Rainfall and Case Studies Location Key information on rainfall/discharge/flood Cumbria Factor Rainfall totals 2015-2016 Received 341.4mm in 24hrs , Damage total = £5.8bn Insurance claims = £1.5bn Gradient Since 09’ floods = £1.8bn on defences Steep slope = reduced infiltration = Increased run-off £2.2bn was pledged (0.7bn) Permeability Impermeable Increased runoffs El Nino/Climate Change More frequent/intense storms Bangladesh Rainfall totals 2017 - June June/July (1000mm) 300mm Floods and mudslides 156 dead 5000 buildings destroyed Pressure Changes Rank? ITCZ Mountains Boscastle Impermeable surfaces Channel Changes Flood management Gradient Rainfall totals