The unit hydrograph due to a storm may be obtained by dividing the ordinates of the direct runoff hydrograph by
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The unit hydrograph, because of the occurrence of a storm, can be derived by dividing the ordinates of the direct runoff hydrograph by the direct runoff volume. This is the most appropriate method, since the information regarding the period of the storm is not capable to providing any relevant details. Also, the amount of total rainfall does not matter, when it comes to dividing the ordinance of the direct runoff hydrograph.
Ans) direct runoff volume
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