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)).

Continuous monitoring of water levels and flows at all hydrometric stations in the Real Collobrier watershed since 1967.

Hydrological data from the Huai Ma Nai catchment (Thailand)

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.

Local observers record water level and take photographs of the scale every 10 days during the wet season and about once a month during the dry season. For turbidity, water sample are collected by local observer, every 10 days during the wet season and about once a month during the dry season, and sent by bus to Bamako for analyzing turbidity using a turbidimeter. A value of turbidity of 1001 stands for a value exceeding the sensor sensitivity.

Hydrological data from the Houay Pano catchment (Laos)

Hydrological data from the Dong Cao catchment (Vietnam)