Using Isohyetal Method, find average rainfall over a catchment. The data is : Isohyetes in cm- 10, 11, 12, 13, 14, 15, 16, 17. The area b/w isohyetes (km2)- 50, 80, 110, 89, 70, 62, 120, 70. The average precipitation in cm -

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: A watershed has five non-recording rain gauges, installed in its area. The amount of rainfall…

A: Given that :-In an area, a watershed is installed which has five non-recording rain gauges. The…

Q: 4. Rainfall values observed at different points on a watershed (12.5 km?) are shown in Figure 4.14.…

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Q: The rainfall figures for successive 30-minute intervals are 35, 40, 120, 85, 45, 45 and 30 mm/hr. If…

A: Given,Rainfall data for sucessive 30 intervals=35,40,120,85,45,45 and 30 mm/hrϕ index=35 mm/hrTo…

Q: q= 2200 cfs q= 62.2970 cms The watershed above the same location at Little Alamance Creek is 7.2…

A: Given data:- Flow rate Q = 2200 cfs Rainfall duration t = 1 hour = 3600 seconds Water shed area A =…

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

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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: 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…

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

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Q: The record 24-hr rainfall in Alamance County was 6.71 inches, which fell in October, 1954. The Dry…

A: Given data Rainfall depth P = 6.71 inches  Watershed area = 4.06 square miles  1 sq. Mile = 27878400…

Q: The table below gives information on the accumulated rainfall (in inches) and discharge (in cfs) for…

A: a) Cumulative ass curve for rainfall and the hydrograph.b) volume of infiltration loss.

Q: A gage on a small (1-acre) urban parking lot recorded the following incremental rainfall data. 1.5 2…

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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.