Duration of Excess Rainfall in Engineering Hydrology Formulas

Duration of Excess Rainfall is time during which continuous rain is observed, or occurs, at a given point or within a given area or Excess Rainfall of the Unit Hydrograph used in deriving the S-curve. And is denoted by D_r. Duration of Excess Rainfall is usually measured using the Hour for Time. Note that the value of Duration of Excess Rainfall is always positive.

Formulas to find Duration of Excess Rainfall in Engineering Hydrology

fxDuration of ER given Maximum Rate of Discharge from S-CurveGo

Engineering Hydrology formulas that make use of Duration of Excess Rainfall

fxMaximum Rate of Discharge from S-CurveGo

fxArea of Catchment given Maximum Rate of Discharge from S-CurveGo

List of variables in Engineering Hydrology formulas

fx Area of Catchment Go

fx Equilibrium Discharge Go

FAQ

What is the Duration of Excess Rainfall?

Duration of Excess Rainfall is time during which continuous rain is observed, or occurs, at a given point or within a given area or Excess Rainfall of the Unit Hydrograph used in deriving the S-curve. Duration of Excess Rainfall is usually measured using the Hour for Time. Note that the value of Duration of Excess Rainfall is always positive.

Can the Duration of Excess Rainfall be negative?

No, the Duration of Excess Rainfall, measured in Time cannot be negative.

What unit is used to measure Duration of Excess Rainfall?

Duration of Excess Rainfall is usually measured using the Hour[h] for Time. Second[h], Millisecond[h], Microsecond[h] are the few other units in which Duration of Excess Rainfall can be measured.

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