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Many decisions on water allocation in river basins are made on economic grounds. Environmental and social benefits of water should also be considered in river basin management, and attempts should be made to value them similarly. This is not a straightforward task and very few studies have direct...
The paper reviews the existing methods used in India for estimation of flow characteristics at ungauged sites. It focuses on low and high flows, long-term mean flow and flow duration curves. Since it lists the actual formulae, it can be used as a quick reference guide for selecting a suitable tec...
Climate is changing world wide, and the science community in Sri Lanka have come up with ample evidence to suggest that the country?s climate has already changed. During 1961- 1990 it?s mean air temperature has increased by 0.016 0C per year (higher than the global average of 0.013 0C), and mean ...
The extension of the Uda Walawe irrigation scheme in southern Sri Lanka may have a significant ecological impact on the development area and its downstream wetlands. The evaluation of this impact is the subject for a long-term study that is presently being carried out by the International Water M...
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