Vientiane - Article 6A for planning purposes (pending issue)

The acceptable flows framework for planning purposes during the dry season is based on the monthly average discharge in the dry season (December-May) during 1986-2000, as simulated by the Baseline scenario in the DSF at Vientiane .

  December January February March April May
1:4 ARI 2193 m3/s 1537 m3/s 1140 m3/s 957 m3/s 1034 m3/s 1532 m3/s
1:5 ARI 2134 m3/s 1506 m3/s 1117 m3/s 928 m3/s 996 m3/s 1451 m3/s
80% FDC 2049 m3/s 1442 m3/s 1093 m3/s 929 m3/s 1013 m3/s 1379 m3/s
90% FDC 1919 m3/s 1368 m3/s 1047 m3/s 878 m3/s 863 m3/s 1211 m3/s
Flow framework cConsiderations

For each month, a range of thresholds is used to consider the year-to-year natural variation of water availability. In case of a wet year, the monthly minimum flow will be maintained at the upper bound while the lower bound will be applied in case of a dry year. In average, the monthly minimum flow should be maintained between the threshold ranges.

A considered scenario could NOT be deemed acceptable for planning purposes if the average discharge simulated by the DSF is below lower bound for one or more months of the dry season at one or more of the selected hydrological stations.

Hydrological stations
Name Station ID Country
Click on station name to see flow framework for planning purposes and associated thresholds details for each station
Chiang Saen 010501 Thailand
Vientiane 011901 Lao PDR
Khong Chiam 013801 Thailand
Pakse 013901 Lao PDR
Stung Treng 014501 Cambodia
Kratie 014901 Cambodia
Chrouy Changvar 019801 Cambodia
Tan Chau 019803 Viet Nam
Chau Doc 039801 Viet Nam