Hydrograph is an important tool for the representation of hydrological data such as precipitation, groundwater levels or discharges. The trainer includes a tank with a sand filling, which is flowed through by water.
The water is supplied to the tank via a precipitation device with two nozzles that can be adjusted separately via valves. To study different drainages, the water is drained either via a drainage pipe or a drain chamber, which is separated from the experimental section by a screen. The draining water is distributed over 17 transparent chambers. This creates a profile over time of the water drain.
Experiments:
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Effect of precipitation of varying duration or intensity on soils with different saturation
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Record hydrographs after precipitation
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Storage capacity of soils with different saturation
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Compare natural dewatering with dewatering via drainage pipe
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Influence of rainwater retention basin on the hydrograph
