Automatic measurement of water level converted into flow and electrical conductivity. Calibration of the stage-discharge relationships is made by an Acoustic Doppler Current Profilometer

Manual groundwater level for some wells and hourly groundwater measurements for others equipped with a logger. The water table level values are expressed from the soil surface.

Automatic measurement of water level converted into flow and electrical conductivity at the outlet of a 1st order catchment along specific vegetation catena (fallow, forest, bush savannah). The catchment is constituted of hillslope and a bas-fond. For small stream, calibration of the stage-discharge relationships is made by stream-gaging surveys using a wading-rod (velocity-area method). A value = 9999 stands for a dry gully.

Automatic measurement of water level converted into flow and electrical conductivity. Calibration of the stage-discharge relationships is made by an Acoustic Doppler Current Profilometer. A value = 9999 stands for a dry river.

Measurements of water level, electrical conductivity and water temperature are made by multi-level piezometers (<1m, 2m, 10m 20m depth) installed on each drilling site along specific vegetation catena (fallow, forest, bush savannah). Automatic measurements for the most superficial piezometers and manual measurements every two days for the others. The water table level values are expressed from the soil surface. A value = 9999 stands for a dry borehole.