event with climate change uplift applied.
