H.W.2 A catchment has six rain gages. The annual rainfall recorded by gages are as follows. 3 4 Station Rainfall (cm) 2 82.6 102.9 180.3 110.3 98.8 136.7 For 10% error in the estimation of the mean rainfall, calculate the optimum number of the stations in the catchment.

Q: The following is the hydrograph resulted from a rainfall intensity of 2 cm/hr for a duration of 2…

A: Time (hours)Q ()010140228322416510To develop:2 hours unit hydrograph

Q: Draw Thiessen polygons on the catchment shown below. If the rainfall depths recorded by Gauge A, B,…

A: Since you have posted multiple questions, we will provide the  solution   only to the first question…

Q: (50%)2. In a storm of 210 minutes duration, the incremental rainfall at various time interval is…

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: Using Isohyetal Method, find average rainfall over a catchment. The data is : Isohyetes in cm- 10,…

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Q: The daily record of rainfall over a catchment area is 0.2 million cubic meters. It has been found…

A: Given: The rainfall over a catchment area is 0.2 million cubic meters. The rainwater reaches the…

Q: 1. Point rainfalls due to a storm at several rain-gauge stations in a basin are shown in Fig. 1.…

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Q: 2. The Friends Creek watershed has five rainfall gauges at the locations shown in the figure below.…

A: given data,five rainfall gauge location and recorded rainfall is givenFindmean area rainfall by…

Q: stimate the total excess/effective rainfall in mm for a 5% AEP storm. The temporal pattern…

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Q: The annual rainfall at station X and the average annual rainfall at 18 surrounding stations are…

A: The annual precipitation at station X are given The average annual precipitation at 18 surrounding…

Q: In the table below annual rainfalls of gage A, B, C and D are given. Gage D was permanently…

A: The given data is shown below:

Q: Following is the recorded data of a 0.8 km2 wide lake collected over a year: It receives a total…

A: Given: Duration = 1 year Area of lake = 0.8 km2 Precipitation, P = 1400 mm Surface water inflow, Qsi…

Q: Q3: A river catchment has a 2.0 hour unit hydrograph with the ordinates 0,3,11,35,55,66,63,40,22,9…

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Q: Engineering hydrology - hydrograph analysis

A: Step 1:Step 2:

Q: Hydrological Cycle Determine the optimum number of rain gauge stations in the catchment for an…

A: Admissible error e=10% 4 rain gauge stations Coefficient of variation Cv=30%   It is needed to find…

Q: Four rain gauge stations A, B, C, and D in a catchment area have a recorded 10, 15, 20 and 25 cm…

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Q: A catchment has seven raingauge stations. In a year the annual rainfall recorded by the raingauges…

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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.