A catchment has 6 existing rain gauges. The mean annual rainfalls recorded by these gauges in a given year are listed in the table below. What should be the optimum number of rain gauge stations in the catchment area with permissible error 10%? Rain gauge 2 3 4 5 6 Annual rainfall (cm) 82.6 102.9 180.3 110.3 98.8 136.7

Q: Determine the average precipitation depth using isohvetal method within the basin for a certain…

A: Solution:- Mean or average precipitation P=P1+P22×A1+P2+P32×A2+………………+Pn-1+Pn2×AnA1+A2+…………+An…

Q: If the coefficient of variation of rainfall values a the estimation of mean rainfall is 10%, then…

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Q: Question- There are 16 number of rain gauge stations which gives an error of 10% while estimating…

A: Number of stations N=16, Error e=10%, To Find- The coefficient of variation of the rainfall (Cv).

Q: The total annual precipitation for a region is approximately normally distributed with a mean of 848…

A: The total annual precipitation for a region is approximately normally distributed Mean…

Q: atchment area has 5 rain gauges installed, with an annual average rainfall of 120 cm and a standard…

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Q: Calculate the 1-hour 50-year rainfall estimate given that annual station data records have an…

A: Given - For 50- year, Kt =2.5922880 Xav. =56 mm Standard deviation, S.D. =4.12 To find - 1-hour…

Q: 2. A catchment has six rain gauge stations. In a year, the annual rainfall recorded by the gauges…

A: since the given question is multiple type therefore as per guidelines only one question will be…

Q: According to the rainfall records for a city, we have obtained the probabilities of receiving more…

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Q: A watershed has five rain gauge stations. In a year, the annual rainfall recorded by rain gauges are…

A: 1. Annual rainfall recorded by the five rain gauge stations (in cm): 115.5, 106.8, 125.4, 95.6, and…

Concepts of Flood Control

Flooding is a temporary overflow of water that submerges or covers the the usually dry land. It can also be defined as the overflow of the excess amount of water that covers a huge area of land which is normally dry.