The study catchment has been instrumented for measuring
rainfall, runoff and sediment yield since 1978. Runoff from the
catchment is measured using an H-flume structure (Brakensiek
et al., 1979), equipped with a mechanical stage recorder. The sediment
load passing the gauging structure is measured using a
Coshocton wheel sampler installed below the H-flume. This
sampler collects an aliquot of ca.1/200 of the flow, which is diverted
to a tank. After each storm event, samples are collected from the
tank to determine the mean sediment concentration in the tank.