Use of the Unit Hydrograph The UHs establish a relationship between the ERH and DRH for a catchment They are of great use in i. The development of flood hydrographs for extreme rainfall magnitudes (for use in the design of ...
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DERIVATION OF UNIT HYDROGRAPHS
DERIVATION OF UNIT HYDROGRAPHS 1. A number of isolated storm hydrographs caused by short spells of rainfall excess, each of approximately the same duration (0.9 to 1.1D h) are selected from a study of continuously gauged runoff of the stream ...
UNIT HYDROGRAPH
UNIT HYDROGRAPH • Very often it is required to predict the flood hydrograph resulting from a known storm • A large number of methods are available to solve this problem • Unit Hydrograph Method is the most popular and widely ...