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Vietnam

Hydro-meteorological and soil loss monitoring in Dong Cao catchment

Monitored variables in Dong Cao catchment are: 6-min and daily rainfall, hourly climate variables (wind speed, relative humidity, solar radiation, temperature), aperiodic water level, aperiodic suspended and bed particulate matter, and annual land use. At microplot scale, monitored variables are soil surface features, surface runoff, and soil loss.

Weir with water level recorder and automatic sediment sampler at the outlet of the Dong Cao catchment (photo : C. Valentin)
Main weir of Dong Cao catchment full of bed particulate matter after an extreme rainfall event (typhoon) (photo: J.-L. Maeght)

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