Reed, D.W. 2007. Floods: feast and famine. Proc. WaPUG Autumn Conf., Blackpool, 7-9 November 2007, Paper 8, 9pp.
Counting flooding incidents, and assessing their rarity, form an integral part of performance assessment for sewer systems. In some conditions, there is marked clustering of flood events. Methods of representing inter-site dependence in extreme rainfalls relevant to stormwater sewer systems have been around for almost 20 years but are seldom used. The paper looks at what studies of inter-site dependence can reveal.