Excel data files of hourly rainfall and river height for three contrasting drainage basins in S Wales are used to construct and analyse flood hydrographs as both whiteboard and independent student activities. OS maps, sketch maps, photographs, videos and other Geographical Information Systems provide the background to an ‘Investigation into factors causing differing river flood levels’.

Flood hydrographs, hourly rainfall data, hourly river height data, R Wye, R Cynon, R Thaw