A catchment of area 200km² is subjected to a storm with the following profile Time (hr) Rain (mm) 6 9 16.5| 48.0 | 20.0 3 12 15 18 21 24 12.8 | 9.1 5.5 1.2 3.1 If the volume of storm surface runoff is 1.6×10´m² , estimate the & index (in mm/hr) (neglect the effect of ET). A. 7.71 mm/hr O B. 1.77mm/hr C. 1.71 mm/hr O D. 7.11 mm/hr opines) Accessibiliy: Imvestigate

Q: The following are basic assumptions about the rational method except: O Rational coefficients are…

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Q: Q1) A Five hour storm has occurred on a catchment with the following rainfall intensities: Time (…

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Q: Direct runoff hydrograph at catchment outlet is of trapezoidal shape. This DRH is due to a recorded…

A: Direct runoff hydrograph as shown-Rainfall depth of 2 cm in 2 hours,To Find-The area of catchment in…

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: Q3) The rate of rainfall in mm/hr observed over a catchment of (30) km? is as follows: 16, 20, 24,…

A: Given data in question  Rainfall intensity Area 30 km2 Phi index 22 mm/hr To find out  Volume of…

Q: The rainfall intensity or each 30 minute period are given below for a storm. The basin area is 5…

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Q: If the following runoff is created by 5 hours of rainfall with a depth of 30 cm. What is the…

A: Rainfall Depth = 30 cm Duration of rainfall = 5 hours

Q: 1. Determine the direct runoff hydrograph by separating the baseflow. 2. Derive the unit hydrograph…

A: 1- Determination of Direct Runoff hydrograbh and UNIT hydrograbh ###

Q: Two storms, each of 4-hr duration and having rainfall excess of 3.0 and 2.0 cm, respectively, occur…

A: ##Resultanting Direct Runoff Hydrograbh for First and Second Period of time  ###

Q: a drainage basin with the following characteristics: Drainage Area is 125 acres Short grassy…

A: Applying snyder Mathode and using appropriate values of constand

Q: The length of a parking lot is L = 100 m, and it is sloped at So = 0.02. The surface of the lot is…

A: The time of concentration (tc) represents the time it takes for the water to flow from the furthest…

Q: The following table show the precipitation in (mm/hr.) observed at the rain gages (A, B, and C)…

A: The precipitation happens due to condens of water through a different process and moisture content…

Precipitation

Precipitation forms the basis of the water cycle on the Earth. The air is packed with water molecules in the form of moisture or water vapor. This water vapor usually rises to the atmosphere due to density differences. Precipitation represents any form of water, in liquid form or frozen form that forms in the earth's atmosphere. The water vapor up in the atmosphere condenses due to low temperature and it leads to the formation of clouds. The water vapor that forms clouds on account of condensation, is preferably known as cloud droplet. These cloud droplets when become heavy and can no longer sustain the weight of condensed water droplets, they come to the Earth in the form of rain, snow, ice pellets, and hail. Precipitation patterns, evaporation, and condensation are the three parameters that decide the global water cycle, climate change, and weather. Additionally, smoke and dust particles are equally important parameters for precipitation, as they provide the surface area for the water vapors to get condensed and to form water droplets. So they are known as condensation nuclei. The presence of other pollutants in the air also serves as condensation nuclei. Precipitation always results in the pure water supply to earth, as the salt from the seawater does not evaporate with the water.