IUCN, Asia Regional Office (ARO)

The Brahmaputra River is one of the largest river systems in the world, yet it is also one of the most under-investigated, underdeveloped basins. This study analyzes available climatic and hydrologic data to carry out a physicalassessment of the basin. The analysis also looked at possible climate change impacts on temperature, evapotranspiration, rainfall, and river flows in the basin.

The purpose of this paper is to provide a range of information which may be useful during dialogue to establish appropriate river flow regimes in the Sekong River in Viet Nam, Lao PDR and Cambodia when large hydropower projects are constructed and operated. It is designed to provide baseline or background information to assist in the process.

This report was produced by the IUCN Secretariat in response to a direct and specific request from the IUCN Thailand National Committee. It is intended to provide an independent scientific assessment of possible impacts of the proposed Mae Wong Dam and associated mitigation measures.