S10 - Rainfall Hydrographs

The S10 Rainfall Hydrographs apparatus sets out to demonstrate, on a small scale, some of the physical processes found in hydrology.
These fall into two related categories:
The relationship between rainfall and runoff from catchment areas of variable permeability and the abstraction of ground water by wells, with or without surface recharge from rainfall
The part of the hydrological cycle bounded by the arrival of ‘net rainfall’ on the ground surface and the catchment runoff by surface streams