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Any questions? mwright@aisb.hu
Starter: different factors affect the river regime (discharge of a river)...add a discharge line to the graph on the right to show the impact of dam building....
Starter: different factors affect the river regime (discharge of a river)...add a discharge line to the graph on the right to show the impact of dam building....
Dam building
How close were you? If there were any differences, why were there?
Objective: build a case study of contemporary dam building expansion in one major drainage basin
Objective: build a case study of contemporary dam building expansion in one major drainage basin
Outcomes:
Outcomes:
1. Locate the Mekong river and describe its location including the source, the countries it flows through and its mouth. What issues might there be given the location you describe?
2. One of the locations below is particularly impacted by dam building. Which one and what evidence makes you think this? Click the arrow to reveal more information...
Figure 5 shows the water levels hydrograph associated with the rainfall in the upper part of the Mekong River from Chiang Saen to Paksane, compared with their LTA. Water levels from Thailand’s Chaing Saen to Lao PDR’s Paksane were below their LTAs, during the wet season 2022. The trend of water level at Luang Prabang Station sometimes higher or lower to its historical maximum and LTA values. It has been observed since early 2019. The phenomenon was potentially caused by upstream dam operations, downstream Xayaburi dam, and heavy rainfall in the surrounding areas. Being situated between the upstream (Nam Beng, Nam Ou, Nam Suong, and Nam Khan) and downstream (Xayaburi) hydropower dams, the Luang Prabang station has a unique characteristic as it is influenced by the operations of all its surrounding dams. Thus, the water level at this station can possibly change very rapidly during the early of wet and dry season.
3. Compare and contrast the hydrograph at Luang Prabang with the others. What impact does the proximity of the dams appear to be having at Luang Prabang on the flow? What might be the consequences of these differences?
4. Use this information about the Mekong, as well as your own research, to build a case study of dam building expansion. You must include:
data on the scale of the dam building
examples
costs and benefits
the stakeholder groups involved and their role, specifically an example of conflict resolution. This will require further research.
PLENARY: why are these schemes often called ' multi purpose schemes'?
PLENARY: why are these schemes often called ' multi purpose schemes'?
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