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.

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

Soil moisture and temperature profiles (0- ~5m) in various types of soil/vegetation.

Soil moisture, temperature and succion profiles (0-~3m) along three catenae. Each catena is covered by a different vegetation type : herbaceous fallow (Nalohou), shrub fallow (Bira) and dry forest (Béléfoungou). On each catena, three stations are distributed on top, middle and bottom of a hillslope.