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.

Surface suspended sediment concentration (in situ and/or satellite-derived)

Surface suspended sediment concentration (in situ and/or satellite-derived)

Daily or Monthly water dischargel at a gauging station

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.

Daily or Monthly water dischargel at a gauging station

Rainfall measurements collected since 1999 by recording raingauges to complement and densify the Oueme (CL.Rain_O) network, in particular over the Donga basin. NB: Negative values are missing values. Negative value other than -9999.9 is missing value estimated from the bucket. For a period with such missing data, although the same value is indicated for each timestep, the value applies to the whole time period.

Surface water global indices

Daily or Monthly water level at a gauging station

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.