The 4-hr rainfall for successive 30 minutes intervals is as shown below. If the surface runoff is 6 cm. The value index will be A 3.9 cm/h B 3.125 cm/h C 3.4 cm/h D 3.7 cm/h Time (min) 0 30 60 90 120 150 180 210 240 Rainfall (cm) 0 0.8 2.4 4.1 1.6 2.9 3.2 1.5 2

Q: GF Q2: Estimate the peak flowrate for a catchment which has an area of 10 km². The length and slope…

A: Answer  We know that peak flow rate is given by Q = A*I*R360 where  Q = peak flow rate in m3/sec A =…

Q: 4. Given the following 2-hour unit hydrograph, determine the peak direct runoff rate (in cfs)…

A:

Q: For the given rainfall data, compute the runoff volume if the index is 0.9 in/hr. The watershed area…

A: φ  index = 0.9 in/hrWatershed area = 0.785 mi²  T(hr)          rainfall intensity (in/hr) 0- 3…

Q: The hyetograph rainfall event of 3 cm. in the figure corresponds to a

A:

Q: Time distribution of a rainfall- for situation 2 Time, h Cumulative Rainfall, cm O to 1 0.7 1 to 4…

A:

Q: Q2) Use the 1-h Unit Hydrograph tabulated below to predict the total flood hydrograph that would be…

A: It is required to find the flood hydrograph from the resulting DRH.

Probability, risk and uncertainty analysis for hydrological design

It gives a framework that is financially critical for finding the exceptional designs of hydrological systems with a reduced cost in total inclusive of the project cost and the disaster mitigation cost. But there would be hardly any assessment of a decent quality damage function. Hence, errors in demonstrating the hydrologic events, incorrect model parameters, and so on may occur. Here, we will discuss a specific hydrological design that of a detention basin for studying and understanding the risk-based procedure, uncertainties, and probability analysis by following a systematic framework.