Article 6A for planning purposes (pending issue)

Under Article 6A, during the dry season for planning purposes, it has been agreed to take forward a range of possible flow frameworks to test how they perform in guiding planning decisions in the future.

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

The acceptable flows framework is based on the monthly average observed discharge in the dry season (December - May) during 1986-2000, as simulated by the  Baseline scenario in the DSF at each of the selected hydrological stations . 


  Article reference Flow framework for planning purposes
Article 6A Acceptable minimum monthly natural flow during each month of the dry season The following flows frameworks and associated thresholds will be tested:
  • Option 1: a range of the 1:4-1:5 Annual Recurrence Interval (ARI)
  • Option 2: a range of the 80-90% time exceedance of Flow Duration Curve (FDC)

Location of hydrological stations for planning purposes

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


Location of hydrological stations for planning purposes
Mekong mainstream within the Lower Mekong Basin
Lower Mekong Basin boundary