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To calculate the catchment area of a dam, first define the area upstream from the dam outlet and then use a GIS (Geographic Information System) to measure the area of this upstream region. This area can also be calculated using a topographic map by adding all the draining areas that flow into the daRead more
To calculate the catchment area of a dam, first define the area upstream from the dam outlet and then use a GIS (Geographic Information System) to measure the area of this upstream region.
This area can also be calculated using a topographic map by adding all the draining areas that flow into the dam, or using a mathematical equation based on the stream network. In addition, one can use a rainfall-runoff model or hydrological analysis to accurately calculate the catchment area of the dam.
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