Automatic measurements of water levels in creeks converted into flow.

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)).

Herbaceous vegetation aboveground mass are recorded in field sites, 1x1km in size. Vegetation variables are measured in 12 plots (1x1m) sampled under a random stratified method in each of the vegetation facies within site. These measures are done once a year at peak mass. In 2015, estimated masses should probably be corrected by about 15-20% due to late measurements.

Rainfall measurements collected over a network of daily reading raingauges, installed on a square of 10 km X 10 km (6 East-West lines of 10 km each, separated by 2 km from each other) located at the center of the Diantandou kori basin. The network is installed through a catena from the bottom of Dantiandou kori valley (Banizoumbou) to the Bani Kossey depression (10 km). The network is visited each day to record previous rainfall.

Monitoring of water redistribution and transfert in a sand dune system at different depths along hillslopes by manual measurements performed with portable probes (ML2 and PR2 Delta-T) during intensive field campaigns during the rainy season. Field measurements using the portable probes are performed every 10 to 15 days during the rainy season and every 2 months during the dry season.

Long term rainfall measurements collected since 1990 (Long Observation Period) by 30 recording raingauges over the Niamey meso site (1.6-3.1°E/12.8-14.1°N) with a regular sampling of about 25x25 km². 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.

Rainfall measurements collected since 2005 (Long Observation Period) by recording raingauges deployed along a north south transect (from 14.7 to 17° N, up to 10 gages). 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.

Soil moisture and temperature profiles at two stations about 35 km apart.