Hydrology & Water Resources Engineering 7 min read
Flood Management
Definition of Flood According to the India National Commission on Irrigation and Drainage (INCID), ‘Flood’ is defined as a relatively…
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Drought Management
Definition of Drought In simple terms, a drought is a period of unusually dry weather that persists long enough to…
Hydrology & Water Resources Engineering 5 min read
Hydrologic Channel Routing
Introduction In channel routing the storage is a function of both outflow and inflow discharges and hence a different routing…
Hydrology & Water Resources Engineering 5 min read
Hydrologic Reservoir Routing
Definition and Types of Flood Routing Flood routing is the technique of determining the flood hydro graph at a section…
Hydrology & Water Resources Engineering 3 min read
Other Unit Hydrographs
Distribution Graph The distribution graph introduced by Bernard (1935) is a variation of the unit hydrograph. It is basically D-h…
Hydrology & Water Resources Engineering 4 min read
Synthetic Unit Hydrograph
Definition and Uses of Synthetic Unit Hydrograph To develop unit hydro graphs to a catchment, detailed information about the rainfall…
Hydrology & Water Resources Engineering 3 min read
Unit Hydrographs of Different Durations
Lack ofadequate data normally precludes development ofunit hydrographscovering a wide range ofdurations for a given catchment. Undersuch conditions aD hour…
Hydrology & Water Resources Engineering 3 min read
Derivation of Unit Hydrographs
Derivation of Unit Hydrograph from a Simple Storm A number of isolated storm hydrographs caused by short spells of rainfall…
Hydrology & Water Resources Engineering 5 min read
Unit Hydrograph
Definition of Unit Hydrograph This method was first suggested by Sherman in 1932 · A unit hydrograph is defined as the…
Hydrology & Water Resources Engineering 5 min read
Base Flow Separation
Methods of Base Flow Separation The surface-flow hydrograph is obtained from the total storm hydrograph by separating the quick-response flow…
Hydrology & Water Resources Engineering 4 min read
Stream Flow Hydrograph
Definition of Hydrograph The hydrograph which results due to an isolated storm is typically singlepeaked skew distribution of discharge and…
Hydrology & Water Resources Engineering 22 min read
Measurement of Runoff
Most hydrologic analyses involve runoff from a drainage area, and hence its measurement is of vital importance. If precipitation and…