Rainfall measurements collected since 2003 by a network of daily reading raingauges deployed in the Hombori super site.

Piezometric surveys in domestic wells in villages or dedicated to pastoral use, where manual measurements are made with commercial luminous probe (OTT, 100 m in length) every month for seasonal and long term mesoscale groundwater balance surveys. The water table level values are expressed from the edge of the well. A value = 9999 stands for a dry well.

Limnimetric surveys in seasonal, natural ponds with manual (visual) measurements coupled with data loggers. The manual measurements are made on metric scale bars with a frequency of twice a month during the rainy season to once a month during the dry season. As the scale bars are not always matched to zero, water level values from these gauges need to be readjusted taking into account the lowest value read on the scale bars (please consult the specific metadata of each station (list of properties)).

Several rare elements concentration at a specified data/hour/minute

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.

Several rare elements concentration at a specified data/hour/minute

Daily or Monthly water dischargel at a gauging station

Daily or Monthly water level at a gauging station

Several trace elements concentration at a specified data/hour/minute

Several major/minor elements concentration at a specified data/hour/minute